February 2026 - NANOG - lists.nanog.org

is it just me or...
by Michael Thomas 14 Apr '26

14 Apr '26

I'm using Thunderbird to read mail and lately the only thing I've seen in the mail.from address is |North American Network Operators Group | and not the author's address which makes it really hard to tell who is talking to whom. I is just me, or has there been a list config change that is causing this? Mike

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Correctly dealing with bots and scrapers.
by Andrew Latham 25 Mar '26

25 Mar '26

I just had an issue with a web-server where I had to block a /18 of a large scraper. I have some topics I could use some input on. 1. What tools or setups have people found most successful for dealing with bots/scrapers that do not respect robots.txt for example? 2. What tools for response rate limiting deal with bots/scrapers that cycle over a large variety of IPs with the exact same user agent? 3. Has anyone written or found a tool to concentrate IP addresses into networks for IPTABLES or NFT? (60% of IPs for network X in list so add network X and remove individual IP entries.) -- - Andrew "lathama" Latham -

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How long AS-PATH policies have you used
by Saku Ytti 17 Mar '26

17 Mar '26

We've had problems in various NOS in generating large prefix-lists. In absolute configuration size, as well as prefix-set sizes. I'd like to hear about operational experiences, how long AS-PATH policies people have successfully run and in which NOS. I am not interested in exact AS_PATH contents, I am only interested that it contains a named set of AS numbers, in any order and any repetition. In Junos speak ^[1 42 500 1212]*$ How many ASN can I iterate, before I become market leading and have to work with vendors to fix bugs? The interest is because of RPKI we could get rid of prefix-lists, but we might still want to verify AS_PATH. Consider AS-YTTI having AS43792. a) They advertise google with invalid origin b) They advertise google with valid origin Maybe these come from some BGP optimization tool they run. A) is dropped by RPKI, B) is passed. But B) can be dropped by prefix-list filter or AS-PATH filter which doesn't allow Google ASN to exist in the AS_PATH. So I don't really need to check the prefix again, after it passed RPKI. AS_PATH check is equally strong. -- ++ytti

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RPKI's 2025 Year in Review
by Job Snijders 04 Mar '26

04 Mar '26

Dear all, Happy new year! Wanna know how RPKI evolved throughout 2025? Read on! :) In this memo I'll share some RPKI statistics, summarize highlights from the IETF Standards Development process, and reflect on emerging trends. Year to Year Growth of the distributed RPKI database =============================================================== A straight-forward method to compare 2024 and 2025 is to look at the absolute numbers. The below table was constructed using data collected by RPKIViews.org between January 1st, 2025 and December 31st, 2025 with the ARIN, AfriNIC, APNIC, LACNIC, and RIPE NCC Trust Anchors. EOY 2024 / EOY 2025 Snapshot differences: ----------------------------------------- 2024-12-31 2025-12-31 ( diff) Total validated cache size (KB): 767,245 923,058 (+ 20%) Total number of files (object count): 415,384 493,707 (+ 19%) Wall time validation run (seconds): 46 35 (- 23%) Wall time without outliner CA (seconds): 26 33 (+ 27%) Publication servers (FQDNs): 53 60 (+ 13%) Certification authorities: 44,935 49,721 (+ 11%) Route Origin Authorizations (ROAs): 280,692 344,209 (+ 23%) Uniq Validated ROA Payloads: 639,900 787,737 (+ 23%) Average ROAIPAddresses per ROA: 2.3 1.8 (- 22%) Unique origin ASNs in ROAs: 47,282 52,661 (+ 11%) IPv4 addresses covered: 2,726,513,768 2,783,187,105 (+ 2%) Uniq IPv4 addresses covered: 1,658,281,248 1,818,913,944 (+ 10%) IPv6 addresses covered: 17,392 * 10^30 18,684 * 10^30 (+ 7%) Uniq IPv6 addresses covered: 15,139 * 10^30 16,384 * 10^30 (+ 8%) Unique ASPA Customer ASIDs: 87 556 (+539%) The number of IP addresses covered by RPKI ROAs grew by 10%. This is similar to last year's report. However, ASPA object count absolutely skyrocketed in 2025! The "Uniq ASPA Customer ASIDs" field is a simple gauge counter for global ASPA deployment on the signer side. At the moment of writing, for about 0.5% of Autonomous Systems in the Internet global routing system an ASPA record is published. That's a very interesting development. The ability to publish ASPA objects became readily available [4] in the RIPE NCC region in 2025, and as of January 2026 also fully available through ARIN Online [5]. The "Wall time validation run (seconds)" metric is produced by revalidating the data contained in the two snapshots multiple times in a benchmark using the same modern multi-threaded RPKI cache implementation on the same 4 CPU core machine, without performing any network operations (i.e. offline validation mode). This metric relates to the hypothesis that as the RPKI grows (in size and number of objects), without also improving efficiency (information density), the overall processing time to validate the complete dataset will increase. This year's benchmark environment: Rpki-client 9.7, OpenSSL 3.5.4, Debian 13, on Intel Xeon. WITH EVERY RPKI CA, FIRST 2024 THEN 2025: $ hyperfine -w2 'rpki-client -p4 -P 1735689171 -n -d rpki-20241231T235251Z/data /tmp' Time (mean ± σ): 46.514 s ± 0.172 s [User: 173.345 s, System: 5.264 s] Range (min … max): 46.257 s … 46.756 s 10 runs $ hyperfine -w2 'rpki-client -p4 -P 1767225374 -n -d rpki-20251231T235614Z/data /tmp' Time (mean ± σ): 35.046 s ± 0.206 s [User: 125.092 s, System: 5.894 s] Range (min … max): 34.756 s … 35.444 s 10 runs FIRST 2024 THEN 2025, WITHOUT THE OUTLINER CA: 20241231T235251Z: Time (mean ± σ): 26.257 s ± 0.152 s [User: 92.878 s, System: 4.590 s] Range (min … max): 26.069 s … 26.485 s 10 runs 20251231T235614Z: Time (mean ± σ): 32.903 s ± 0.143 s [User: 117.059 s, System: 5.444 s] Range (min … max): 32.635 s … 33.127 s 10 runs This year the "wall time" metric _seemingly_ deflated... but, unfortunately, further sleuthing shows that the 2024 numbers were heavily skewed by the products issued by a specific large CA under ARIN, an outliner so to speak. In the 2024 snapshot that one CA had 50,125 Manifest entries and 15,944 CRL entries, while in the 2025 snapshot the same CA had 48,896 Manifest entries and only 33 CRL entries. The key observation here is that the impact of large CRLs becomes more pronounced with longer Manifests. In conclusion and discounting the products of that one outliner CA, overall processing time of the RPKI increased by 25%. [ Note: the wall time metric is not comparable between successive annual reports (for example, next year I might use a different computer, or use a different validator implementation) - but within the context of a single annual report the comparison between the snapshots is apples to apples! ] The "Average ROAIPAddresses per ROA" metric shows how many IP prefixes, on average, are contained within a single ROA object. The higher the number of ROAIPAddresses per ROA is, the higher computational efficiency likely is to be. "Efficiency" in this context is viewed as how many ROAIPAddress entries are packed together and signed with a single EE certificate. A higher number means more efficiency (and less RP bandwidth consumption) The RIPE NCC hosted CA system yields 6.6 prefixes per ROA, while the current ARIN and LACNIC approach result in only 1.1 and 1.3 prefixes per ROA, respectively (almost the worst possible case). APNIC and its community lead in efficiency with 8.2 per ROA. The impact that CA implementation choices have on the RPKI's scalability remains an area of concern: large CA operators (such as the RIRs) need to take special care when deciding on parameters such as ROAIPAddress packing and certificate validity periods, in order to curb uneconomical Manifest & CRL growth. Issuing RPKI objects aiming for high information density helps improve predictable delivery trajectories towards relying parties. Statistics on accumulating counters throughout the year: -------------------------------------------------------- The following statistics were produced using the RPKIViews 2024 Amalgamation [6] and RPKIViews 2025 Amalgamation [7] datasets. I believe these datasets to be a near complete collection of all signed RPKI data produced in those years. Almost every ROA! The objects in the Zenodo hosted archives can be inspected with "rpki-client -jf" (filemode). 2024 2025 Number of Rpkiviews snapshots produced: 64,923 90,523 (+ 39%) Newly discovered RPKI objects: 56,586,149 61,524,413 (+ 9%) Avg number of new objects per second: 1.79 1.98 (+ 10%) Median object size (bytes): 1,924 1,924 ( -) Mean object size (bytes): 2,193 2,531 (+ 15%) Cumulative size of all objects (KB): 121,211,067 152,094,584 (+ 25%) The above numbers can be used to better understand RPKI transport protocol efficiency. More on that next year! IETF SIDROPS - Working Group developments ========================================= Some fun updates from the IETF working group responsible for development and maintenance of the RPKI technology stack... *** SIDROPS ***. This RPKI-focused design & implementation group now operates with a new charter. The most significant change in modus operandi being that RFC publication now requires multiple implementations to exist and interoperate. Read the full charter here: https://datatracker.ietf.org/wg/sidrops/about/ ASPA - where we at? ------------------- Close to Working Group Last call! Depending our luck this might mean the specifications are published in late 2026. Word on the streets is that various commercial-off-the-shelf/hardware vendors are working on ASPA implementations, and a number of BGP open source projects already made ASPA verification implementations available to the wider public. Other (New) Work in SIDROPS --------------------------- 1/ A new scalable data synchronisation protocol called Erik Synchronisation is in the works. It is a HTTP-based protocol using Merkle trees, a content-addressable naming scheme, and concurrency control using monotonically increasing sequence numbers. https://datatracker.ietf.org/doc/html/draft-ietf-sidrops-rpki-erik-protocol 2/ What MRT Tabledumps meant for researching BGP, is what CCR is intended to be for the RPKI. CCR (Canonical Cache Representation) is a new small and efficient binary file format to record validation outcomes and hash markers. https://datatracker.ietf.org/doc/html/draft-ietf-sidrops-rpki-ccr SIDROPS Finished work --------------------- One new clarification RFC was published: * RFC 9829 - Handling of Resource Public Key Infrastructure (RPKI) Certificate Revocation List (CRL) Number Extensions https://www.rfc-editor.org/rfc/rfc9829.html Small Point On Housekeeping: ============================ The RPKIViews archive data collection approach and structure were revised at the start of 2026. A number of rpkiviews gatherer nodes now use a Tar+Zstandard spooling system to store raw data and associated snapshots in Canonical Cache Representation format. The changes in how RPKIviews data is stored should have a positive effect, meaning more snapshots can be gathered per hour while at the same time consuming less disk storage space than previously. I'm curious to see what this increase in data resolution might show us next year! Final words =============================================================== The RPKI remains an important tool in the toolbox to identify & prevent routing incidents. Deployment of RPKI allows operators to improve network reliability by strengthening the security and integrity of their interconnection with the global Internet routing system. The system is working pretty good and will continue to serve us well if special care is taken to continually monitor and optimize the RPKI's data packing practises & delivery methods. Kinds regards, Job Snijders ps. Shout out to Lee Hetherington, Matsuzaki "maz" Yoshinobu, Niels Bakker, Jeroen Lauwers, Jeroen Massar, Digital Ocean, and Tom Scholl for their help to the RPKIViews.org project. References: RPKIViews - http://www.rpkiviews.org/ https://dango.attn.jp/rpkidata/2024/12/31/rpki-20241231T235251Z.tgz https://josephine.sobornost.net/rpkidata/2025/12/31/rpki-20251231T235614Z.t… Last year's report: https://blog.apnic.net/2025/01/28/rpkis-2024-year-in-review/ 2023 report: https://labs.ripe.net/author/job_snijders/rpki-2023-review-growth-governmen… [4]: https://labs.ripe.net/author/tim_bruijnzeels/aspa-in-the-rpki-dashboard-a-n… [5]: https://www.arin.net/announcements/20260120/ [6]: Snijders, J., "RPKIViews 2024 Amalgamation". Zenodo. https://doi.org/10.5281/zenodo.18328474 [7]: Snijders, J., "RPKIViews 2025 Amalgamation". Zenodo. https://doi.org/10.5281/zenodo.18332099

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AT&T Outage Contact
by Eric C. Miller 02 Mar '26

02 Mar '26

Hello, does anybody have a working outage escalation list? Our contacts aren't answering on the weekend and express ticketing isn't letting us create tickets. It seems that nobody staffs their call center numbers anymore either. Thank you! Eric

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 27 Feb '26

27 Feb '26

This is an automated weekly mailing describing the state of the Global IPv4 Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG. Daily listings are sent to bgp-stats(a)lists.apnic.net. For historical data, please see https://thyme.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. IPv4 Routing Table Report 04:00 +10GMT Sat 28 Feb, 2026 IPv4 BGP Table (Global) as seen at Japan. Report Website: https://thyme.apnic.net Detailed Analysis: https://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 1039317 Prefixes after maximum aggregation (per Origin AS): 398024 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 510339 Number of IPv4 prefixes with a valid ROA: 620179 Number of IPv4 prefixes with an invalid ROA: 1361 Number of IPv4 prefixes with no ROA: 417777 Total ASes present in the Internet Routing Table: 78078 Prefixes per ASN: 13.31 Origin-only ASes present in the Internet Routing Table: 67092 Origin ASes announcing only one prefix: 27321 Transit ASes present in the Internet Routing Table: 10986 Transit-only ASes present in the Internet Routing Table: 564 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1124 Number of instances of unregistered ASNs: 1163 Number of 32-bit ASNs allocated by the RIRs: 48889 Number of 32-bit ASNs visible in the Routing Table: 39990 Prefixes from 32-bit ASNs in the Routing Table: 222954 Number of bogon 32-bit ASNs visible in the Routing Table: 116 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 441 Number of addresses announced to Internet: 3114644224 Equivalent to 185 /8s, 165 /16s and 179 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 337601 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 285106 Total APNIC prefixes after maximum aggregation: 82299 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 272227 Unique aggregates announced from the APNIC address blocks: 107120 APNIC Region origin ASes present in the Internet Routing Table: 15092 APNIC Prefixes per ASN: 18.04 APNIC Region origin ASes announcing only one prefix: 4641 APNIC Region transit ASes present in the Internet Routing Table: 1996 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10643 Number of APNIC addresses announced to Internet: 753174656 Equivalent to 44 /8s, 228 /16s and 136 /24s APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 63488-64098, 64297-64395, 131072-155961 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8, 163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 304722 Total ARIN prefixes after maximum aggregation: 136646 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 303532 Unique aggregates announced from the ARIN address blocks: 147179 ARIN Region origin ASes present in the Internet Routing Table: 19411 ARIN Prefixes per ASN: 15.64 ARIN Region origin ASes announcing only one prefix: 7092 ARIN Region transit ASes present in the Internet Routing Table: 1930 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5489 Number of ARIN addresses announced to Internet: 1352813824 Equivalent to 80 /8s, 162 /16s and 77 /24s ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863, 39936-40959, 46080-47103 53248-55295, 62464-63487, 64198-64296, 393216-402332 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 285237 Total RIPE prefixes after maximum aggregation: 141047 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287843 Unique aggregates announced from the RIPE address blocks: 186606 RIPE Region origin ASes present in the Internet Routing Table: 29308 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12167 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13117 Number of RIPE addresses announced to Internet: 733244288 Equivalent to 43 /8s, 180 /16s and 107 /24s RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 40960-45055, 47104-52223, 56320-58367 59392-61439, 61952-62463, 64396-64495 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 126542 Total LACNIC prefixes after maximum aggregation: 30372 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 122318 Unique aggregates announced from the LACNIC address blocks: 49610 LACNIC Region origin ASes present in the Internet Routing Table: 11350 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2679 LACNIC Region transit ASes present in the Internet Routing Table: 2526 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9360 Number of LACNIC addresses announced to Internet: 170949888 Equivalent to 10 /8s, 48 /16s and 125 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 36586 Total AfriNIC prefixes after maximum aggregation: 6945 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 52956 Unique aggregates announced from the AfriNIC address blocks: 19441 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.27 AfriNIC Region origin ASes announcing only one prefix: 742 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1381 Number of AfriNIC addresses announced to Internet: 103214592 Equivalent to 6 /8s, 38 /16s and 238 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 13817 8945 105 CHINAMOBILE-CN China Mobile Communication 7545 5996 831 546 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5026 4193 77 ERX-CERNET-BKB China Education and Resear 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 18403 4532 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4049 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 178 CMNET-JIANGSU-AP China Mobile communicati 45899 3330 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2979 863 509 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14399 41221 5556 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 174 3783 8769 861 COGENT-174 - Cogent Communications, LLC, 6327 3709 1321 71 SHAW - Shaw Communications, CA 396982 3287 4856 483 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3141 54728 2392 DNIC-AS-00749 - United States Department 16625 2738 1191 2104 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2698 221 889 AS-COLOCROSSING - HostPapa, US Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7232 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 20940 3837 3393 113 AKAMAI-ASN1, NL 9009 3822 355 2244 M247, RO 12389 3173 2320 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2653 192 1944 CDNEXT, GB 34984 2470 366 577 TELLCOM-AS, TR 8452 1695 1853 19 TE-AS TE-AS, EG 203020 1609 243 782 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12745 3299 599 UNINET, MX 10620 3450 457 1104 Telmex Colombia S.A., CO 13999 2453 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1439 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1377 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1250 371 22 INTEGRATEL PERU S.A.A., PE 22884 1060 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1058 2475 94 TIM SA, BR Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1915 612 30 RAYA-AS, EG 36992 1846 1532 339 ETISALAT-MISR, EG 24863 1288 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1151 522 46 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 564 47 168 Africa-on-Cloud-AS, ZA 15399 552 57 59 WANANCHI-, KE Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14399 41221 5556 AMAZON-02 - Amazon.com, Inc., US 9808 13817 8945 105 CHINAMOBILE-CN China Mobile Communication 8151 12745 3299 599 UNINET, MX 12479 7232 1711 149 UNI2-AS, ES 7545 5996 831 546 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5026 4193 77 ERX-CERNET-BKB China Education and Resear 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4807 546 330 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3119 371 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4640 308 1017 CABLEONE - CABLE ONE, INC., US Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13817 13712 CHINAMOBILE-CN China Mobile Communications Grou 8151 12745 12146 UNINET, MX 12479 7232 7083 UNI2-AS, ES 7545 5996 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5026 4949 ERX-CERNET-BKB China Education and Research Net 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4532 4508 FPT-AS-AP FPT Telecom Company, VN 9498 4807 4477 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 4411 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4049 4020 VIETEL-AS-AP Viettel Group, VN Complete listing at https://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 13450 UNALLOCATED 8.29.117.0/24 55002 DEFENSE-NET - F5, Inc., 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En Complete listing at https://thyme.apnic.net/current/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US Complete listing at https://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:16 /9:14 /10:40 /11:95 /12:299 /13:583 /14:1199 /15:2106 /16:13707 /17:8376 /18:13629 /19:25672 /20:46537 /21:52924 /22:113951 /23:107495 /24:651985 /25:689 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6921 12745 UNINET, MX 12479 6162 7232 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3500 4640 CABLEONE - CABLE ONE, INC., US 6327 3488 3709 SHAW - Shaw Communications, CA 22773 3048 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2611 14399 AMAZON-02 - Amazon.com, Inc., US 30036 2311 2657 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2230 3450 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2541 2:1602 3:976 4:9 5:5119 6:193 7:6 8:1525 9:27 11:172 12:1197 13:649 14:2691 15:455 16:177 17:398 18:922 20:600 21:4 22:188 23:8179 24:2634 25:2 27:2753 29:19 31:3424 32:31 34:81 35:290 36:4640 37:4460 38:10304 39:1270 40:424 41:4549 42:2029 43:2948 44:439 45:19871 46:4919 47:404 48:53 49:2200 50:2086 51:600 52:1282 54:267 55:1113 56:11 57:319 58:2422 59:1414 60:1176 61:3120 62:3139 63:1760 64:6241 65:2115 66:6037 67:3262 68:1499 69:4243 70:1040 71:615 72:3126 74:2980 75:1502 76:594 77:2827 78:1912 79:1790 80:2348 81:2229 82:4041 83:1452 84:2052 85:3836 86:1106 87:2394 88:1351 89:4709 90:811 91:8455 92:2865 93:3011 94:4331 95:4596 96:1448 97:314 98:951 99:797 100:67 101:1341 102:4454 103:32349 104:5506 105:793 106:924 107:2855 108:1218 109:4228 110:2288 111:4157 112:3147 113:1983 114:2181 115:2223 116:2171 117:3468 118:2980 119:2104 120:2709 121:1572 122:2984 123:2343 124:1703 125:3005 126:125 128:1672 129:964 130:1590 131:2406 132:793 133:464 134:1642 135:567 136:1629 137:1414 138:3109 139:1623 140:1842 141:1575 142:2536 143:2156 144:1727 145:637 146:2206 147:2158 148:2781 149:2988 150:1328 151:2679 152:2283 153:946 154:9621 155:2300 156:4379 157:2245 158:1506 159:2774 160:3723 161:1958 162:4006 163:2384 164:2018 165:2610 166:1288 167:2235 168:3965 169:891 170:5521 171:1119 172:4583 173:3461 174:887 175:1350 176:3807 177:4740 178:4371 179:2289 180:3026 181:4427 182:3969 183:2840 184:2007 185:21783 186:5624 187:4910 188:4559 189:4499 190:9744 191:1571 192:11500 193:9599 194:7866 195:5702 196:3277 197:3222 198:6280 199:6127 200:8208 201:6377 202:10843 203:10550 204:4758 205:3773 206:4509 207:4012 208:4379 209:5451 210:5004 211:2779 212:5012 213:4086 214:1076 215:54 216:7224 217:3525 218:1730 219:590 220:2197 221:1316 222:1080 223:3333 End of report

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Early Bird Registration Rates End Sunday + MORE!
by Nanog News 27 Feb '26

27 Feb '26

*** Early Bird Registration Rates End Sunday* ------------------------------------------------------------ *Register for our Next Conference (Jun.1-3, Bellevue, WA) + Save!* If you are serious about staying ahead of routing trends, infrastructure shifts, and the operational realities of 2026, this is the moment to commit. Early bird pricing won't last! * Register early. * Save money. * Show up ready! *REGISTER NOW *(https://nanog.org/events/nanog-97/register/) *** NANOG 97 Call for Content!* ------------------------------------------------------------ *Transform Your Ideas into a Presentation* *We are aiming to highlight presentations throughout NANOG 97 focusing on Site Reliability Engineering.* Potential site reliability engineering topics include monitoring and observability, incident management, capacity planning, and change management. As always, other topics are welcomed, too! *MORE INFO *(https://nanog.org/program/call-content/) *** N96 Pics Are Available!* *------------------------------------------------------------Download Your Favorite Memories from NANOG 96* The NANOG 96 Flickr albums are now available! View a time capsule of three days that felt less like a conference and more like a concentrated burst of operator brainpower. *SEE ALBUMS *(https://www.flickr.com/photos/nanog/albums/) *** Video of the Week—"BGP in 2025" w/ Geoff Huston* ------------------------------------------------------------ In one of our most viewed videos from N96, Geoff discusses "BGP in 2025." In this presentation, he dives into metrics of BGP, comparing the data over the past two decades to the data relating to 2025. *WATCH NOW *( https://www.youtube.com/watch?v=Sm1HjdmoeeA&list=PLO8DR5ZGla8i1P6NjMTMxvym0… ) *** Stay Connected* ------------------------------------------------------------ http://www.facebook.com http://www.instagram.com/nanog_org/ http://www.linkedin.com/company/nanog/ https://www.twitter.com/nanog/ http://nanog.org

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AS3356 Lumen/Level3 contact
by Marco Moock 26 Feb '26

26 Feb '26

Hello! I noticed some issues with the AS-Set AS-GBLX, as it is missing some of their transit customers. Other ISPs filter based on that. Does anyone here know a way to contact their network operators? -- kind regards Marco

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OT: Routers with highest uptime
by Markus 26 Feb '26

26 Feb '26

Hi NANOG, in the past there was the Netcraft website which showed publicly "Servers with the highest uptime". Sadly that site apparently doesn't exist anymore. I'm wondering what are the routers worldwide with the highest uptime. :) I'll make a start. 2x Juniper M7i lab routers running BGP + VRRP: --- JUNOS 12.3R2.5 built 2013-03-22 16:52:47 UTC admin@test01> show system uptime Current time: 2026-02-25 20:04:26 CET System booted: 2015-05-16 03:44:05 CEST (562w4d 17:20 ago) Protocols started: 2015-05-16 03:46:59 CEST (562w4d 17:17 ago) Last configured: 2026-02-22 18:57:12 CET (3d 01:07 ago) by admin 8:04PM up 3938 days, 17:20, 1 user, load averages: 0.25, 0.22, 0.17 --- JUNOS 12.3R2.5 built 2013-03-22 16:52:47 UTC admin@test02> show system uptime Current time: 2026-02-25 20:04:59 CET System booted: 2015-01-31 03:43:58 CET (577w4d 16:21 ago) Protocols started: 2015-01-31 03:47:48 CET (577w4d 16:17 ago) Last configured: 2026-02-19 20:41:16 CET (5d 23:23 ago) by admin 8:04PM up 4043 days, 16:21, 1 user, load averages: 0.19, 0.08, 0.07 Is that good or "like nothing"? :) Regards Markus

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Backhoes surround AT&T office in Arlington VA
by Sean Donelan 26 Feb '26

26 Feb '26

The AT&T toll office in Arlington VA is surrounded by a half-dozen backhoes (2 in front, more in the side-street around the corner). Instead of the usual "call before you dig" markings, they had full crew of professional surveyors marking a grid and repair trucks from multiple telco/carriers standing by. A lot of "suit & tie" folks on-site too. Probability before I lose some service? https://www[.]donelan[.]com/pictures/

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