August 2025 - NANOG - lists.nanog.org

** Trends that are Shaping the Conversation at N95 + MORE!
by Nanog News 29 Aug '25

29 Aug '25

***Tr**ends that are Shaping the Conversation at N95* *------------------------------------------------------------* *Automation, Routing, IPv6/VXLAN Migration, Resilience, Hardware/Optics + More!* *Talk submissions will be open until Sept. 8.* From AI and automation to holistically networked enterprise environments, NANOG consistently reflects the most current and emerging trends in networking. Over 20 proposals have been submitted. *So, what themes are currently trending?* *READ MORE (* https://nanog.org/stories/articles/trends-that-are-shaping-the-conversation… ) *** 2025 NANOG Board Nominations are Open!* ------------------------------------------------------------ *You Must be an NANOG Member to Submit Nominations* The Elections Committee is happy to announce the start of this year’s Board election cycle, where we will continue the use of ranked choice voting! Board Candidate nominations are now open, and the complete election timeline can be found online. *VIEW MORE *(https://nanog.org/members/elections/elections-nominations/) *** Six Flags Over Texas NANOG Social Sponsorship Available!* ------------------------------------------------------------ *Invest in our signature Social, taking place at Six Flags Over Texas in Arlington.* *Contact sponsorship(a)nanog.org <sponsorship(a)nanog.org> for more info!* *EMAIL NOW* (mailto:Sponsorship@nanog.org) *** Happy Labor Day, NANOG Community!* ------------------------------------------------------------ This Labor Day, we celebrate the people behind the networks: your innovation, collaboration, and grit keep the world connected. Wishing our NANOG community a safe + meaningful holiday! *** 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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IPv4 Games
by Justine Tunney 29 Aug '25

29 Aug '25

I operate an online service at https://ipv4.games/ that invites people to send http requests to my web server from a lot of different IP addresses. In order to claim an IP, you need to successfully make a tcp three-way handshake with a VM on Google's network. Somehow a player in Europe named femboy.cat has successfully managed to claim 20 million IPs, which is 9% of all IPv4 hosts according to Censys. Does anyone have any idea how they're doing it? Would anyone here be willing to be their North American rival?

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Link-state EGP
by Saku Ytti 28 Aug '25

28 Aug '25

The SPF discussion reminded me of a question I've been thinking about. Why do we use distance vector EGP? Why do we advertise prefixes? BGP made sense when we didn't have to worry about degenerates, when the Internet was largely academic. Prefix is configured once to the site where it exists, and no one else does anything, very optimal. But is that sensible today? When we have to also configure the prefix out-of-band locally on every site, potentially 3 times, RPKI (RTR maybe), prefix-list (for BGP) and access-list (for antispoof). So if we discover ASN/Prefix association anyhow out-of-band, why do we need to see +million prefixes in-band? What if EGP would flood link-states? What would we win? What would we lose? Potential wins: - flooded link-states could be signed, so we could verify both AS1->AS2, AS2<-AS1 link-state exists with valid signatures. You couldn't hijack ASN, the entire path could be validated. - initial convergence would be 50-100 times faster - lot less signalling/flapping - loop free alternatives for rapid convergence We could see some problems, for TE reasons I might advertise different prefixes from different sites with the same AS. I'm not sure if that is a legitimate concern, those are niche cases and for those cases we could just register more ASNs and move the ASNs instead of prefixes. But I'm sure there are more obvious weaknesses that don't immediately spring to mind. -- ++ytti

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Technical contact for redflagdeals.com
by Stephen Fulton 27 Aug '25

27 Aug '25

Apologies for the noise, but if anyone has a technical contact for redflagdeals.com, I would appreciate that. Dealing with a large range of IP's which they appear to be blocking. Their CDN confirmed no issue on their side and pointed us to RedFlagDeals. Thanks, Stephen

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Re: Digital Element, Neustar (Transunion) & ipinsight.io)
by John Sweeting 26 Aug '25

26 Aug '25

ARIN’s current Out of Region policy can be found in Section 9 of the ARIN Number Resource Policy Manual, see https://www.arin.net/participate/policy/nrpm/#9-out-of-region-use From: Jon Lewis via NANOG <nanog(a)lists.nanog.org> Date: August 25, 2025 at 11:36:59 AM EDT To: David Conrad via NANOG <nanog(a)lists.nanog.org> Cc: Jon Lewis <jlewis(a)lewis.org> Subject: Re: Digital Element, Neustar (Transunion) & ipinsight.io Reply-To: North American Network Operators Group <nanog(a)lists.nanog.org> On Sat, 23 Aug 2025, David Conrad via NANOG wrote: The problem is the assumed binding of <IP address, geographic address> in the “northern hemisphere” or wherever. This has never been guaranteed, has always been questionable, and, historically, was actively discouraged, at least by the RIRs (“the Internet does not use geopolitical boundaries for address allocation”, handwaving away the RIR geographical monopolies). Huh? It wasn't that many years ago, ARIN considered "out of region" utilized IP space to not qualify as "utilized" for purposes of qualifying for additional allocations by showing your existing allocations were sufficiently utilized. Though that issue is relatively moot at this point, that policy did eventually change. The problem, as I think you pointed out earlier, is that various parties, for good or ill, need there to be an <IP,geo> binding, even if it doesn’t really exist, so using what information they have, they make it up as they go along. Sometimes (usually) it works. Sometimes, it doesn’t. The crux is that, when it doesn’t, the mechanisms to fix the binding, such as they are, sucks This varies quite a bit from one IP Geo provider to the next. Some are pretty good (have web pages where you can do test queries against their data, will accept your geofeed data if you tell them where to get it, etc.). Others (like Digital Element) seem to be entirely opaque and obtuse. ---------------------------------------------------------------------- Jon Lewis, MCP :) | I route Blue Stream Fiber, Sr. Neteng | therefore you are _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/nanog@lists.nanog.org/message/2ELNADG…

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Where else do you hangout?
by Mark Prosser 26 Aug '25

26 Aug '25

I was chatting with some industry colleagues recently and I realized that various sectors of our industry are not "online" in the spaces I'm online. Perhaps there was a time when most of us were on mailing lists & IRC, but now the communities seem fragmented and behind walled gardens (Mainly Discord and Slack .. the latter is deleting our messages faster and faster). Personally, I'm subscribed to several discord groups (including NANOG), several slack groups, a few mailing lists, IRC (I'm not on that often these days), one or two Matrix groups, IETF Zulip... This quickly becomes cumbersome and I find myself mainly in Packet Pushers & NAF Slack groups -- while being "reachable" in other places. I feel like I'm missing out on conversations outside of the few bubbles I participate in. Where do you spend most of your time, outside of this mailing list? Why do you like it there? What kind of folks hangout there? Warm regards, -- Mark Prosser // E: mark(a)zealnetworks.ca // W: https://zealnetworks.ca

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Digital Element, Neustar (Transunion) & ipinsight.io
by Mike Lyon 25 Aug '25

25 Aug '25

One would think that if you are in the business of selling data, specifically, location data, that you would have a link on your website for people to contact you in regards to updating that data so that the data you are selling is accurate data. Or do you prefer to sell inaccurate data or do you just not care about the accuracy of your product? Anyways, i’ll get off of my soap box… ***ATTENTION*** Digital Element, Neustar and ipinsight.io folks…. How does one report to you inaccurate geolocation data? Anyone on list that could possibly help a brother out? Thank You, Mike

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Having Geo-IP issues in the past week or so? Digital Elements wet the bed…
by Mike Lyon 24 Aug '25

24 Aug '25

If any eyeball networks are having geo-ip issues that started a week or so ago for their customers trying to use HBO, Hulu, Netflix or any others that use Digital Elements for their geo-ip, be sure you make Digital Elements aware. Digital Elements ran a process update last week that screwed up a bunch of netblocks. See ticket verbatim below. And to top it off, they are holding my customers hostage until a week from today when they run the corrective update. Hi Mike, While refining our processes to improve accuracy, some of our changes inadvertently over-corrected existing updates we had in place. We have noticed these and are correcting them currently. This unfortunately was one of the overridden updates. Thank you. Mike Lyon Aug 22, 2025, 11:00 AM EDT Do we know why it changed? On Aug 22, 2025, at 05:03, Data Management <ip-data(a)digitalenvoy.net> wrote: *redacted* (Digital Element) Aug 22, 2025, 8:03 AM EDT Hi Mike, We apologize for the inconvenience. We will update this IP range back to the US for our release next Friday, August 29. Thank you. ———————— Fun times… -Mike

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Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 22 Aug '25

22 Aug '25

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 23 Aug, 2025 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: 996855 Prefixes after maximum aggregation (per Origin AS): 387170 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 492052 Number of IPv4 prefixes with a valid ROA: 559960 Number of IPv4 prefixes with an invalid ROA: 1195 Number of IPv4 prefixes with no ROA: 435700 Total ASes present in the Internet Routing Table: 77315 Prefixes per ASN: 12.89 Origin-only ASes present in the Internet Routing Table: 66147 Origin ASes announcing only one prefix: 27043 Transit ASes present in the Internet Routing Table: 11168 Transit-only ASes present in the Internet Routing Table: 563 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 59 Max AS path prepend of ASN ( 37447) 54 Prefixes from unregistered ASNs in the Routing Table: 1062 Number of instances of unregistered ASNs: 1100 Number of 32-bit ASNs allocated by the RIRs: 47254 Number of 32-bit ASNs visible in the Routing Table: 38874 Prefixes from 32-bit ASNs in the Routing Table: 208721 Number of bogon 32-bit ASNs visible in the Routing Table: 101 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 429 Number of addresses announced to Internet: 3107437184 Equivalent to 185 /8s, 55 /16s and 186 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 325111 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 266044 Total APNIC prefixes after maximum aggregation: 79297 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 256536 Unique aggregates announced from the APNIC address blocks: 105255 APNIC Region origin ASes present in the Internet Routing Table: 14826 APNIC Prefixes per ASN: 17.30 APNIC Region origin ASes announcing only one prefix: 4529 APNIC Region transit ASes present in the Internet Routing Table: 1988 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10340 Number of APNIC addresses announced to Internet: 750478848 Equivalent to 44 /8s, 187 /16s and 102 /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: 292382 Total ARIN prefixes after maximum aggregation: 133085 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 294134 Unique aggregates announced from the ARIN address blocks: 142112 ARIN Region origin ASes present in the Internet Routing Table: 19293 ARIN Prefixes per ASN: 15.25 ARIN Region origin ASes announcing only one prefix: 7054 ARIN Region transit ASes present in the Internet Routing Table: 2002 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5301 Number of ARIN addresses announced to Internet: 1349029888 Equivalent to 80 /8s, 104 /16s and 144 /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: 278008 Total RIPE prefixes after maximum aggregation: 137148 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 277172 Unique aggregates announced from the RIPE address blocks: 179210 RIPE Region origin ASes present in the Internet Routing Table: 29048 RIPE Prefixes per ASN: 9.54 RIPE Region origin ASes announcing only one prefix: 12098 RIPE Region transit ASes present in the Internet Routing Table: 4030 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 49 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12670 Number of RIPE addresses announced to Internet: 732367232 Equivalent to 43 /8s, 167 /16s and 9 /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: 124554 Total LACNIC prefixes after maximum aggregation: 30140 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 120783 Unique aggregates announced from the LACNIC address blocks: 49322 LACNIC Region origin ASes present in the Internet Routing Table: 11280 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2649 LACNIC Region transit ASes present in the Internet Routing Table: 2559 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9246 Number of LACNIC addresses announced to Internet: 170809856 Equivalent to 10 /8s, 46 /16s and 90 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 34805 Total AfriNIC prefixes after maximum aggregation: 6788 AfriNIC Deaggregation factor: 5.13 Prefixes being announced from the AfriNIC address blocks: 47801 Unique aggregates announced from the AfriNIC address blocks: 15776 AfriNIC Region origin ASes present in the Internet Routing Table: 1954 AfriNIC Prefixes per ASN: 24.46 AfriNIC Region origin ASes announcing only one prefix: 713 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 59 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1317 Number of AfriNIC addresses announced to Internet: 104509952 Equivalent to 6 /8s, 58 /16s and 178 /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 12986 8762 117 CHINAMOBILE-CN China Mobile Communication 7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4804 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3939 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3658 1043 70 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3305 1869 101 VNPT-AS-VN VNPT Corp, VN 56046 2977 812 181 CMNET-JIANGSU-AP China Mobile communicati 24560 2923 865 503 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2291 11517 589 KIXS-AS-KR Korea Telecom, KR 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 13961 40848 5362 AMAZON-02, US 11492 4742 314 779 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 6327 3649 1320 82 SHAW, CA 22773 3332 3030 159 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 396982 3219 3857 437 GOOGLE-CLOUD-PLATFORM, US 174 3190 8759 844 COGENT-174, US 4155 2954 230 1747 USDA-1, US 16625 2912 1230 2167 AKAMAI-AS, 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 7539 1711 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3909 3395 127 AKAMAI-ASN1, NL 9009 3868 366 2188 M247, RO 12389 3122 2315 868 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2404 361 585 TELLCOM-AS, TR 212238 2335 166 1703 CDNEXT, GB 203020 1795 220 827 HOSTROYALE, IN 13188 1606 100 34 TRIOLAN, UA 8452 1601 1852 14 TE-AS TE-AS, EG 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 12277 3270 570 UNINET, MX 10620 3483 472 1054 Telmex Colombia S.A., CO 13999 2527 511 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1369 2432 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1227 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1182 371 22 Telefonica del Peru S.A.A., PE 22884 1054 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1019 2487 55 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 1770 660 28 RAYA-AS, EG 29571 1499 94 32 ORANGE-COTE-IVOIRE, CI 36992 1420 1495 374 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 24863 1241 389 20 LINKdotNET-AS, EG 37069 1085 1096 13 MOBINIL, EG 36935 991 523 46 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 563 82 3 KENET-AS, KE 15399 543 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 13961 40848 5362 AMAZON-02, US 9808 12986 8762 117 CHINAMOBILE-CN China Mobile Communication 8151 12277 3270 570 UNINET, MX 12479 7539 1711 150 UNI2-AS, ES 7545 6139 838 616 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4804 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4742 314 779 CABLEONE, US 9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN 7552 3939 1332 27 VIETEL-AS-AP Viettel Group, VN Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12986 12869 CHINAMOBILE-CN China Mobile Communications Grou 8151 12277 11707 UNINET, MX 12479 7539 7389 UNI2-AS, ES 7545 6139 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 4538 4804 4728 ERX-CERNET-BKB China Education and Research Net 9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN 11492 4742 3963 CABLEONE, US 7552 3939 3912 VIETEL-AS-AP Viettel Group, VN 20940 3909 3782 AKAMAI-ASN1, NL 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 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 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, US Complete listing at https://thyme.apnic.net/current/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 21859 ZEN-ECN, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /10:41 /11:92 /12:298 /13:578 /14:1199 /15:2128 /16:13785 /17:8278 /18:13555 /19:24797 /20:44862 /21:52364 /22:112578 /23:103197 /24:618281 /25:792 /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 12479 6500 7539 UNI2-AS, ES 8151 6486 12277 UNINET, MX 11492 3555 4742 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3445 3649 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2492 3332 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2372 13961 AMAZON-02, US 30036 2315 2658 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2203 3483 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1775 2:1512 3:920 4:10 5:4749 6:158 7:6 8:1567 9:3 11:172 12:1256 13:476 14:2634 15:384 16:285 17:380 18:900 20:564 21:4 22:188 23:7826 24:2658 25:2 27:2757 29:19 31:3369 32:32 33:1 34:81 35:263 36:4292 37:4575 38:9260 39:986 40:261 41:4240 42:939 43:2687 44:378 45:18820 46:5107 47:341 49:1968 50:2059 51:592 52:1560 54:335 55:1112 56:11 57:288 58:2160 59:1341 60:1179 61:2873 62:3022 63:1783 64:5600 65:2145 66:4816 67:3095 68:1071 69:3901 70:1039 71:631 72:2859 74:2810 75:1506 76:606 77:2783 78:1894 79:1735 80:2245 81:2086 82:3247 83:1449 84:1922 85:3480 86:1126 87:2387 88:1318 89:4474 90:776 91:8411 92:2758 93:2973 94:4146 95:4438 96:1445 97:311 98:953 99:705 100:71 101:1218 102:3904 103:32273 104:5291 105:765 106:876 107:2648 108:1272 109:4195 110:2247 111:3648 112:2478 113:1604 114:1977 115:2160 116:2066 117:2702 118:2520 119:1949 120:2228 121:1383 122:2828 123:2229 124:1729 125:2917 126:91 128:1588 129:970 130:1300 131:2062 132:784 133:460 134:1617 135:357 136:1478 137:1175 138:2830 139:1596 140:1611 141:1537 142:1917 143:1995 144:1206 145:587 146:2187 147:2103 148:2711 149:3014 150:1253 151:2377 152:2113 153:568 154:7394 155:1921 156:3304 157:1951 158:1390 159:2545 160:3593 161:1920 162:3902 163:2275 164:1885 165:2494 166:1553 167:2058 168:3887 169:767 170:5244 171:997 172:4248 173:3416 174:906 175:1316 176:3788 177:4802 178:3987 179:2323 180:2589 181:4178 182:3607 183:2029 184:2069 185:21630 186:5326 187:4596 188:4298 189:4363 190:9419 191:1542 192:11367 193:9482 194:7807 195:5650 196:3301 197:3227 198:6248 199:8648 200:8214 201:6364 202:10621 203:10602 204:4600 205:3671 206:4527 207:3642 208:4286 209:5181 210:4922 211:2739 212:4628 213:3835 214:1041 215:51 216:6793 217:3299 218:1489 219:565 220:2139 221:1209 222:868 223:2827 End of report

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** Sneak Peek at N95 Agenda! + More
by Nanog News 22 Aug '25

22 Aug '25

*** Sneak Peek at N95 Agenda!* ------------------------------------------------------------ *Submit by Sept. 8 + Explore Confirmed Talks Today!* Catch a sneak preview of what's to come for our upcoming conference, NANOG 95 (Oct.27-29). Scroll to the bottom of the overview webpage to see confirmed talks. *VIEW NOW* (https://nanog.org/events/nanog-95/) *** “What I Wished I Knew Before Attending NANOG”* ------------------------------------------------------------ *Community Shares Insight on How to be Successful at a NANOG Conference* Even veteran network operators can find their first NANOG intimidating. We tapped our community for advice on making it easier, and more rewarding. *READ MORE* ( https://nanog.org/stories/articles/what-i-wished-i-knew-before-attending-na… ) *** Beer N' Gear Sponsorships Available!* ------------------------------------------------------------ Special Perk for Beer ’N Gear Sponsors 🍻✨ Planning to sponsor Beer ’n Gear at NANOG 95? All BnG sponsors receive complimentary use of a private meeting room for a half-day in Arlington. It’s the perfect way to connect with clients, partners, and colleagues during the conference. *EMAIL NOW* (sponsorship(a)nanog.org) *** Video of the Week—NANOG 94 Recap!* ------------------------------------------------------------ *Experience the Best of NANOG 94 – In Minutes!* Missed NANOG 94 (9-11 June, Denver, CO)? Whether you’re a longtime attendee or curious first-timer, this is your chance to see why NANOG conferences are the premier event for technologists. Watch now and get inspired for NANOG 95! *WATCH NOW* ( https://www.youtube.com/watch?v=qfD8ZPC6elE&list=PLO8DR5ZGla8gr-Hw8obs1A0wg… ) *** 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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