April 2025 - NANOG - lists.nanog.org

[NANOG] azure ipv6 bgp
by Jared Mauch 10 Apr '25

10 Apr '25

Can someone ping me off-list. -- Jared Mauch | pgp key available via finger from jared(a)puck.nether.net clue++; | http://puck.nether.net/~jared/ My statements are only mine.

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[NANOG] question about peering relationships
by Sriram, Kotikalapudi (Fed) 10 Apr '25

10 Apr '25

Does the following ever happen in reality? Do you think it is strange and unlikely? The lateral (i.e., non-transit) peer of an AS is also the transit provider of the AS's transit provider. Example: AS A has AS B as a transit provider and AS C as a lateral peer, and AS C is a transit provider of AS B. Thank you. Sriram

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[NANOG] Spoofer Report for NANOG for Mar 2025
by CAIDA Spoofer Project 08 Apr '25

08 Apr '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within usa, can. Inferred improvements during Mar 2025: ASN Name Fixed-By 215672 2025-03-07 30083 AS-30083-GO-DADDY-COM-LLC 2025-03-10 13807 GREAT-PLAINS-COMMUNICATIONS 2025-03-10 3701 NERONET 2025-03-13 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Mar 2025: ASN Name First-Spoofed Last-Spoofed 3356 LEVEL3 2016-03-06 2025-03-11 40065 CNSERVERS 2016-05-01 2025-03-10 40676 AS40676 2016-08-29 2025-03-31 27364 ACS-INTERNET 2016-09-27 2025-03-25 174 COGENT-174 2016-10-21 2025-03-04 63296 AWBROADBAND 2017-09-01 2025-03-28 21804 ACCESS-SK 2019-06-09 2025-03-31 4134 CHINANET-BACKBONE 2021-05-12 2025-03-03 32035 CCDT 2021-06-09 2025-03-31 12183 TALKIE-COMMUNICATIONS 2022-12-10 2025-03-31 400282 2023-04-27 2025-03-26 393577 SCCNET 2023-05-03 2025-03-25 202400 2023-05-08 2025-03-18 61461 Airtek Solutions C.A. 2023-05-13 2025-03-31 268207 RVT Serviços de Telecomunica� 2023-09-04 2025-03-28 20119 ARROW 2023-10-19 2025-03-28 394684 WISPERNET 2024-01-17 2025-03-27 19935 CRRS 2024-05-29 2025-03-26 3801 MISNET 2024-09-09 2025-03-25 273143 2025-01-22 2025-03-22 269946 2025-02-09 2025-03-09 215672 2025-02-15 2025-03-07 18474 AENEAS-CWUS 2025-03-03 2025-03-03 30162 ETHOPLEX 2025-03-08 2025-03-08 54334 ROYA 2025-03-13 2025-03-13 16739 MIDCO-NET-INV 2025-03-19 2025-03-30 12097 MASSCOM 2025-03-25 2025-03-25 138915 KAOPU-HK 2025-03-30 2025-03-30 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=usa,can&no_block… Please send any feedback or suggestions to spoofer-info(a)caida.org

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[NANOG] DZS - ZMS
by Mike Hammett 07 Apr '25

07 Apr '25

Given DZS filing chapter 7, I doubt I'll get much support asking the company itself. Does anyone know if ZMS (or the OLT) carries historical information about ONU statuses? I have a current ONU status, but no idea when it was set, if it's changed, etc. I just found out that my recent upgrade of my monitoring server resulted in the syslog package being uninstalled, so I had to reinstall it... of course losing all syslog messages from when until now. ----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com

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[NANOG] Outages List AND NTP Pool down
by Andy Ringsmuth 07 Apr '25

07 Apr '25

Hard to report an outage to the Outages list when it’s dead… Anyway, the Outages list is dead at the moment. And likely all the lists hosted at puck.nether.net <http://puck.nether.net/>. Additionally, the primary web site for the NTP Pool, run by Bjorn Ask, is down. The pool itself seems functional for NTP purposes, but the web interface is dead. ---- Andy Ringsmuth 5609 Harding Drive Lincoln, NE 68521-5831 (402) 202-1230 andy(a)andyring.com

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[NANOG] How can the IP spoofing problem be solved within a country?
by T. Fırıncı 07 Apr '25

07 Apr '25

Hello I am Taygun, I am a 23 year old who has been working in cyber security and information technologies as a hobby for about 13 years. There are countless people and institutions that have been victims of IP spoofing attacks that have increased recently in my country (Turkey). I started researching to find a solution to this problem and offer a solution to the ISPs and the IT institutions in my country. After brainstorming in the TRNOG group in Türkiye and on LinkedIn, such as NANOG, I thought that bcp38 could be a solution, but some people said that this solution would create a problem in multihome networks. What is the exact optimum solution? Where should I look? How can I create a plan that can be presented to the necessary places? Currently, all existing or old ISPs and datacenters in Türkiye have completely lost hope in resolving the problem. References: https://www.linkedin.com/posts/taygun-firinci_son-zamanlarda-servis-sa%C4%9… https://spoofer.caida.org/recent_tests.php?as_include=&country_include=tur&… Best Practices for Deploying SAV: https://manrs.org/2023/04/why-is-source-address-validation-still-a-problem/

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[NANOG] Weekly Global IPv4 Routing Table Report
by Routing Table Analysis Role Account 04 Apr '25

04 Apr '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 05 Apr, 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: 979261 Prefixes after maximum aggregation (per Origin AS): 375908 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476503 Number of IPv4 prefixes with a valid ROA: 533908 Number of IPv4 prefixes with an invalid ROA: 1292 Number of IPv4 prefixes with no ROA: 444061 Total ASes present in the Internet Routing Table: 76787 Prefixes per ASN: 12.75 Origin-only ASes present in the Internet Routing Table: 65750 Origin ASes announcing only one prefix: 26889 Transit ASes present in the Internet Routing Table: 11037 Transit-only ASes present in the Internet Routing Table: 555 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 65 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1021 Number of instances of unregistered ASNs: 1025 Number of 32-bit ASNs allocated by the RIRs: 46158 Number of 32-bit ASNs visible in the Routing Table: 38073 Prefixes from 32-bit ASNs in the Routing Table: 200642 Number of bogon 32-bit ASNs visible in the Routing Table: 30 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 466 Number of addresses announced to Internet: 3108199552 Equivalent to 185 /8s, 67 /16s and 92 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 321721 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256999 Total APNIC prefixes after maximum aggregation: 77112 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 248712 Unique aggregates announced from the APNIC address blocks: 102737 APNIC Region origin ASes present in the Internet Routing Table: 14597 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4450 APNIC Region transit ASes present in the Internet Routing Table: 1962 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 56 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10077 Number of APNIC addresses announced to Internet: 749449984 Equivalent to 44 /8s, 171 /16s and 179 /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: 289070 Total ARIN prefixes after maximum aggregation: 128961 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 290134 Unique aggregates announced from the ARIN address blocks: 137245 ARIN Region origin ASes present in the Internet Routing Table: 19242 ARIN Prefixes per ASN: 15.08 ARIN Region origin ASes announcing only one prefix: 7029 ARIN Region transit ASes present in the Internet Routing Table: 1987 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5179 Number of ARIN addresses announced to Internet: 1349946624 Equivalent to 80 /8s, 118 /16s and 141 /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: 273284 Total RIPE prefixes after maximum aggregation: 133176 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 271121 Unique aggregates announced from the RIPE address blocks: 173673 RIPE Region origin ASes present in the Internet Routing Table: 28885 RIPE Prefixes per ASN: 9.39 RIPE Region origin ASes announcing only one prefix: 12058 RIPE Region transit ASes present in the Internet Routing Table: 4000 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12363 Number of RIPE addresses announced to Internet: 731872896 Equivalent to 43 /8s, 159 /16s and 126 /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: 123782 Total LACNIC prefixes after maximum aggregation: 29271 LACNIC Deaggregation factor: 4.23 Prefixes being announced from the LACNIC address blocks: 120435 Unique aggregates announced from the LACNIC address blocks: 48802 LACNIC Region origin ASes present in the Internet Routing Table: 11227 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2502 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9181 Number of LACNIC addresses announced to Internet: 171747584 Equivalent to 10 /8s, 60 /16s and 169 /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: 35105 Total AfriNIC prefixes after maximum aggregation: 6755 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 48393 Unique aggregates announced from the AfriNIC address blocks: 13648 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.36 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 380 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273 Number of AfriNIC addresses announced to Internet: 104943872 Equivalent to 6 /8s, 65 /16s and 81 /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 10316 8754 94 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4298 530 278 BBIL-AP BHARTI Airtel Ltd., IN 7552 3915 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3276 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2851 849 538 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2375 11522 618 KIXS-AS-KR Korea Telecom, KR 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 12997 39643 3951 AMAZON-02, US 11492 4686 311 585 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 6327 3622 1320 81 SHAW, CA 174 3543 8765 949 COGENT-174, US 22773 3398 3033 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 3030 1270 2223 AKAMAI-AS, US 396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2619 216 797 AS-COLOCROSSING, 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 7712 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3938 3395 130 AKAMAI-ASN1, NL 9009 3768 326 1960 M247, RO 12389 3082 2303 896 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2084 148 1535 CDNEXT, GB 8452 1615 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1492 98 750 CLOUVIDER Clouvider - Global ASN, GB 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 11911 3244 585 UNINET, MX 10620 3526 487 971 Telmex Colombia S.A., CO 13999 2511 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1174 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1043 374 163 Axtel, S.A.B. de C.V., MX 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 1703 599 30 RAYA-AS, EG 24863 1631 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 915 1083 15 MOBINIL, EG 6713 562 1861 35 IAM-AS, MA 36914 545 82 3 KENET-AS, 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 12997 39643 3951 AMAZON-02, US 8151 11911 3244 585 UNINET, MX 9808 10316 8754 94 CHINAMOBILE-CN China Mobile Communication 12479 7712 1714 145 UNI2-AS, ES 7545 6215 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear 11492 4686 311 585 CABLEONE, US 9498 4298 530 278 BBIL-AP BHARTI Airtel Ltd., IN 20940 3938 3395 130 AKAMAI-ASN1, NL Complete listing at https://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11911 11326 UNINET, MX 9808 10316 10222 CHINAMOBILE-CN China Mobile Communications Grou 12479 7712 7567 UNI2-AS, ES 7545 6215 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 4538 4780 4704 ERX-CERNET-BKB China Education and Research Net 11492 4686 4101 CABLEONE, US 9498 4298 4020 BBIL-AP BHARTI Airtel Ltd., IN 7552 3915 3889 VIETEL-AS-AP Viettel Group, VN 20940 3938 3808 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 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: 6939 HURRICANE, 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:16 /10:41 /11:93 /12:302 /13:580 /14:1218 /15:2143 /16:13940 /17:8347 /18:13822 /19:24853 /20:44569 /21:52245 /22:112476 /23:101654 /24:602147 /25:799 /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 6637 7712 UNI2-AS, ES 8151 6114 11911 UNINET, MX 11492 3531 4686 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2535 3398 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2337 12997 AMAZON-02, US 30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3526 Telmex Colombia S.A., CO Complete listing at https://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1697 2:1527 3:613 4:10 5:4567 6:163 7:6 8:1552 9:1 11:172 12:1372 13:351 14:2550 15:351 16:279 17:363 18:918 20:470 21:4 22:188 23:7344 24:2834 25:2 27:2668 29:19 31:3223 32:40 34:80 35:205 36:2412 37:4681 38:8932 39:899 40:154 41:4207 42:949 43:2543 44:364 45:18480 46:4935 47:291 49:1969 50:1903 51:591 52:1551 54:300 55:877 56:11 57:250 58:2133 59:1340 60:1171 61:2793 62:2909 63:1839 64:5492 65:2175 66:4648 67:3056 68:1107 69:3983 70:1071 71:612 72:2841 74:2808 75:1608 76:616 77:2707 78:1876 79:1729 80:2211 81:2017 82:3116 83:1421 84:1840 85:3401 86:1043 87:2403 88:1282 89:4319 90:775 91:8317 92:2800 93:2877 94:4061 95:4289 96:1434 97:312 98:993 99:641 100:71 101:1169 102:3718 103:32200 104:4796 105:750 106:995 107:2611 108:1210 109:4103 110:2233 111:3331 112:2043 113:1535 114:1970 115:2102 116:2041 117:2737 118:2451 119:1927 120:1890 121:1416 122:2761 123:2171 124:1616 125:2886 126:91 128:1569 129:965 130:1276 131:1896 132:783 133:451 134:1529 135:330 136:1302 137:1159 138:2898 139:1607 140:1580 141:1490 142:1837 143:1647 144:1069 145:514 146:2162 147:2101 148:2649 149:2902 150:1246 151:1743 152:2104 153:503 154:7918 155:1630 156:3197 157:1889 158:1272 159:2433 160:3544 161:1890 162:3704 163:1976 164:1701 165:2207 166:1438 167:1875 168:4028 169:792 170:5087 171:1002 172:4474 173:3218 174:911 175:1287 176:3687 177:4729 178:3788 179:2294 180:2578 181:4053 182:3372 183:1809 184:2141 185:21492 186:5091 187:4429 188:4200 189:4162 190:9638 191:1477 192:11192 193:9426 194:7787 195:5518 196:3290 197:3684 198:6186 199:8425 200:8197 201:6296 202:10548 203:10541 204:4548 205:3679 206:4625 207:3559 208:4203 209:5195 210:4807 211:2637 212:4513 213:3768 214:1050 215:48 216:6593 217:3085 218:1383 219:538 220:2088 221:1071 222:844 223:2340 End of report

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[NANOG] N94 Hotel Block is Now Open! + Watch a "Most Viewed" N93 Talk
by Nanog News 03 Apr '25

03 Apr '25

*** N94 Hotel Block is Now Open!* ------------------------------------------------------------ *Standard Registration Rates will Continue through 11 May* Join us for NANOG 94 in Denver, CO, at the Sheraton Denver Downtown. The hotel block is now open, make your online reservations today. *LEARN MORE* <https://nanog.org/events/nanog-94/venue/>( https://nanog.org/events/nanog-94/venue/) *** Video of the Week!* ------------------------------------------------------------ *"Now You Can Too! Design-Driven Automation" w/ Wim Van Deun, Opsmill* In one of our most viewed videos from NANOG 93, Deun introduces Infrahub, a new open-source platform that enables infrastructure teams to build design-driven automation workflows. His presentation highlights how Infrahub integrates architecture and design into network automation, combining infrastructure strengths such as code and data management. *WATCH NOW* <https://www.youtube.com/watch?v=yXkDzQnRHd0&list=PLO8DR5ZGla8jiR9Jcl6CfeCti…> ( https://www.youtube.com/watch?v=yXkDzQnRHd0&list=PLO8DR5ZGla8jiR9Jcl6CfeCti… ) *** Network Lounge Sponsorship Available!* ------------------------------------------------------------ *Network Lounge Sponsorship Provides 24-Hour Brand Exposure* The Network Lounge Sponsorship provides 24-hour brand exposure in the open seating area—one of the busiest and most visited spaces at NANOG conferences. EMAIL SHAWN (mailto:SWinstead@nanog.org) *** 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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[NANOG] Downtown Los Angeles - Dark Fiber & DWDM Companies between buildings?
by Adam Brenner 02 Apr '25

02 Apr '25

Morning, I am looking for dark fiber companies who operate out of Downtown Los Angeles that can offer us dark fiber service between some of the major buildings. Looking for any feedback, good or bad, from any providers people have worked with in the past -- happy to chat on and off list. We want to connect from One Wilshire (624 S Grand Ave) to the Aon Building (707 Wilshire Blvd) -- about 500 feet line of sight / 1 city block. Thank you! /adam -- Adam Brenner

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[NANOG] List admin: filter old address?
by Chris Adams 02 Apr '25

02 Apr '25

There seem to be a number of replies that CC both the old and new list address, resulting in multiple copies of lots of messages. I can filter them at my end, but it'd be better to address that at the list server. -- Chris Adams <cma(a)cmadams.net>

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