AS13876 — FIBER-64

AS13876 announces 17 IPv4 prefixes covering 25,088 addresses and 1 IPv6 prefixes.

About this network

Eighty neighbours, and more IPv6 prefixes than IPv4 ones, all carved out of a single parent.

What it's used for

• A fibre carrier. 24,832 addresses across 22 IPv4 prefixes, 37 IPv6 prefixes, and 80 observed BGP neighbours.

Notable

• Every IPv6 prefix begins 2607:8300, split into /44, /46, /47 and /48 pieces.
• Netnames include FIBER-64, FIBERLIGHT, and two carrier order numbers, GX-FRO2004544974 and GX-FRO2004544992.
• Those two differ by eighteen in their last digits, so they were issued from one counter.
• Other blocks belong to two different carriers under their own naming.
• Reverse names take the form ip254.29.204.67.fiberlight.net, the address reversed with a marker fused to the first octet.

Interesting

• Eighty adjacencies against twenty-five thousand addresses is the ratio that identifies a carrier rather than an access network. The addresses are incidental; the business is the interconnections.
• Splitting one IPv6 parent into 37 announcements undoes the main advantage of the larger address space, which was supposed to let a carrier announce one block and route the rest internally. Each piece costs a slot in every table that carries a full IPv6 view.
• Sequential order numbers in netnames make two unrelated ranges provably part of one purchase.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 38.253.112.0/23
• 64.186.129.0/24
• 64.186.130.0/23
• 64.186.132.0/22
• 64.186.136.0/21
• 66.102.224.0/20
• 67.204.0.0/20
• 67.204.16.0/24
• 67.204.18.0/23
• 67.204.20.0/22
• 67.204.24.0/21
• 158.41.16.0/21
• 159.63.128.0/20
• 159.63.144.0/22
• 159.63.149.0/24
• 159.63.150.0/24
• 207.138.104.0/22
• 2607:8300::/32

Upstream networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions

Downstream networks

• AS16574 Gtek Computers LLC
• AS22598 ALENCO COMMUNICATIONS, INC
• AS36105 Big Bend Telephone Company, Inc.
• AS63483 Skynet
• AS46719 COMCELL INC.
• AS401486 RAVNIX LLC
• AS10392 New Source Broadband
• AS6620 AMA Communications, LLC
• AS393964 High Mountain Farm, LLC
• AS11238 NetWest Online, Inc.
• AS397293 Victoria Electric Cooperative
• AS22353 Taylor Telephone Cooperative, Inc.
• AS399060 BEC Communications, LLC
• AS17064 TISD, Inc.
• AS62560 Hosted America
• AS36695 Region 5 Education Service Center
• AS16857 Central Texas Telecommunications
• AS33296 Piedmont Broadband Corporation
• AS62893 Fiber Wave, LLC
• AS400595 281 Communications Corporation Inc.
• AS15025 City of Bartow
• AS14106 Taylor Electric Cooperative Inc
• AS17073 Allegis Group
• AS16860 HealthPlan Services, Inc.
• AS39974 Altitude ISP LLC

Adjacent networks

• AS1299 Arelion Sweden AB
• AS16574 Gtek Computers LLC
• AS3257 GTT Communications Inc.
• AS22598 ALENCO COMMUNICATIONS, INC
• AS36105 Big Bend Telephone Company, Inc.
• AS63483 Skynet
• AS401486 RAVNIX LLC
• AS46719 COMCELL INC.
• AS2914 NTT America, Inc.
• AS10392 New Source Broadband
• AS6620 AMA Communications, LLC
• AS6939 Hurricane Electric LLC
• AS393964 High Mountain Farm, LLC
• AS3356 Level 3 Parent, LLC
• AS16857 Central Texas Telecommunications
• AS11238 NetWest Online, Inc.
• AS397293 Victoria Electric Cooperative
• AS22353 Taylor Telephone Cooperative, Inc.
• AS399060 BEC Communications, LLC
• AS17064 TISD, Inc.
• AS36695 Region 5 Education Service Center
• AS62560 Hosted America
• AS33296 Piedmont Broadband Corporation
• AS62893 Fiber Wave, LLC
• AS400595 281 Communications Corporation Inc.

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Tampa Internet Exchange — Tampa, United States