AS13536 — TVC-AS1

Network type: residential

AS13536 announces 102 IPv4 prefixes covering 316,160 addresses and 21 IPv6 prefixes.

About this network

A /15 whose registrant is the registry itself, announced alongside two colleges' own blocks.

What it's used for

• A regional fibre carrier. 315,648 addresses across 114 IPv4 prefixes, fifty-five IPv6 prefixes, and 227 observed BGP neighbours.

Notable

• 143.66.0.0/15 is netname NET143, registered to Various Registries (Maintained by ARIN).
• 150.155.0.0/16 is netname REV-CAYUGA, registered to a community college.
• 66.109.56.0/21 is registered to a college under a netname that is just its address.
• The carrier's own blocks are numbered FLNET-15, FLNET-16, FLNET-26, FLNET-31, FLNET-40, FLNET-45, FLNET-49 and FLNET-52.
• Sampled names are mostly 216-179-63-255.static.firstlight.net; one is isda01.routable.bestweb.net.

Interesting

• A registrant naming several registries collectively is early address space that predates modern ownership records. Nobody holds it in the modern sense; the registry maintains it because the original allocation structure no longer exists.
• The numbered FLNET series counts allocations rather than describing them, so the gaps between 15 and 52 are blocks that went elsewhere or were returned.
• One reverse name still answers under an acquired provider's domain with routable as a label, a distinction that mattered when a customer had to be told which of their addresses reached the internet.

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

Announced prefixes

• 23.142.120.0/24
• 38.56.64.0/22
• 38.147.194.0/23
• 38.147.196.0/24
• 38.147.205.0/24
• 64.25.208.0/22
• 64.25.212.0/24
• 64.25.215.0/24
• 64.25.216.0/22
• 64.25.220.0/24
• 64.25.222.0/23
• 64.140.210.0/24
• 64.140.244.0/24
• 66.44.224.0/24
• 66.109.32.0/19
• 66.152.96.0/20
• 66.152.127.0/24
• 66.186.167.0/24
• 66.231.206.0/23
• 66.231.216.0/24
• 67.217.112.0/21
• 67.217.120.0/22
• 68.70.53.0/24
• 68.70.58.0/24
• 69.24.0.0/20
• 72.0.128.0/19
• 72.12.83.0/24
• 72.15.1.0/24
• 72.55.246.0/24
• 98.159.209.0/24
• 108.171.33.0/24
• 108.171.34.0/23
• 108.171.36.0/23
• 108.171.38.0/24
• 108.171.41.0/24
• 108.171.42.0/24
• 108.171.44.0/24
• 108.171.46.0/23
• 108.171.56.0/24
• 108.171.58.0/24
• 108.171.62.0/24
• 136.223.33.0/24
• 136.223.37.0/24
• 143.66.0.0/15
• 150.155.0.0/16
• 167.150.16.0/24
• 167.244.212.0/23
• 167.244.247.0/24
• 173.243.160.0/20
• 192.76.175.0/24
• 192.103.144.0/24
• 192.149.109.0/24
• 192.245.19.0/24
• 192.245.20.0/22
• 198.17.169.0/24
• 198.22.44.0/24
• 198.102.1.0/24
• 198.102.2.0/23
• 198.168.32.0/23
• 198.168.38.0/23
• 198.181.253.0/24
• 199.249.159.0/24
• 199.254.253.0/24
• 204.27.229.0/24
• 204.87.211.0/24
• 205.166.42.0/24
• 206.84.88.0/22
• 206.128.107.0/24
• 206.128.108.0/24
• 206.128.110.0/24
• 207.136.194.0/24
• 207.136.245.0/24
• 207.136.247.0/24
• 207.136.250.0/24
• 208.82.79.0/24
• 209.94.98.0/23
• 209.94.100.0/22
• 209.94.104.0/21
• 209.94.112.0/20
• 209.107.204.0/24
• 209.198.66.0/24
• 209.198.70.0/24
• 209.198.82.0/24
• 209.198.93.0/24
• 216.59.64.0/22
• 216.59.68.0/24
• 216.59.70.0/24
• 216.59.72.0/21
• 216.59.88.0/21
• 216.107.192.0/19
• 216.107.224.0/20
• 216.114.146.0/24
• 216.114.157.0/24
• 216.114.158.0/24
• 216.114.184.0/23
• 216.130.239.0/24
• 216.179.0.0/17
• 216.238.160.0/24
• 216.238.162.0/23
• 216.238.164.0/22

and 23 more.

Upstream networks

• AS3770 FirstLight Fiber, Inc.
• AS1299 Arelion Sweden AB
• AS3257 GTT Communications Inc.
• AS174 Cogent Communications, LLC
• AS9002 RETN Limited
• AS24482 SG.GS
• AS6939 Hurricane Electric LLC
• AS3303 Swisscom (Schweiz) AG
• AS293 ESnet
• AS33891 Core-Backbone GmbH
• AS13030 Init7 (Switzerland) Ltd.

Downstream networks

• AS21547 FirstLight Fiber, Inc.
• AS14477 FirstLight Fiber, Inc.
• AS397733 New York State Education Department
• AS32508 Granite State Communications
• AS40898 Otsego Electric Cooperative, Inc.
• AS26385 The University of Vermont Medical Center Inc
• AS14877 FirstLight Fiber, Inc.
• AS29968 Dunkirk & Fredonia Telephone Company
• AS27382 FirstLight Fiber, Inc.
• AS62989 Indiana University of Pennsylvania
• AS54086 Single Digits, Inc.
• AS395577 Ithaca College
• AS26438 Monroe Community College
• AS399220 Finger Lakes Communications Group, Inc
• AS398564 Pennsylvania Western University
• AS33422 New England Telehealth Consortium
• AS54989 DUNCAN TELECOMMUNICATIONS LLC
• AS18697 GREEN MOUNTAIN POWER CORPORATION
• AS7150 Commonwealth University of Pennsylvania
• AS397913 East Stroudsburg University of Pennsylvania
• AS15320 FirstLight Fiber, Inc.
• AS5738 FirstLight Fiber, Inc.
• AS63009 Fibercast Corporation
• AS26082 Power Shift Computer Services, Inc.
• AS396971 Slic Network Solutions, Inc

Adjacent networks

• AS3770 FirstLight Fiber, Inc.
• AS1299 Arelion Sweden AB
• AS3257 GTT Communications Inc.
• AS21547 FirstLight Fiber, Inc.
• AS14477 FirstLight Fiber, Inc.
• AS174 Cogent Communications, LLC
• AS14877 FirstLight Fiber, Inc.
• AS397733 New York State Education Department
• AS6939 Hurricane Electric LLC
• AS32508 Granite State Communications
• AS40898 Otsego Electric Cooperative, Inc.
• AS26385 The University of Vermont Medical Center Inc
• AS29968 Dunkirk & Fredonia Telephone Company
• AS9002 RETN Limited
• AS399220 Finger Lakes Communications Group, Inc
• AS27382 FirstLight Fiber, Inc.
• AS33422 New England Telehealth Consortium
• AS24482 SG.GS
• AS62989 Indiana University of Pennsylvania
• AS54086 Single Digits, Inc.
• AS395577 Ithaca College
• AS26438 Monroe Community College
• AS398564 Pennsylvania Western University
• AS54989 DUNCAN TELECOMMUNICATIONS LLC
• AS18697 GREEN MOUNTAIN POWER CORPORATION

Internet exchanges

• DE-CIX New York — New York, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• Equinix Internet Exchange New York — New York, United States
• Boston Internet Exchange — Boston, United States
• Digital Realty New York Internet Exchange — New York, United States
• Massachusetts Internet Exchange — Boston, United States