Home ASN LookupAS13536

AS13536 TVC-AS1 - FirstLight Fiber, Inc.

🇺🇸

ARINassigned

Announced Prefixes (BGP)

132total

121 IPv411 IPv6

IPv4 Addresses

Allocated (RIR)238,080

Announced (BGP)340,480

IPv6 Addresses

Allocated (RIR)2.3×10²⁹

Announced (BGP)2.3×10²⁹

Prefix Limit (IPv4)

500

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

1999-06-30

Routing hygiene

Score 29/100 · Medium risk

RPKI ROA coverage

44.7%

no RPKI invalid prefixes

IRR route objects

92.4%

6 prefixes registered for another origin

Hijack signals

0 announced against others' ROAs, 2 own announced by others

Upstreams

diversity 21/100

55% of announced prefixes (73 of 132) have no valid ROA
Routes concentrated on one upstream (89% of routes)
2 prefixes registered in IRR route objects for another active network and not authorized by a ROA

Based on 132 announced prefixes, updated daily (2026-10-21). How the score works · RPKI explained

Announced Prefixes

(BGP)132

Prefix	RPKI	IRR	Last Seen
23.142.120.0/24	No ROA	ARIN	-
38.56.64.0/22	No ROA	Other IRR	-
38.147.194.0/24MOAS	No ROA	Other IRR	-
38.147.195.0/24MOAS	No ROA	Other IRR	-
38.147.196.0/24MOAS	No ROA	Other IRR	-
38.147.205.0/24MOAS	No ROA	Other IRR	-
64.25.208.0/20	Valid	ARIN	-
64.25.215.0/24	Valid	ARIN	-
64.25.218.0/23	Valid	ARIN	-
64.25.222.0/24	Valid	ARIN	-

1-10 of 132

1 / 14

Allocated Prefixes

(RIR)34

Prefix	Country	RIR	Status
64.25.208.0/20	🇺🇸 US	ARIN	allocated
66.109.32.0/19	🇺🇸 US	ARIN	allocated
66.152.96.0/20	🇺🇸 US	ARIN	allocated
66.211.128.0/19	🇺🇸 US	ARIN	allocated
67.217.112.0/20	🇺🇸 US	ARIN	allocated
68.70.48.0/20	🇺🇸 US	ARIN	allocated
69.24.0.0/20	🇺🇸 US	ARIN	allocated
72.0.128.0/19	🇺🇸 US	ARIN	allocated
143.66.0.0/16	🇺🇸 US	ARIN	allocated
143.67.0.0/16	🇺🇸 US	ARIN	allocated

1-10 of 34

1 / 4

All 132 announced prefixes of AS13536 →

Downstream Customers(5)

ASN	Name
AS7150	🇺🇸CUPANET-BLM-AS - Commonwealth University of Pennsylvania
AS393819	🇺🇸LACKAWANNA-COUNTY - Lackawanna County Government
AS394712	🇺🇸NYSOSC - New York State Office of the State Comptroller
AS395144	🇺🇸INDY-ASN-01 - Independent Connections LLC
AS402749	🇺🇸CORE42-US - CORE42

BGP Neighbours

(seen in AS paths)

Upstreams (4)

Networks AS13536 hands its own prefixes to: transit providers, or peers at an exchange.

AS3770FirstLight Fiber117
AS3257GTT BACKBONE GTT Communications7
AS1299TWELVE99 Arelion Sweden AB5
AS174Cogent Communications3

Downstreams (100 of 158)

Networks whose own prefixes AS13536 passes on: usually its customers.

AS21547FirstLight Fiber63
AS14477FirstLight Fiber51
AS397733New York State Education Department47
AS398576Premium Choice Broadband33
AS40898Otsego Electric Cooperative24
AS26385The University Of Vermont Medical Center19
AS14877FirstLight Fiber18
AS29968Dunkirk & Fredonia Telephone Company18
AS62989Indiana University Of Pennsylvania14
AS33422New England Telehealth Consortium13
AS26438Monroe Community College12
AS27382FirstLight Fiber12
AS54086Single Digits12
AS400469CLAVERACK COMMUNICATIONS12
AS398564Pennsylvania Western University11
AS398813Millersville University Of Pennsylvania11
AS399220Finger Lakes Communications Group11
AS395577Ithaca College10
AS18697GREEN MOUNTAIN POWER CORPORATION9
AS54989DUNCAN TELECOMMUNICATIONS8
AS63009Fibercast Corporation8
AS397913East Stroudsburg University Of Pennsylvania8
AS26Cornell University7
AS557University Of Maine System7
AS33247COASTAL TELCO SERVICES7
AS7150Commonwealth University Of Pennsylvania6
AS5738FirstLight Fiber5
AS15320FirstLight Fiber5
AS22990University At Albany, State University Of New York5
AS26724The North Eastern Pennsylvania Telephone Company5
AS398537Kutztown University5
AS398643Slippery Rock University Of Pennsylvania5
AS26082Power Shift Computer Services4
AS332032CRSI Corporation4
AS393819Lackawanna County Government4
AS394830Massivemesh4
AS396971Slic Network Solutions4
AS398655Pennsylvania Western University4
AS398774Pennsylvania Western University4
AS10249RedZone Wireless3
AS10367Fibercast Corporation3
AS11577Vermont Agency Of Digital Services3
AS11847GoNetSpeed3
AS12055Clearbearing3
AS19704Howard Center3
AS22935Wayne Finger Lakes BOCES3
AS25935Erie 1 BOCES3
AS31789ICON Technologies3
AS36645Genuity Networks3
AS53585The State Insurance Fund3
AS398879Susquehanna Broadband3
AS1974Southern Maine Medical Center2
AS4190Binghamton University2
AS7133New York Independent System Operator2
AS11357InfoQuest Technologies2
AS13513Alfred University2
AS14635Vermont Student Assistance Corporation2
AS16384St Michael'S College2
AS18694Sappi Fine Paper North America2
AS19999Union College2
AS26707North Shore Networks2
AS27507Xtreme Internet2
AS36279Misericordia University2
AS36767Hearst Argyle Television2
AS40762Nysys Wireless2
AS53784Southern New Hampshire Health System2
AS62929FirstLight Fiber2
AS394451Elliot Health System2
AS395381CTC Internet2
AS397398Brewster Academy2
AS397625Tessy Plastics2
AS398191Tri Connections2
AS398850Cheyney University Of Pennsylvania2
AS399700Mansfield Community Fiber2
AS401728First Commonwealth Federal Credit Union2
AS402216Town To Farm Fiber2
AS91Rensselaer Polytechnic Institute1
AS901Frontier Science And Technology Research Foundation1
AS6056Colby College1
AS10755Dartmouth College1
AS10882Clarity Connect1
AS11076COMMUNITY COMPUTER SERVICE1
AS13685Rochester City School District1
AS14424A.N. Deringer1
AS14550Middlebury College1
AS14696GLOBALFOUNDRIES U.S1
AS15049Tompkins County1
AS16404Albright College1
AS16434Hitachi Cable Manchester1
AS16655Hartwick College1
AS16938Excelsior College1
AS16956Cattaraugus County1
AS17247The Times Union1
AS18578Schluter Systems L.P1
AS19368Thrive Operations1
AS19389GOLUB CORPORATION1
AS19713State Of New Hampshire1
AS19722Niagara Frontier Transportation Authority1
AS19802The Lane Press1
AS21752Albany County Pine Hills Land Authority1

Other adjacent networks (6)

Adjacent to AS13536 in the transit part of AS paths: peers, providers or customers.

AS37468Angola Cables Angola Cables21
AS13030INIT7 (Switzerland)9
AS8966Etisalat EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC3
AS33891CORE BACKBONE Core Backbone2
AS6939Hurricane Electric1
AS24482SG.GS1

Transfer History

Registry transfers of AS13536 between organisations.

AS13536M&A · 2026-04-22
FirstLight Fiber, Inc.
🇺🇸 US ARIN
→
FirstLight Networks, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-04-22	AS13536	FirstLight Fiber, Inc. 🇺🇸 US ARIN	FirstLight Networks, LLC 🇺🇸 US ARIN	M&A

ASPA

No ASPA0 upstreams, 5 downstreams

Listed as Upstream Provider by

5 ASNs

View full ASPA details →

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/13536

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/13536" | jq