AS21547

Name: AS21547 — FirstLight Networks, LLC
Creator: ipdex

FirstLight Networks, LLC Unknown registered in United States

54IPv4 prefixes

5IPv6 prefixes

44%RPKI-valid

#4,274AS Rank

#572Rank in United States

2001-05-21Allocated

FirstLight Networks, LLC (AS21547) — Unknown, registered in United States. announces 54 IPv4 prefixes + 5 IPv6 prefixes. Rank in United States: #572. Allocated: 2001-05-21.

IPv4 54IPv6 5

Announced prefixes · 59

v4 72.55.248.0/23 unknown
v4 72.55.254.0/23 unknown
v4 74.220.224.0/20 unknown
v4 74.220.236.0/24 unknown
v6 2001:4940:2001::/48 unknown
v6 2001:4940:2006::/48 unknown
v6 2001:4940:2007::/48 unknown
v6 2001:4940::/32 unknown
v6 2604:3f00::/32 unknown

RPKI: rpki.cloudflare.com · 2026-06-20

— Routing status unavailable

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	59
2026-06-13	59

AS topology · Customer cone 5

Providers · 1

AS13536 FirstLight Networks, LLC

Customers · 4

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AS36823 Martin's Point HealthCare
AS395342 Exeter Hospital

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