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

325/325RIS visibility

#569Rank 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: #569. Allocated: 2001-05-21.

IPv4 54IPv6 5

Announced prefixes · 59

v4 140.165.50.0/24 unknown
v4 198.212.230.0/24 unknown
v4 63.127.192.0/21 unknown
v4 64.140.192.0/18 valid
v4 64.140.199.0/24 valid
v4 64.140.224.0/19 valid
v4 64.140.224.0/24 valid
v4 64.140.225.0/24 valid
v4 64.140.234.0/24 valid
v4 64.140.246.0/24 valid
v4 66.186.160.0/19 valid
v4 66.186.162.0/24 valid
v4 66.186.163.0/24 valid
v4 66.186.171.0/24 valid
v4 66.186.173.0/24 valid
v4 66.186.176.0/24 valid
v4 66.186.184.0/24 valid
v4 66.186.188.0/24 valid
v4 66.231.192.0/19 unknown
v4 66.231.192.0/24 unknown
v4 66.231.207.0/24 unknown
v4 66.231.208.0/24 unknown
v4 66.231.214.0/24 unknown
v4 66.231.215.0/24 unknown
v4 66.231.217.0/24 unknown
v4 66.231.219.0/24 unknown
v4 66.231.220.0/22 unknown
v4 69.168.0.0/20 unknown
v4 69.49.128.0/19 unknown
v4 69.49.128.0/24 unknown
v4 69.49.129.0/24 unknown
v4 69.49.133.0/24 unknown
v4 69.49.140.0/23 unknown
v4 69.49.144.0/24 unknown
v4 69.49.146.0/24 unknown
v4 69.49.148.0/24 unknown
v4 69.49.153.0/24 unknown
v4 72.12.64.0/19 valid
v4 72.12.75.0/24 valid
v4 72.12.76.0/23 valid
v4 72.12.78.0/24 valid
v4 72.12.79.0/24 valid
v4 72.12.80.0/24 valid
v4 72.12.84.0/24 valid
v4 72.12.87.0/24 valid
v4 72.12.91.0/24 valid
v4 72.12.92.0/24 valid
v4 72.12.94.0/23 valid
v4 72.55.224.0/19 unknown
v4 72.55.247.0/24 unknown

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 57 IPv4 · 5 IPv6 announced · RIS visibility 325/325 RIS peers · RIPEstat · 2026-06-18

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

AS36501 GARMIN INTERNATIONAL INC.
AS36787 Hearst-Argyle Television, Inc.
AS36823 Martin's Point HealthCare
AS395342 Exeter Hospital

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