AS21547 · FirstLight Networks, LLC

78
IPv4 prefixes
108,544
IPv4 addresses
5
IPv6 prefixes
🇺🇸 US
Country

Summary

AS number
AS21547
Name
FirstLight Networks, LLC
Country
🇺🇸 United States
Type
ARIN
Category
business
Announced
83 prefixes
Updated
2026-04-22

Announced IPv4 prefixes (78)

Prefix
63.127.192.0/21
64.140.192.0/18
64.140.199.0/24
64.140.224.0/19
64.140.224.0/24
64.140.225.0/24
64.140.234.0/24
64.140.246.0/24
66.186.160.0/19
66.186.162.0/24
66.186.163.0/24
66.186.166.0/24
66.186.168.0/24
66.186.171.0/24
66.186.173.0/24
66.186.176.0/24
66.186.184.0/24
66.186.188.0/24
66.231.192.0/19
66.231.192.0/24
66.231.203.0/24
66.231.207.0/24
66.231.208.0/24
66.231.214.0/24
66.231.215.0/24
66.231.217.0/24
66.231.219.0/24
66.231.220.0/22
69.49.128.0/19
69.49.128.0/24
69.49.129.0/24
69.49.133.0/24
69.49.140.0/23
69.49.144.0/24
69.49.146.0/24
69.49.148.0/24
69.49.150.0/24
69.49.153.0/24
69.49.154.0/24
69.168.0.0/20
72.12.64.0/19
72.12.64.0/24
72.12.69.0/24
72.12.74.0/24
72.12.75.0/24
72.12.76.0/23
72.12.78.0/24
72.12.79.0/24
72.12.80.0/24
72.12.84.0/24
72.12.87.0/24
72.12.91.0/24
72.12.92.0/24
72.12.94.0/23
72.55.224.0/19
72.55.229.0/24
72.55.247.0/24
72.55.248.0/23
72.55.250.0/23
72.55.254.0/23
74.220.224.0/20
74.220.236.0/24
140.165.50.0/24
198.212.225.0/24
198.212.226.0/23
198.212.230.0/24
204.97.16.0/21
204.97.232.0/21
204.249.238.0/23
205.247.20.0/22
205.247.112.0/22
206.106.132.0/22
208.0.176.0/21
208.3.240.0/21
208.17.26.0/23
208.28.182.0/23
208.28.192.0/22
208.31.8.0/21

Announced IPv6 prefixes (5)

Prefix
2001:4940::/32
2001:4940:2001::/48
2001:4940:2006::/48
2001:4940:2007::/48
2604:3f00::/32