AS209

Name: AS209 — CenturyLink Communications, LLC
Creator: ipdex

CenturyLink Communications, LLC ISP registered in United States

1,620IPv4 prefixes

32IPv6 prefixes

1%RPKI-valid

#144AS Rank

#20Rank in United States

1998-11-13Allocated

CenturyLink Communications, LLC (AS209) — ISP, registered in United States. announces 1,620 IPv4 prefixes + 32 IPv6 prefixes. Rank in United States: #20. Allocated: 1998-11-13.

IPv4 1,620IPv6 32

Announced prefixes · 1,652

v4 71.37.159.0/24 unknown
v4 71.37.166.0/23 unknown
v4 71.37.172.0/22 unknown
v4 71.37.176.0/21 unknown
v4 71.37.192.0/18 unknown
v4 71.37.64.0/18 unknown
v4 71.38.0.0/16 unknown
v4 71.39.0.0/20 unknown
v4 71.39.112.0/21 unknown
v4 71.39.120.0/22 unknown
v4 71.39.124.0/22 unknown
v4 71.39.128.0/20 unknown
v4 71.39.148.0/22 unknown
v4 71.39.152.0/22 unknown
v4 71.39.156.0/22 unknown
v4 71.39.16.0/21 unknown
v4 71.39.160.0/20 unknown
v4 71.39.176.0/21 unknown
v4 71.39.184.0/21 unknown
v4 71.39.192.0/22 unknown
v4 71.39.200.0/22 unknown
v4 71.39.208.0/21 unknown
v4 71.39.216.0/21 unknown
v4 71.39.224.0/21 unknown
v4 71.39.232.0/21 unknown
v4 71.39.24.0/22 unknown
v4 71.39.244.0/22 unknown
v4 71.39.248.0/22 unknown
v4 71.39.252.0/22 unknown
v4 71.39.28.0/22 unknown
v4 71.39.32.0/21 unknown
v4 71.39.48.0/21 unknown
v4 71.39.56.0/22 unknown
v4 71.39.64.0/20 unknown
v4 71.39.80.0/21 unknown
v4 71.39.88.0/21 unknown
v4 71.39.96.0/20 unknown
v4 71.48.0.0/13 unknown
v4 71.48.32.0/20 unknown
v4 71.48.56.0/21 unknown
v4 71.49.128.0/20 unknown
v4 71.49.168.0/21 unknown
v4 71.49.204.0/23 unknown
v4 71.49.206.0/23 unknown
v4 71.49.224.0/20 unknown
v4 71.50.64.0/20 unknown
v4 71.51.64.0/20 unknown
v4 71.52.0.0/19 unknown
v4 71.52.48.0/20 unknown
v4 71.52.96.0/20 unknown

RPKI: rpki.cloudflare.com · 2026-06-22

— 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	1652
2026-06-13	1652
2026-06-14	1652
2026-06-16	1652
2026-06-17	1652
2026-06-19	1652
2026-06-21	1652

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AS209

Announced prefixes · 1,652

Prefix history

AS topology · Customer cone 406

Peers · 24

Customers · 385

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