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 209.181.122.0/24 unknown
v4 209.181.128.0/21 unknown
v4 209.181.137.0/24 unknown
v4 209.181.138.0/23 unknown
v4 209.181.14.0/23 unknown
v4 209.181.143.0/24 unknown
v4 209.181.148.0/22 unknown
v4 209.181.152.0/21 unknown
v4 209.181.16.0/24 unknown
v4 209.181.189.0/24 unknown
v4 209.181.191.0/24 unknown
v4 209.181.196.0/24 unknown
v4 209.181.206.0/23 unknown
v4 209.181.208.0/24 unknown
v4 209.181.211.0/24 unknown
v4 209.181.224.0/23 unknown
v4 209.181.227.0/24 unknown
v4 209.181.233.0/24 unknown
v4 209.181.235.0/24 unknown
v4 209.181.240.0/23 unknown
v4 209.181.242.0/24 unknown
v4 209.181.245.0/24 unknown
v4 209.181.248.0/24 unknown
v4 209.181.251.0/24 unknown
v4 209.181.252.0/23 unknown
v4 209.181.254.0/24 unknown
v4 209.181.4.0/22 unknown
v4 209.181.41.0/24 unknown
v4 209.181.42.0/23 unknown
v4 209.181.44.0/23 unknown
v4 209.181.47.0/24 unknown
v4 209.181.54.0/23 unknown
v4 209.181.56.0/22 unknown
v4 209.181.60.0/23 unknown
v4 209.181.64.0/21 unknown
v4 209.181.73.0/24 unknown
v4 209.181.76.0/22 unknown
v4 209.181.80.0/21 unknown
v4 209.181.88.0/21 unknown
v4 209.181.96.0/20 unknown
v4 209.201.0.0/17 unknown
v4 209.206.128.0/17 unknown
v4 209.206.166.0/24 unknown
v4 209.206.175.0/24 unknown
v4 209.206.248.0/22 unknown
v4 209.206.252.0/23 unknown
v4 209.211.0.0/16 unknown
v4 209.247.32.0/24 unknown
v4 209.26.0.0/16 unknown
v4 209.26.150.0/24 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	1652
2026-06-13	1652
2026-06-14	1652
2026-06-16	1652
2026-06-17	1652
2026-06-19	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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