AS3561

Name: AS3561 — CenturyLink Communications, LLC
Creator: ipdex

CenturyLink Communications, LLC ISP registered in United States

618IPv4 prefixes

2IPv6 prefixes

25%RPKI-valid

#777AS Rank

#59Rank in United States

1998-10-07Allocated

CenturyLink Communications, LLC (AS3561) — ISP, registered in United States. announces 618 IPv4 prefixes + 2 IPv6 prefixes. Rank in United States: #59. Allocated: 1998-10-07.

IPv4 618IPv6 2

Announced prefixes · 620

v4 205.139.118.0/23 unknown
v4 205.139.128.0/19 unknown
v4 205.139.132.0/24 unknown
v4 205.139.16.0/20 unknown
v4 205.139.160.0/20 unknown
v4 205.139.21.0/24 unknown
v4 205.139.32.0/19 unknown
v4 205.139.64.0/20 unknown
v4 205.139.68.0/24 unknown
v4 205.139.88.0/23 unknown
v4 205.139.91.0/24 unknown
v4 205.139.96.0/20 unknown
v4 205.140.0.0/17 unknown
v4 205.140.128.0/19 unknown
v4 205.140.160.0/20 unknown
v4 205.140.162.0/24 unknown
v4 205.140.163.0/24 unknown
v4 205.140.168.0/24 unknown
v4 205.140.169.0/24 unknown
v4 205.140.192.0/18 unknown
v4 205.140.192.0/19 unknown
v4 205.140.224.0/19 unknown
v4 205.164.28.0/24 valid
v4 205.164.38.0/24 valid
v4 205.164.58.0/24 valid
v4 205.216.0.0/16 unknown
v4 205.216.0.0/18 unknown
v4 205.216.108.0/22 unknown
v4 205.216.128.0/22 unknown
v4 205.216.248.0/24 unknown
v4 205.216.64.0/20 unknown
v4 205.217.0.0/17 unknown
v4 205.217.0.0/19 unknown
v4 205.217.128.0/18 unknown
v4 205.217.128.0/20 unknown
v4 205.217.160.0/19 unknown
v4 205.217.192.0/19 unknown
v4 205.217.192.0/20 unknown
v4 205.217.208.0/20 unknown
v4 205.217.96.0/20 unknown
v4 205.218.0.0/15 unknown
v4 205.218.0.0/18 unknown
v4 205.219.216.0/21 unknown
v4 205.219.224.0/19 unknown
v4 205.219.237.0/24 unknown
v4 205.219.64.0/18 unknown
v4 206.100.0.0/14 valid
v4 206.100.0.0/21 valid
v4 206.101.32.0/21 valid
v4 206.128.0.0/19 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	623
2026-06-13	623
2026-06-14	623
2026-06-16	623
2026-06-19	622
2026-06-20	620

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AS3561

Announced prefixes · 620

Prefix history

AS topology · Customer cone 53

Providers · 3

Peers · 3

Customers · 52

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