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 192.107.118.0/24 unknown
v4 192.139.196.0/24 unknown
v4 192.207.230.0/24 unknown
v4 198.137.199.0/24 unknown
v4 199.217.64.0/19 unknown
v4 199.242.16.0/21 unknown
v4 199.242.24.0/23 unknown
v4 199.6.20.0/24 unknown
v4 200.229.25.0/24 valid
v4 202.126.0.0/20 unknown
v4 203.82.128.0/19 unknown
v4 203.82.144.0/24 unknown
v4 204.13.202.0/23 unknown
v4 204.188.0.0/17 unknown
v4 204.188.128.0/21 unknown
v4 204.188.144.0/20 unknown
v4 204.188.160.0/19 unknown
v4 204.194.8.0/21 unknown
v4 204.70.0.0/15 unknown
v4 204.70.128.0/24 unknown
v4 204.70.133.0/24 unknown
v4 204.70.138.0/24 unknown
v4 204.71.0.0/24 unknown
v4 204.71.128.0/22 unknown
v4 204.71.140.0/22 unknown
v4 204.71.176.0/20 unknown
v4 204.71.18.0/24 unknown
v4 204.71.192.0/20 unknown
v4 204.71.232.0/22 unknown
v4 204.71.32.0/22 unknown
v4 204.71.60.0/22 unknown
v4 204.71.79.0/24 unknown
v4 205.136.0.0/16 valid
v4 205.138.0.0/15 unknown
v4 205.138.112.0/22 unknown
v4 205.138.116.0/22 unknown
v4 205.138.120.0/21 unknown
v4 205.138.144.0/20 unknown
v4 205.138.168.0/22 unknown
v4 205.138.172.0/22 unknown
v4 205.138.192.0/22 unknown
v4 205.138.196.0/24 unknown
v4 205.138.197.0/24 unknown
v4 205.138.24.0/21 unknown
v4 205.138.240.0/20 unknown
v4 205.138.243.0/24 unknown
v4 205.138.32.0/21 unknown
v4 205.138.40.0/21 unknown
v4 205.138.64.0/20 unknown
v4 205.139.112.0/20 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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