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 142.252.65.0/24 valid
v4 142.252.80.0/24 valid
v4 142.252.85.0/24 valid
v4 142.252.92.0/24 valid
v4 142.252.98.0/24 valid
v4 149.19.157.0/24 valid
v4 149.19.158.0/23 valid
v4 151.248.72.0/21 valid
v4 151.248.80.0/21 valid
v4 151.248.88.0/22 valid
v4 162.33.165.0/24 valid
v4 162.33.166.0/24 valid
v4 165.140.143.0/24 unknown
v4 165.193.0.0/16 unknown
v4 165.193.0.0/19 unknown
v4 165.193.106.0/23 unknown
v4 165.193.112.0/20 unknown
v4 165.193.128.0/20 unknown
v4 165.193.192.0/19 unknown
v4 165.193.224.0/19 unknown
v4 165.193.32.0/19 unknown
v4 165.193.64.0/19 unknown
v4 165.193.96.0/20 unknown
v4 166.1.102.0/24 valid
v4 166.49.0.0/17 unknown
v4 166.63.128.0/19 unknown
v4 167.215.0.0/16 unknown
v4 167.215.232.0/24 unknown
v4 167.216.128.0/17 unknown
v4 167.216.128.0/21 unknown
v4 167.216.160.0/20 unknown
v4 167.216.176.0/20 unknown
v4 167.216.192.0/20 unknown
v4 167.216.232.0/21 unknown
v4 167.216.240.0/20 unknown
v4 172.252.251.0/24 valid
v4 172.252.252.0/24 valid
v4 172.252.253.0/24 valid
v4 172.252.61.0/24 valid
v4 172.252.93.0/24 valid
v4 175.110.100.0/22 unknown
v4 176.118.80.0/21 valid
v4 178.157.64.0/22 valid
v4 178.159.64.0/22 valid
v4 178.159.72.0/22 valid
v4 185.123.144.0/22 valid
v4 185.123.152.0/22 valid
v4 185.143.76.0/24 valid
v4 185.200.236.0/22 valid
v4 188.119.144.0/22 valid

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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