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United States

AS3561

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.

Announced prefixes · 620

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

— Routing status unavailable

Prefix history

0 250 500 2026-06-12 2026-06-21
Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)
Data table
DayAnnounced prefixes
2026-06-12623
2026-06-13623
2026-06-14623
2026-06-16623
2026-06-19622
2026-06-20620
2026-06-21620

AS topology · Customer cone 53

Providers · 3

  • AS3356 Level 3 Parent, LLC
  • AS209 CenturyLink Communications, LLC
  • AS3910 CenturyLink Communications, LLC

Peers · 3

Customers · 52

  • AS29457 Options Technology Ltd
  • AS6989 Government Technology Services Inc.
  • AS7761 Morningstar, Inc.
  • AS10959 Bank of America, National Association
  • AS13458 DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
  • AS13494 Morningstar, Inc.
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