asn.dev

Autonomous system

AS3561 CENTURYLINK-LEGACY-SAVVIS

Hosting ARIN

IPv4 addresses 6.37M 1,403 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly US
Flagged prefixes 0 none

Summary

Lumen / CenturyLink (legacy Savvis)

United States · AI-generated

backbone transit hosting

A large legacy US backbone Autonomous System (CENTURYLINK-LEGACY-SAVVIS),

now part of Lumen Technologies via CenturyLink's acquisition of Savvis. Savvis

was a major managed-hosting and IP-network operator; this ASN carries that

inherited transit and hosting infrastructure.

What it's used for

  • Long-haul IP transit and enterprise connectivity, plus legacy managed hosting and data-center customers absorbed from Savvis.

Notable

  • Primarily a carrier/backbone ASN, so addresses here are often transit or enterprise circuits rather than retail VPS.
  • Part of the broader Lumen/CenturyLink/Level 3 network family, which spans many ASNs from decades of mergers.

Interesting

  • Savvis was one of the early managed-hosting and colocation heavyweights before CenturyLink (now Lumen) acquired it in 2011.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Address space

Summary

Full explorer
CountryNamePrefixes
USUnited States of America1,405

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS3561
Registry name
CENTURYLINK-LEGACY-SAVVIS
Registrant
CenturyLink Communications, LLC
Abuse contact
abuse@aup.lumen.com
Registered
1998-10-07
Last changed
2018-11-15
Status
active

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

No IC3 indicators Nothing from the FBI IC3 feed.

Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check