Autonomous system
AS3910 CENTURYLINK-EUROPE-LEGACY-QWEST
Unclassified ARIN
Summary
CenturyLink Communications (legacy Qwest Europe)
transit legacy
CENTURYLINK-EUROPE-LEGACY-QWEST is held by CenturyLink Communications, LLC — the carrier now trading as Lumen Technologies. The handle records the ASN's lineage: it came out of Qwest Communications' European operations and passed to CenturyLink when it acquired Qwest.
What it's used for
- Carrier address space attached to Lumen's European footprint, rather than a customer-facing eyeball network.
Notable
- One of several ASNs Lumen inherited through acquisition. Large carriers accumulate AS numbers as they absorb other networks, and the old names often survive in the registry handle long after the company that coined them is gone.
- Registered with ARIN in 1996, so the low number reflects a genuine mid-1990s allocation rather than a later reissue.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 21 prefixes · 13.82K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 21 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3910- Registry name
- CENTURYLINK-EUROPE-LEGACY-QWEST
- Registrant
- CenturyLink Communications, LLC
- Abuse contact
- abuse@aup.lumen.com
- Registered
- 1996-10-01
- Last changed
- 2018-10-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 22 with no ROA
- ROAs
- 0 authorising AS3910
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 22 announcements 1 other origin
- Route objects
- 0 naming AS3910
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,781 prefixes, as published 2026-10-16. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere