asn.dev

Autonomous system

AS6222 CENTURYLINK-LEGACY-EMBARQ-CLTN

Residential ARIN

IPv4 addresses 59.14K 36 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

CenturyLink Communications, LLC (legacy Embarq)

United States · AI-generated

isp legacy

CENTURYLINK-LEGACY-EMBARQ-CLTN is one of the autonomous systems CenturyLink (now Lumen) inherited from Embarq, and it still carries consumer broadband. Registered to CenturyLink Communications, LLC in Monroe, Louisiana.

What it's used for

  • Residential and small-business internet access on the former Embarq footprint.
  • Announces roughly 53,000 IPv4 addresses across about 37 prefixes.

Notable

  • The reverse DNS is unambiguous: addresses resolve as …dyn.embarqhsd.net and …sta.embarqhsd.net — Embarq High Speed Data, with dyn and sta marking dynamic and static subscriber assignments. This is an eyeball network, not backbone or hosting space.
  • Embarq was Sprint's local telephone division, spun off in 2006 and merged with CenturyTel in 2009 to form CenturyLink. Two corporate generations later, the subscriber DNS still says "embarq".

Interesting

  • Large carriers keep many acquired ASNs alive rather than renumbering customers, so a single company can hold dozens of them. When reasoning about a CenturyLink/Lumen address, the specific ASN matters: this one is broadband subscribers, while its neighbours AS6223 and AS6224 are a wholly different, federal service.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS22561CenturyLink Communications, LLC2,257

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 36 prefixes · 59.14K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America36

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS6222
Registry name
CENTURYLINK-LEGACY-EMBARQ-CLTN
Registrant
CenturyLink Communications, LLC
Abuse contact
abuse@aup.lumen.com
Last changed
2018-08-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 37 with no ROA
ROAs
0 authorising AS6222
ASPA
no ASPA record
IRR
0% registered · 0 of 37 announcements
Route objects
0 naming AS6222

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 447 networks and 1,845 prefixes, as published 2026-10-31. 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

Cross-check