Autonomous system
AS13787 CENTURYLINK-LEGACY-EMBARQ-JCTY - CenturyLink Communications, LLC
Unclassified ARIN
Summary
CenturyLink (legacy Embarq)
isp telecom business
Five reverse zones across four brands for 3,328 addresses, with the service type written into the name.
What it's used for
- A regional telephone company's network, now part of a larger carrier. 3,328 addresses across four IPv4 prefixes, one observed BGP neighbour, and no IPv6 announced.
Notable
- Addresses answer under
centurylinkservices.net,embarqservices.net,centurylink.netandembarqhsd.net, two brands with two zones each. - Labels in those names say what the address is for: one marks voice service, one marks dynamic assignment and one marks static.
- Dynamic and static names both carry a two-letter state prefix before the address.
- One block answers as
host254.embarqservices.net, naming only the final octet. - The AS handle and both netnames stack the acquirer, the word legacy, the acquired brand and a site code.
Interesting
- Four brands in the reverse DNS of one small network is an acquisition that was never finished. Each zone works, each was authoritative for its own era, and nothing forced a migration because reverse records rarely break anything when they are stale.
- Publishing whether an address is dynamic, static or carrying voice traffic is useful operationally and equally useful to anyone deciding what to send it. The voice label in particular marks the addresses where call traffic terminates.
- One upstream for a carrier's own block is the parent network doing the carrying.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS22561 | CenturyLink Communications, LLC | 235 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 3.33K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13787- Registry name
- CENTURYLINK-LEGACY-EMBARQ-JCTY
- Registrant
- CenturyLink Communications, LLC
- Abuse contact
- abuse@aup.lumen.com
- Registered
- 2006-09-29
- Last changed
- 2018-08-14
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 4 with no ROA
- ROAs
- 0 authorising AS13787
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 4 announcements
- Route objects
- 3 naming AS13787
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: 453 networks and 1,854 prefixes, as published 2026-11-06. 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