Autonomous system
AS13433 COXNET - Cox Enterprises Inc
Unclassified ARIN
Summary
Cox Enterprises
media enterprise business
Every record names four contact roles, one of which has the registry's own name in it.
What it's used for
- A media and communications company's corporate network. 70,400 addresses across eleven IPv4 prefixes, three observed BGP neighbours, and the IPv6 block
2607:fc40::/32.
Notable
- Eight blocks are netname
COXMEDIAGROUP, registered toCox Newspapers/AJCwith a slash in the name. - Each of those records lists four roles: network engineering, an operations centre, and an abuse contact whose label includes the registry's name.
- Two blocks are netname
BRW-6617-COXENTERPRIS, cut off mid-word at twenty-one characters. - The eight media blocks are a /17, /18, /19, /20, /21, /22, /23 and /24, all from one range.
- Eighteen addresses were queried for reverse DNS and none returned a name.
Interesting
- Naming the registry inside a contact role means the organisation maintains more than one abuse address and needed to mark which one the registry record points at. That is a company large enough for its public contact and its internal one to be different teams.
- The eight prefixes are consecutive powers of two covering one allocation, announced separately to three upstreams. Unlike a single-homed network doing the same thing, here there is somewhere for the pieces to go.
- A newspaper title inside the registrant of a network holding seventy thousand addresses is the corporate history: the media group came first and the rest of the company grew around it.
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 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 70.40K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 15 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13433- Registry name
- COXNET
- Registrant
- Cox Enterprises Inc
- Abuse contact
- CEIARINAbuse@coxinc.com
- Registered
- 1999-06-04
- Last changed
- 2021-01-14
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 11 with no ROA
- ROAs
- 0 authorising AS13433
- ASPA
- no ASPA record
- IRR
- 100% registered · 11 of 11 announcements
- Route objects
- 11 naming AS13433
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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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