Autonomous system
AS6623 CBSI-1
Hosting ARIN
Summary
CBS Interactive
enterprise media legacy
The network of CBS Interactive Inc., the digital media arm of CBS, registered under the handle CBSI-1 from San Francisco. CBS Interactive's properties now sit under Paramount.
What it's used for
- Hosting and delivery for CBS's own web properties. Reverse DNS on its space names the brands directly, with routers appearing under
cbsig.netandsportsline.com, the long-running CBS Sports domain.
Notable
- This is a media company's own infrastructure, not a hosting service sold to others. Addresses here front CBS-operated sites and the network gear behind them.
- CBS Interactive as an organisation has largely been dissolved and reorganised. Its consumer tech brands were sold off, and the streaming business was folded into Paramount's streaming division, but the ARIN registration and much of the reverse DNS still carry the CBS Interactive identity.
Interesting
- One of the AS's blocks sits at
216.239.112.0/20, next door to ranges most people associate with Google. It is genuinely CBS Interactive's: ARIN registers the network to CBSI, and its reverse DNS resolves undercnet.com, a leftover from when CNET was part of the group. Adjacency in the address space says nothing about common ownership.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| FL-IX - The Florida Internet Exchange / Community IX - Florida | Miami, United States | 206.41.108.59 |
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 4 prefixes · 8.70K addresses IPv6 5 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6623- Registry name
- CBSI-1
- Registrant
- CBS Interactive Inc.
- Abuse contact
- abuse@cbsinteractive.com
- Registered
- 1995-06-07
- Last changed
- 2012-07-09
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 13 with no ROA
- ROAs
- 0 authorising AS6623
- ASPA
- no ASPA record
- IRR
- 100% registered · 13 of 13 announcements
- Route objects
- 18 naming AS6623
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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