AS6102 CBSCORPORATE

CBSCORPORATE is the corporate network of CBS, the American broadcast television network and media company. Following the Viacom merger and the 2025 Skydance transaction, CBS now sits inside Paramount, a Skydance Corporation — but the registry records and the routed space are still held under the CBS name.

What it's used for

• The company's own enterprise network: corporate offices, broadcast and production facilities, owned-and-operated station groups, and internet-facing media systems.
• It announces a substantial footprint, including 170.20.0.0/16 (netname CBS-170) and space registered as VIACOM-NET — the two corporate estates visible side by side in the routing table.

Notable

• Enterprise addressing for a media company, not a hosting or CDN network. Public streaming delivery for its services runs through commercial CDNs, not from this AS.
• rDNS on parts of the space resolves under CBS station-group domains, which is a good reminder that a broadcaster's network is largely facilities and production, not audience-facing capacity.

Interesting

• ARIN dates the AS number to November 1995, in the sequential run of genuine mid-1990s allocations.
• The VIACOM-NET netname is a fossil of the CBS/Viacom split-and-remerge: the two companies separated in 2006 and reunited in 2019, and the address registry still carries both identities.