AS22773

AS22773 is the primary autonomous system of Cox Communications, the largest privately held residential cable broadband provider in the United States, registered under ARIN. It is straightforward eyeball space: PeeringDB classifies it as Cable/DSL/ISP with traffic in the 100–200 Gbps range, mostly inbound, scoped to North America. The network originates several thousand IPv4 prefixes (around 12.5–12.8 million addresses) and a substantial IPv6 footprint, taking transit from a mix of large carriers including AT&T (AS7018), Level 3/Lumen (AS3356), NTT (AS2914), Arelion (AS1299), and GTT (AS3257). Its peering policy is selective — a contract is required and multiple interconnection locations are preferred, though a traffic ratio is not. Route hygiene is good, with the overwhelming majority of originated prefixes RPKI-valid against a small number of invalids. For triage, an address here is almost always a US residential cable subscriber on a dynamic or sticky-DHCP lease, so the usual eyeball considerations apply: addresses can change hands over time, and any single IP may sit in front of compromised home devices. Cox is currently subject to a pending combination with Charter announced in May 2025.

Operator

Cox Communications Inc. [Confirmed] — ARIN RDAP/WHOIS

Country / RIR

US, ARIN [Confirmed] — ARIN RDAP

Allocated

2001-11-20 (ARIN RegDate; updated 2012-03-02) [Confirmed] — ARIN RDAP

Org status

active but pending M&A — Charter and Cox announced a definitive agreement (2025-05-16) to combine; combined company to be renamed Cox Communications with Spectrum as the consumer brand (regulatory/shareholder approval pending) — sec.gov

Security/abuse context

residential cable eyeball — dynamic/sticky DHCP reassignment and possible compromised home devices behind any IP. Isolated anycast/bittorrent/crawler/tor tags from third parties. No notable distinct public abuse-dataset ranking found as of 2026-06-06 — ipinfo.io

Network & routing

Network type

ISP-eyeball (residential cable) [Confirmed] — PeeringDB (Cable/DSL/ISP)

Size

~8,348 IPv4 prefixes originated (~10,409 incl. more-specifics; ~12.5M–12.8M addrs), ~2,510 IPv6 — bgp.he.net / bigdatacloud.com (2026-05/06)

Routing/peering

upstreams incl. AS7018 (AT&T), AS3356 (Lumen), AS2914 (NTT), AS1299 (Arelion), AS3257 (GTT); ~1 IX; selective peering (contract required, multiple locations preferred, ratio not required); RPKI mostly valid (~10,720 valid vs ~33 invalid) — peeringdb.com/asn/22773, bgp.he.net

Notable usage

largest privately held US residential cable broadband network — cox.com

Related ASNs

other Cox ASNs exist

Analyst note

An IP here is almost always a US residential cable subscriber (dynamic/sticky DHCP); apply standard eyeball caution.