AS6167

AS6167 is the autonomous system behind Verizon's US cellular network, operated by Cellco Partnership doing business as Verizon Wireless and registered under ARIN. The ARIN organization record reads "Verizon Business" (OrgId MCICS), reflecting Verizon's consolidated registry footprint, but the operational and abuse records identify Verizon Wireless as the operator, and reverse DNS resolves under myvzw.com. It is a sibling of the already-profiled Verizon Business backbone AS701 and shares registry space with other Verizon ASNs such as AS22394 and AS2828. Despite holding on the order of 18–31 million IPv4 addresses (sources disagree), the network behaves like a stub/leaf in BGP terms with very few observed peers — its job is to carry mobile-handset traffic, not transit. The decisive triage consideration is carrier-grade NAT: a single public IP commonly fronts many subscribers at once and is dynamically reassigned over time, which makes point-in-time IP-to-subscriber attribution unreliable. Cloudflare Radar estimates roughly 19 million users on this ASN. Verizon Wireless began as a Bell Atlantic/Vodafone joint venture and became wholly Verizon-owned after Verizon bought out Vodafone's 45% stake in 2014.

Operator

Cellco Partnership d/b/a Verizon Wireless (ARIN org "Verizon Business", OrgId MCICS) [Confirmed] — ARIN RDAP/WHOIS

Country / RIR

US, ARIN [Confirmed] — ARIN RDAP

Allocated

2001-09-04 (ARIN RegDate; updated 2022-05-31) [Confirmed] — ARIN RDAP

Org status

active; began as Bell Atlantic/Vodafone JV (Verizon 55% / Vodafone 45%), became wholly Verizon-owned after Verizon acquired Vodafone's 45% stake (~$130B, closed 2014-02-21) — sec.gov, en.wikipedia.org/wiki/Cellco_Partnership

Security/abuse context

CGNAT mobile network — one IP fronts many subscribers and is dynamically reassigned, so per-IP attribution is unreliable. Third-party mobile/bittorrent/crawler/tor tags on isolated IPs reflect a large consumer pool, not operator intent. No notable distinct public abuse-dataset ranking found as of 2026-06-06 — ipinfo.io

Network & routing

Network type

mobile-carrier [Confirmed] — operator + bgp.he.net

Size

~2,158 IPv4 prefixes (~18M–31M addrs; sources disagree), ~1,648 IPv6; ~19M users (Cloudflare Radar) — bigdatacloud.com / ipqualityscore.com / radar.cloudflare.com (2026-05/06)

Routing/peering

behaves as a stub/leaf (~3 peers / ~3 upstreams observed), routing primarily via Verizon's AS701 ecosystem; IX presence minimal; peering policy unknown; RPKI unknown — bgp.he.net

Notable usage

Verizon's US cellular/mobile-data network; rDNS under myvzw.com — verizon.com

Related ASNs

AS701 (Verizon Business backbone), AS22394 (Verizon Business / Verizon Wireless), AS2828 (Verizon Business)

Analyst note

Encountered as US mobile-handset traffic; CGNAT means a single IP maps to many subscribers and is dynamically reassigned — do not attribute a per-IP identity.