AS11283 Costco, Inc.

COSTCO - Costco, Inc. · registered in the United States

IPv4 addresses12,54418 prefixes · <0.001% of announced IPv4

Rank in United States#2,652largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#8,060of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS11283 in ASN lookup Look up an IP in this network (170.167.0.1) All networks in United States

IPv4 prefixes

All 18 prefixes, in address order.

170.167.0.0/21
170.167.8.0/24
170.167.10.0/23
170.167.48.0/21
170.167.56.0/23
170.167.63.0/24
170.167.100.0/22
170.167.104.0/22
170.167.108.0/24
170.167.110.0/23
170.167.117.0/24
170.167.118.0/24
170.167.192.0/22
170.167.196.0/23
170.167.201.0/24
170.167.240.0/24
170.167.244.0/22
170.167.248.0/23

Similar-sized networks in United States

ASNNameIPv4 addresses

AS5773#2649 BCN-TELECOM-ASN2 - BCN Telecom Inc.12,544

AS11013#2650 BLUE-AS - WideOpenWest Finance LLC12,544

AS11168#2651 SCC - SMART CHOICE COMMUNICATIONS, LLC12,544

AS13315#2653 HBSNET - Harvard Business School12,544

AS14213#2654 MONTEREY-BAY-K12 - Monterey County Office of Education12,544

AS17200#2655 SEATTLECOLL - Seattle Community College District12,544

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources