AS33633 USG Corporation, Inc.

USG-CORPORATION - USG Corporation, Inc. · registered in the United States

IPv4 addresses1,5363 prefixes · <0.001% of announced IPv4

Rank in United States#7,064largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#26,655of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS33633 in ASN lookup Look up an IP in this network (8.26.176.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

8.26.176.0/24
64.43.232.0/22
66.225.192.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS33350#7061 APS---ARIZONA-PUBLIC-SERVICE-CORPORATION - Arizona Public Service Company1,536

AS33476#7062 AS33476-TRADE-12 - SS&C Technologies, Inc.1,536

AS33614#7063 CITY-OF-SAN-DIEGO - City of San Diego1,536

AS33723#7065 LENNAR - Lennar Corporation1,536

AS35953#7066 VIRTEL-16 - NTT Global Networks Incorporated1,536

AS35997#7067 UNITED-FINANCIAL-SERVICES - UFS LLC1,536

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