AS12200 Rackspace Hosting

RACKSPACE - Rackspace Hosting · registered in the United States

IPv4 addresses5,90415 prefixes · <0.001% of announced IPv4

Rank in United States#3,852largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#12,551of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS12200 in ASN lookup Look up an IP in this network (66.70.24.1) All networks in United States

IPv4 prefixes

All 15 prefixes, in address order.

66.70.24.0/24
72.32.221.80/28
81.168.7.0/24
146.177.20.0/23
146.177.56.0/24
146.177.74.0/24
166.86.0.0/22
171.33.145.0/24
174.143.80.0/24
192.65.36.0/24
199.253.202.0/23
199.253.204.0/23
204.9.96.0/24
205.143.66.0/24
208.95.152.0/22

IPv6 prefixes

All 1 prefix.

2607:e3c0:a042::/48

Other ASNs named Rackspace Hosting

4 other networks use the same organisation name; together with AS12200 they announce 1,606,401 IPv4 addresses.

ASNNameIPv4 addresses

AS33070RMH-14 - Rackspace Hosting US798,961

AS19994RACKSPACE - Rackspace Hosting US537,088

AS27357RACKSPACE - Rackspace Hosting US263,936

AS54636AS-DBIO - Rackspace Hosting US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS400180#3849 FMTC-STANTON - The Farmers Mutual Telephone Company of Stanton, Iowa6,144

AS400404#3850 SCREMC - STEUBEN COUNTY RURAL ELECTRIC MEMBERSHIP CORPORATION6,144

AS400737#3851 AMS-CO-CXO - HEWLETT PACKARD ENTERPRISE COMPANY6,144

AS395148#3853 PACLW - PACIFIC LIGHTWAVE, A CALIFORNIA CORPORATION5,890

AS996#3854 JY-MOBILE-COMMUNICATIONS - JY Mobile Communications5,888

AS13427#3855 SOFTCOM - Softcom Internet Communications, Inc.5,888

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