AS33070 Rackspace Hosting

RMH-14 - Rackspace Hosting · registered in the United States

IPv4 addresses798,961135 prefixes · 0.025% of announced IPv4

Rank in United States#123largest network in US by IPv4 space, of 18,338 · 0.06% of US

Rank worldwide#428of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS33070 in ASN lookup Look up an IP in this network (23.253.64.1) All networks in United States

IPv4 prefixes

All 135 prefixes, in address order.

23.253.64.0/18
23.253.224.0/19
50.56.128.0/20
50.56.144.0/22
50.56.152.0/21
50.56.160.0/19
50.56.192.0/18
64.39.0.0/19
64.49.192.0/19
64.49.224.0/21
64.49.234.0/23
64.49.236.0/22
64.49.240.0/20
64.57.212.148/32
65.61.128.0/21
65.61.136.0/22
65.61.140.0/24
65.61.144.0/23
65.61.148.0/22
65.61.153.0/24
65.61.154.0/23
65.61.156.0/22
65.61.160.0/20
65.61.176.0/21
65.61.184.0/23
65.61.189.0/24
65.61.190.0/23
66.216.64.0/19
66.216.96.0/20
66.216.112.0/22
66.216.118.0/23
66.216.120.0/21
67.23.0.0/19
67.23.32.0/20
67.192.0.0/16
72.3.128.0/17
72.32.0.0/17
72.32.128.0/18
72.32.192.0/20
72.32.208.0/21
72.32.216.0/22
72.32.220.0/24
72.32.221.0/26
72.32.221.64/28
72.32.221.96/27
72.32.221.128/25
72.32.222.0/23
72.32.224.0/19
72.36.247.0/24
72.232.0.0/20
72.232.16.0/21
72.232.32.0/19
72.232.64.0/18
72.232.128.0/20
72.232.152.0/21
72.232.160.0/19
72.232.192.0/18
72.233.0.0/17
74.205.32.0/19
74.205.64.0/18
98.129.0.0/21
98.129.8.0/22
98.129.12.0/23
98.129.14.0/25
98.129.14.128/27
98.129.14.160/28
98.129.14.176/29
98.129.14.184/31
98.129.14.186/31
98.129.14.188/30
98.129.14.192/26
98.129.15.0/24
98.129.16.0/20
98.129.32.0/19
98.129.64.0/18
98.129.128.0/18
98.129.192.0/19
98.129.224.0/22
98.129.228.0/24
98.129.230.0/23
98.129.232.0/21
98.129.240.0/20
104.130.124.0/22
104.130.128.0/19
104.130.240.0/20
104.239.128.0/19
104.239.240.0/21
108.166.64.0/19
108.171.176.0/20
146.88.96.0/22
146.88.104.0/21
146.88.116.0/22
147.75.0.0/21
147.75.16.0/24
148.62.0.0/16
151.106.224.0/22
162.209.64.0/20
162.218.136.0/22
162.242.128.0/19
166.78.0.0/18
166.78.128.0/18
166.86.4.0/22
172.99.96.0/19
173.45.248.0/21
173.203.192.0/18
174.143.0.0/18
174.143.64.0/20
174.143.81.0/24
174.143.82.0/23
174.143.84.0/22
174.143.88.0/21
174.143.96.0/19
174.143.128.0/17
192.237.192.0/19
198.61.192.0/19
198.90.20.0/22
198.101.192.0/18
198.254.64.0/21
199.47.220.0/23
199.47.222.0/24
199.79.48.0/22
199.168.172.0/22
199.204.136.0/22
204.107.168.0/24
204.232.192.0/19
208.95.156.0/22
209.61.128.0/19
209.61.160.0/22
209.61.164.0/23
209.61.168.0/21
209.61.176.0/20
209.114.32.0/19
209.163.232.0/21
209.163.248.0/22
216.110.32.0/20

IPv6 prefixes

All 1 prefix.

2001:4800::/32

Other ASNs named Rackspace Hosting

4 other networks use the same organisation name; together with AS33070 they announce 1,606,401 IPv4 addresses.

ASNNameIPv4 addresses

AS19994RACKSPACE - Rackspace Hosting US537,088

AS27357RACKSPACE - Rackspace Hosting US263,936

AS12200RACKSPACE - Rackspace Hosting US5,904

AS54636AS-DBIO - Rackspace Hosting US512

Similar-sized networks in United States

ASNNameIPv4 addresses

AS6181#120 FUSE-NET - Cincinnati Bell Telephone Company LLC819,200

AS46887#121 CROWNCASTLE-AS46887 - Crown Castle Fiber LLC813,312

AS367#122 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)811,776

AS231#124 MISU-231 - Michigan State University783,360

AS11232#125 MIDCO-NET - Midcontinent Communications779,776

AS8103#126 STATE-OF-FLA - Florida Department of Management Services - Division of Telecommunications772,352

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