AS27357 — RACKSPACE

Network type: hosting

AS27357 announces 40 IPv4 prefixes covering 263,168 addresses and 1 IPv6 prefixes.

About this network

One of the Autonomous Systems of Rackspace, a San Antonio, Texas managed cloud and hosting provider. Handle RACKSPACE.

What it's used for

• Managed hosting, dedicated servers, and cloud infrastructure operated on behalf of Rackspace's business customers.

Notable

• An IP here identifies Rackspace as the host, not the operator of whatever runs on it.
• Rackspace announces prefixes from several ASNs (e.g. AS33070, AS22720); which one carries a given block varies by region and history.

Interesting

• Rackspace was an early managed-hosting pioneer and co-founded the OpenStack cloud project with NASA in 2010.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 23.253.128.0/19
• 65.61.141.0/24
• 65.61.142.0/23
• 65.61.146.0/23
• 65.61.152.0/24
• 65.61.186.0/23
• 69.20.0.0/17
• 72.4.112.0/20
• 74.205.0.0/19
• 104.130.0.0/18
• 104.130.120.0/22
• 104.130.160.0/19
• 104.130.224.0/20
• 104.239.160.0/19
• 104.239.224.0/20
• 104.239.248.0/21
• 142.0.184.0/22
• 146.20.0.0/17
• 146.20.128.0/18
• 146.20.192.0/20
• 146.20.208.0/21
• 146.20.216.0/22
• 146.20.224.0/19
• 148.62.86.0/24
• 156.43.59.0/24
• 159.135.64.0/20
• 159.135.254.0/24
• 162.209.96.0/19
• 162.242.192.0/18
• 172.99.64.0/19
• 173.203.128.0/18
• 173.204.89.0/24
• 192.68.40.0/24
• 198.210.16.0/21
• 204.51.224.0/24
• 204.51.235.0/24
• 204.232.128.0/18
• 204.232.224.0/19
• 207.97.192.0/18
• 209.0.201.0/24
• 2001:4802::/32

Upstream networks

• AS12200 Rackspace Hosting

Downstream networks

• AS396479 Mailgun Technologies Inc.

Adjacent networks

• AS12200 Rackspace Hosting
• AS396479 Mailgun Technologies Inc.