Hosting and cloud
AS27357 RACKSPACEASN lookup: IP ranges, prefixes and network type
AS27357 is the autonomous system number (ASN) announced by RACKSPACE. It announces 38 prefixes, 258,560 IPv4 addresses in total. Every address inside those ranges is routed by this operator, which is what makes the number the shortest answer to who runs a given address.
Directory data is unavailable at the moment, so the prefix list and the range membership counts are missing from this page. What you can see comes from the committed snapshot and is accurate as far as it goes. Try again shortly.
AS27357 at a glance
| Organisation | RACKSPACE |
|---|---|
| Autonomous system | AS27357 |
| Network type | Hosting and cloud |
| IPv4 prefixes | Unavailable |
| IPv6 prefixes | Unavailable |
| IPv4 addresses | 258,560Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale. |
| In known VPN ranges | Unavailable |
| In known datacenter ranges | Unavailable |
Look up an address on AS27357
Paste an address from your own logs. You get the network that announces it, the operator, and the verdict for that specific address.
What AS27357 means for detection
Addresses on RACKSPACE are infrastructure: servers, containers and managed services, not people at home. Our engine classifies them datacenter or hosting and never as VPN, because renting a machine is not anonymising traffic. That distinction matters for what you do next. A signup from here is worth a second look because automation lives on networks like this one, but blocking the range outright also blocks every monitoring service, payment webhook and corporate proxy that runs on it.
The verdict for a single address is never settled by the ASN alone. It is the starting point, and IP Detection adds range membership, behaviour and history on top of it before it answers.
Related networks
The same page as JSON
No key and no signup. This is the endpoint this page is rendered from, so anything you read here you can script against.
curl https://ipscanner.io/v1/asn/directory/AS27357
IPScanner. AS27357 RACKSPACE, ASN directory. https://ipscanner.io/es/asn/as27357. Derived from MaxMind GeoLite2.