Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Multiple-origin (MOAS) routing anomaly −12
- Hosting allocation −6
- Trust score 47 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
About Rackspace Technology
Rackspace Technology, Inc. is an American cloud computing company based in San Antonio, Texas.
⚠ 2 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS27357 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 198.210.16.0/21 | AS3356, AS27357 | 2026-07-22 23:23:24 |
| 69.20.95.0/24 | AS27357, AS33070 | 2026-07-22 22:53:24 |
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS27357 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 209.0.201.0/24 | 5,588 | 2026-07-23 16:50:45 |
| 142.0.184.0/22 | 4,350 | 2026-07-23 16:50:45 |
| 198.210.16.0/22 | 4,294 | 2026-07-23 15:40:24 |
| 162.209.96.0/19 | 4,269 | 2026-07-23 16:50:31 |
| 104.239.224.0/20 | 4,267 | 2026-07-23 16:50:31 |
| 198.210.20.0/22 | 4,259 | 2026-07-23 15:40:24 |
| 104.239.160.0/19 | 4,248 | 2026-07-23 16:50:31 |
| 104.239.248.0/21 | 4,245 | 2026-07-23 16:50:31 |
| 159.135.64.0/20 | 4,238 | 2026-07-23 16:50:31 |
| 104.130.160.0/19 | 4,229 | 2026-07-23 16:50:31 |
| 156.43.59.0/24 | 4,210 | 2026-07-23 16:50:45 |
| 72.4.112.0/20 | 4,207 | 2026-07-23 16:51:24 |
| 146.20.0.0/16 | 4,201 | 2026-07-23 16:51:24 |
| 65.61.141.0/24 | 4,201 | 2026-07-23 16:51:24 |
| 104.130.0.0/18 | 4,200 | 2026-07-23 16:51:24 |
| 69.20.0.0/17 | 4,198 | 2026-07-23 16:51:24 |
| 74.205.0.0/19 | 4,195 | 2026-07-23 16:51:24 |
| 65.61.152.0/24 | 4,194 | 2026-07-23 16:51:24 |
| 65.61.142.0/23 | 4,194 | 2026-07-23 16:51:24 |
| 65.61.186.0/23 | 4,193 | 2026-07-23 16:51:24 |
| 173.203.128.0/18 | 4,190 | 2026-07-23 16:51:24 |
| 192.68.40.0/24 | 4,189 | 2026-07-23 16:50:31 |
| 23.253.128.0/19 | 4,189 | 2026-07-23 16:51:24 |
| 204.51.235.0/24 | 4,188 | 2026-07-23 16:50:45 |
| 65.61.146.0/23 | 4,187 | 2026-07-23 16:51:24 |
| 104.130.224.0/20 | 4,187 | 2026-07-23 16:51:24 |
| 162.242.224.0/19 | 4,180 | 2026-07-23 16:51:24 |
| 173.204.89.0/24 | 4,178 | 2026-07-23 16:50:45 |
| 162.242.192.0/19 | 4,173 | 2026-07-23 16:51:24 |
| 204.51.224.0/24 | 4,173 | 2026-07-23 16:50:45 |
| 159.135.254.0/24 | 4,166 | 2026-07-23 16:50:45 |
| 104.130.120.0/22 | 4,165 | 2026-07-23 16:51:24 |
| 172.99.64.0/19 | 4,153 | 2026-07-23 16:51:24 |
| 207.97.192.0/18 | 4,127 | 2026-07-23 16:51:24 |
| 204.232.128.0/18 | 4,082 | 2026-07-23 16:51:24 |
| 204.232.224.0/19 | 4,077 | 2026-07-23 16:51:24 |
| 69.20.95.0/24 | 3,936 | 2026-07-23 16:50:31 |
| 198.210.16.0/21 | 1,270 | 2026-07-23 12:08:56 |
| 173.203.184.90/32 | 48 | 2026-07-23 15:12:21 |
| 173.203.184.86/32 | 48 | 2026-07-23 06:09:51 |
| 173.203.184.85/32 | 48 | 2026-07-23 06:09:51 |
| 173.203.184.88/32 | 47 | 2026-07-23 06:09:51 |
| 173.203.184.91/32 | 47 | 2026-07-23 06:09:51 |
| 204.232.141.25/32 | 46 | 2026-07-23 06:09:51 |
| 173.203.184.87/32 | 46 | 2026-07-23 06:09:51 |
| 173.203.184.94/32 | 46 | 2026-07-23 06:09:51 |
| 173.203.184.89/32 | 46 | 2026-07-23 06:09:51 |
| 204.232.141.24/32 | 46 | 2026-07-23 06:09:51 |
| 173.203.184.93/32 | 46 | 2026-07-23 06:09:51 |
| 173.203.184.84/32 | 46 | 2026-07-23 06:09:51 |
Showing top 50 of 53 announced prefixes by sample volume.
Frequently Asked Questions
What is AS27357?
AS27357 is an Autonomous System Number assigned to Rackspace Hosting. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS27357 announce?
AS27357 announces 262.9K IPv4 addresses distributed across 39 routed CIDR prefixes. The network is registered in United States.
Who operates AS27357?
AS27357 is operated by Rackspace Hosting. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS27357 registered in?
AS27357 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
