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Autonomous System

AS19994

Rackspace Hosting

Announced IPs
537,088
CIDR prefixes
60
ASN
AS19994

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.

59/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Hosting allocation −6
  • Trust score 59 / 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.

Founded
1998
Headquarters
San Antonio
Industry
web hosting service
Employees
4,852

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
161.47.0.0/16 65.5K
1.7%
Rackspace Hosting US
50.56.0.0/17 32.8K
54.7%
Rackspace Hosting US Illinois Chicago
50.57.0.0/17 32.8K
51.3%
Rackspace Hosting US West Virginia Greenstown
173.203.0.0/17 32.8K
47.6%
Rackspace Hosting US
184.106.128.0/17 32.8K
73.8%
Rackspace Hosting US
23.253.0.0/18 16.4K
2.9%
Rackspace Hosting US Illinois Chicago
50.57.128.0/18 16.4K
80.8%
Rackspace Hosting US
74.200.192.0/18 16.4K
22.3%
Rackspace Hosting US
108.166.0.0/18 16.4K
13.0%
Rackspace Hosting US
162.209.0.0/18 16.4K
2.2%
Rackspace Hosting US
166.78.64.0/18 16.4K
1.0%
Rackspace Hosting US
166.78.192.0/18 16.4K
1.9%
Rackspace Hosting US
184.106.64.0/18 16.4K
49.6%
Rackspace Hosting US
192.237.128.0/18 16.4K
1.4%
Rackspace Hosting US
198.61.128.0/18 16.4K
2.2%
Rackspace Hosting US Illinois Chicago
198.101.128.0/18 16.4K
7.6%
Rackspace Hosting US
23.253.160.0/19 8.2K
2.0%
Rackspace Hosting US
23.253.192.0/19 8.2K
1.3%
Rackspace Hosting US
50.57.192.0/19 8.2K
12.3%
Rackspace Hosting US
67.207.128.0/19 8.2K
60.3%
Rackspace Hosting US
104.130.64.0/19 8.2K
1.4%
Rackspace Hosting US Illinois Chicago
104.130.192.0/19 8.2K
2.0%
Rackspace Hosting US
104.239.192.0/19 8.2K
0.7%
Rackspace Hosting US
108.166.96.0/19 8.2K
65.5%
Rackspace Hosting US
162.242.160.0/19 8.2K
1.4%
Rackspace Hosting US
184.106.0.0/19 8.2K
4.8%
Rackspace Hosting US Illinois Chicago
192.237.224.0/19 8.2K
1.0%
Rackspace Hosting US
198.61.224.0/19 8.2K
6.2%
Rackspace Hosting US
209.20.64.0/19 8.2K
57.3%
Rackspace Hosting US
50.57.224.0/20 4.1K
55.7%
Rackspace Hosting US
69.170.128.0/20 4.1K
7.5%
Rackspace Hosting US
104.130.96.0/20 4.1K
4.6%
Rackspace Hosting US
108.171.160.0/20 4.1K
35.6%
Rackspace Hosting US Texas Dallas
162.209.80.0/20 4.1K
0.6%
Rackspace Hosting US
173.45.224.0/20 4.1K
77.9%
Rackspace Hosting US
184.106.32.0/20 4.1K
3.9%
Rackspace Hosting US
104.130.112.0/21 2.0K
2.1%
Rackspace Hosting US
147.75.8.0/21 2.0K
0.2%
Rackspace Hosting US
173.45.240.0/21 2.0K
87.4%
Rackspace Hosting US
184.106.56.0/21 2.0K
4.8%
Rackspace Hosting US
198.254.72.0/21 2.0K
0.0%
Rackspace Hosting US
208.78.96.0/21 2.0K
77.2%
Rackspace Hosting US
74.120.216.0/22 1.0K
5.7%
Rackspace Hosting US
146.88.100.0/22 1.0K
1.6%
Rackspace Hosting US
146.88.112.0/22 1.0K
2.1%
Rackspace Hosting US
146.88.120.0/22 1.0K
0.8%
Rackspace Hosting US
162.216.40.0/22 1.0K
9.0%
Rackspace Hosting US
184.106.48.0/22 1.0K
3.1%
Rackspace Hosting US
199.180.184.0/22 1.0K
12.9%
Rackspace Hosting US
204.13.108.0/22 1.0K
7.7%
Rackspace Hosting US
216.18.148.0/22 1.0K
0.0%
Rackspace Hosting US
64.49.232.0/23 512
7.4%
Rackspace Hosting US
66.216.116.0/23 512
0.4%
Rackspace Hosting US
184.106.52.0/23 512
0.8%
Rackspace Hosting US
199.253.200.0/23 512
0.0%
Rackspace Hosting US
209.61.166.0/23 512
0.8%
Rackspace Hosting US
134.8.2.0/24 256
0.0%
Rackspace Hosting US
184.106.54.0/24 256
25.4%
Rackspace Hosting US
204.9.188.0/24 256
32.0%
Rackspace Hosting US
204.51.170.0/24 256
0.8%
Rackspace Hosting US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS19994 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
184.106.54.0/24 5,362 2026-07-23 16:51:30
134.8.2.0/24 5,332 2026-07-23 16:51:30
204.9.188.0/24 5,318 2026-07-23 16:51:29
204.51.170.0/24 5,291 2026-07-23 16:51:07
199.253.200.0/24 5,198 2026-07-23 16:41:10
199.253.201.0/24 5,194 2026-07-23 16:41:10
23.253.192.0/19 5,127 2026-07-23 16:51:10
23.253.0.0/18 5,123 2026-07-23 16:51:10
23.253.160.0/19 5,119 2026-07-23 16:51:10
67.207.128.0/19 5,117 2026-07-23 16:51:10
66.216.116.0/23 5,108 2026-07-23 16:51:10
50.57.192.0/19 5,105 2026-07-23 16:51:10
69.170.128.0/20 5,105 2026-07-23 16:51:10
50.57.224.0/20 5,104 2026-07-23 16:51:10
74.120.216.0/22 5,104 2026-07-23 16:51:10
64.49.232.0/23 5,101 2026-07-23 16:51:10
50.57.128.0/18 5,097 2026-07-23 16:51:10
50.57.0.0/17 5,095 2026-07-23 16:51:10
50.56.0.0/17 5,095 2026-07-23 16:51:10
74.200.192.0/18 5,094 2026-07-23 16:51:10
104.239.192.0/19 5,093 2026-07-23 16:50:47
161.47.0.0/18 5,084 2026-07-23 16:50:47
173.45.240.0/21 5,077 2026-07-23 16:50:47
161.47.64.0/18 5,076 2026-07-23 16:50:47
173.203.0.0/17 5,076 2026-07-23 16:51:10
108.171.160.0/20 5,072 2026-07-23 16:51:10
173.45.224.0/20 5,072 2026-07-23 16:50:47
162.209.80.0/20 5,070 2026-07-23 16:50:47
108.166.96.0/19 5,068 2026-07-23 16:51:10
108.166.0.0/18 5,068 2026-07-23 16:51:10
104.130.112.0/21 5,066 2026-07-23 16:51:10
104.130.96.0/20 5,064 2026-07-23 16:51:10
166.78.192.0/18 5,063 2026-07-23 16:51:10
104.130.64.0/20 5,063 2026-07-23 16:51:10
104.130.80.0/20 5,061 2026-07-23 16:51:10
147.75.12.0/22 5,060 2026-07-23 16:51:10
146.88.112.0/22 5,060 2026-07-23 16:51:10
147.75.8.0/22 5,060 2026-07-23 16:51:10
161.47.128.0/17 5,059 2026-07-23 16:50:47
146.88.120.0/22 5,059 2026-07-23 16:51:10
146.88.100.0/22 5,059 2026-07-23 16:51:10
166.78.64.0/18 5,059 2026-07-23 16:51:10
162.209.0.0/18 5,057 2026-07-23 16:50:47
104.130.192.0/19 5,057 2026-07-23 16:51:10
184.106.64.0/18 5,055 2026-07-23 16:51:10
184.106.56.0/21 5,050 2026-07-23 16:51:10
162.242.160.0/19 5,049 2026-07-23 16:51:10
184.106.32.0/20 5,048 2026-07-23 16:51:10
184.106.0.0/19 5,047 2026-07-23 16:51:10
184.106.128.0/17 5,045 2026-07-23 16:51:10

Showing top 50 of 66 announced prefixes by sample volume.

Frequently Asked Questions

What is AS19994?

AS19994 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 AS19994 announce?

AS19994 announces 537.1K IPv4 addresses distributed across 60 routed CIDR prefixes. The network is registered in United States.

Who operates AS19994?

AS19994 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 AS19994 registered in?

AS19994 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-23 16:55:32 UTC
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