Skip to main content
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.

53/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Active-threat / abuse risk −12
  • Trust score 53 / 100

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

About Rackspace Technology

Rackspace Technology, Inc. is an American information technology cloud computing company based in San Antonio, Texas.

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

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS19994 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.

PrefixOrigin ASNsLast detected (UTC)
65.61.188.0/24 AS15395, AS19994 2026-10-16 21:14:23
148.62.86.0/24 AS19994, AS33070 2026-10-16 21:14:23

Web3 footprint

AS19994 hosts 1 observed decentralized-network node across 1 network. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
161.47.0.0/16 65.5K
1.8%
Rackspace Hosting US — —
50.56.0.0/17 32.8K
55.6%
Rackspace Hosting US Illinois Chicago
50.57.0.0/17 32.8K
52.9%
Rackspace Hosting US West Virginia Greenstown
173.203.0.0/17 32.8K
51.8%
Rackspace Hosting US — —
184.106.128.0/17 32.8K
82.7%
Rackspace Hosting US — —
23.253.0.0/18 16.4K
2.9%
Rackspace Hosting US Illinois Chicago
50.57.128.0/18 16.4K
83.5%
Rackspace Hosting US — —
74.200.192.0/18 16.4K
24.0%
Rackspace Hosting US — —
108.166.0.0/18 16.4K
13.4%
Rackspace Hosting US — —
162.209.0.0/18 16.4K
2.2%
Rackspace Hosting US — —
166.78.64.0/18 16.4K
1.8%
Rackspace Hosting US — —
166.78.192.0/18 16.4K
3.3%
Rackspace Hosting US — —
184.106.64.0/18 16.4K
53.9%
Rackspace Hosting US — —
192.237.128.0/18 16.4K
1.9%
Rackspace Hosting US — —
198.61.128.0/18 16.4K
2.8%
Rackspace Hosting US Illinois Chicago
198.101.128.0/18 16.4K
12.4%
Rackspace Hosting US — —
23.253.160.0/19 8.2K
1.9%
Rackspace Hosting US — —
23.253.192.0/19 8.2K
1.3%
Rackspace Hosting US — —
50.57.192.0/19 8.2K
12.4%
Rackspace Hosting US — —
67.207.128.0/19 8.2K
67.4%
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
68.0%
Rackspace Hosting US — —
162.242.160.0/19 8.2K
1.4%
Rackspace Hosting US — —
184.106.0.0/19 8.2K
5.1%
Rackspace Hosting US Illinois Chicago
192.237.224.0/19 8.2K
1.3%
Rackspace Hosting US — —
198.61.224.0/19 8.2K
7.5%
Rackspace Hosting US — —
209.20.64.0/19 8.2K
84.2%
Rackspace Hosting US — —
50.57.224.0/20 4.1K
57.9%
Rackspace Hosting US — —
69.170.128.0/20 4.1K
7.5%
Rackspace Hosting US — —
104.130.96.0/20 4.1K
4.8%
Rackspace Hosting US — —
108.171.160.0/20 4.1K
39.8%
Rackspace Hosting US Texas Dallas
162.209.80.0/20 4.1K
0.6%
Rackspace Hosting US — —
173.45.224.0/20 4.1K
82.2%
Rackspace Hosting US — —
184.106.32.0/20 4.1K
4.2%
Rackspace Hosting US — —
104.130.112.0/21 2.0K
2.1%
Rackspace Hosting US — —
147.75.8.0/21 2.0K
0.3%
Rackspace Hosting US — —
173.45.240.0/21 2.0K
92.5%
Rackspace Hosting US — —
184.106.56.0/21 2.0K
5.0%
Rackspace Hosting US — —
198.254.72.0/21 2.0K
0.0%
Rackspace Hosting US — —
208.78.96.0/21 2.0K
87.5%
Rackspace Hosting US — —
74.120.216.0/22 1.0K
6.3%
Rackspace Hosting US — —
146.88.100.0/22 1.0K
2.1%
Rackspace Hosting US — —
146.88.112.0/22 1.0K
3.0%
Rackspace Hosting US — —
146.88.120.0/22 1.0K
1.1%
Rackspace Hosting US — —
162.216.40.0/22 1.0K
9.4%
Rackspace Hosting US — —
184.106.48.0/22 1.0K
3.3%
Rackspace Hosting US — —
199.180.184.0/22 1.0K
14.2%
Rackspace Hosting US — —
204.13.108.0/22 1.0K
8.1%
Rackspace Hosting US — —
216.18.148.0/22 1.0K
0.0%
Rackspace Hosting US — —
64.49.232.0/23 512
8.8%
Rackspace Hosting US — —
66.216.116.0/23 512
0.4%
Rackspace Hosting US — —
184.106.52.0/23 512
1.2%
Rackspace Hosting US — —
199.253.200.0/23 512
0.2%
Rackspace Hosting US — —
209.61.166.0/23 512
1.8%
Rackspace Hosting US — —
134.8.2.0/24 256
0.0%
Rackspace Hosting US — —
184.106.54.0/24 256
26.6%
Rackspace Hosting US — —
204.9.188.0/24 256
62.1%
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
50.57.128.0/18 34,401 2026-10-16 18:30:37
64.49.232.0/23 34,320 2026-10-16 18:30:37
23.253.192.0/19 34,287 2026-10-16 18:30:37
67.207.128.0/19 34,277 2026-10-16 18:30:37
74.200.192.0/18 34,257 2026-10-16 18:30:37
23.253.160.0/19 34,227 2026-10-16 18:30:37
23.253.0.0/18 34,175 2026-10-16 18:30:37
50.57.224.0/20 34,151 2026-10-16 18:30:37
50.57.192.0/19 34,146 2026-10-16 18:30:37
50.57.0.0/17 34,125 2026-10-16 18:30:37
69.170.128.0/20 34,001 2026-10-16 20:25:25
66.216.116.0/23 33,993 2026-10-16 18:30:37
74.120.216.0/22 33,957 2026-10-16 18:30:37
50.56.0.0/17 33,931 2026-10-16 18:30:37
104.130.64.0/20 33,858 2026-10-16 18:30:37
108.166.0.0/18 33,853 2026-10-16 18:30:37
108.171.160.0/20 33,836 2026-10-16 18:30:37
104.130.96.0/20 33,833 2026-10-16 18:30:37
104.130.192.0/19 33,788 2026-10-16 18:30:37
104.130.112.0/21 33,760 2026-10-16 18:30:37
104.130.80.0/20 33,746 2026-10-16 18:30:37
104.239.192.0/19 33,745 2026-10-16 18:30:37
108.166.96.0/19 33,743 2026-10-16 18:30:37
134.8.2.0/24 33,604 2026-10-16 18:30:37
146.88.112.0/22 33,487 2026-10-16 19:37:21
147.75.8.0/22 33,330 2026-10-16 18:30:37
147.75.12.0/22 33,271 2026-10-16 18:30:37
146.88.100.0/22 33,209 2026-10-16 19:37:21
146.88.120.0/22 33,203 2026-10-16 19:37:21
161.47.0.0/18 33,073 2026-10-16 18:30:37
162.242.160.0/19 33,031 2026-10-16 18:30:37
161.47.64.0/18 33,007 2026-10-16 18:30:37
173.45.224.0/20 33,006 2026-10-16 18:30:37
161.47.128.0/17 32,994 2026-10-16 18:30:37
162.216.40.0/22 32,990 2026-10-16 18:30:37
162.209.80.0/20 32,976 2026-10-16 18:30:37
166.78.64.0/18 32,975 2026-10-16 18:30:37
162.209.0.0/18 32,970 2026-10-16 18:30:37
166.78.192.0/18 32,965 2026-10-16 18:30:37
184.106.54.0/24 32,913 2026-10-16 18:30:37
173.203.0.0/17 32,899 2026-10-16 18:30:37
173.45.240.0/21 32,851 2026-10-16 18:30:37
184.106.52.0/23 32,791 2026-10-16 18:30:37
184.106.56.0/21 32,569 2026-10-16 18:30:37
184.106.64.0/18 32,555 2026-10-16 18:30:37
184.106.0.0/19 32,539 2026-10-16 18:30:37
184.106.32.0/20 32,522 2026-10-16 18:30:37
184.106.48.0/22 32,505 2026-10-16 18:30:37
184.106.128.0/17 32,504 2026-10-16 18:30:37
192.237.128.0/18 31,316 2026-10-16 18:30:37

Showing top 50 of 67 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: 2026-10-16 21:24:05 UTC
Share