| Prefix | Company | Number of IPs |
|---|---|---|
| 23.253.0.0/18 | CORE One-Hour Servers | 16,384 |
| 23.253.160.0/19 | Rackspace Hosting | 8,192 |
| 23.253.192.0/19 | Rackspace Hosting | 8,192 |
| 50.56.0.0/17 | Rackspace Hosting | 32,768 |
| 50.57.0.0/17 | Rackspace Hosting | 32,768 |
| 50.57.128.0/18 | Slicehost | 16,384 |
| 50.57.192.0/19 | Alchemy Systems | 8,192 |
| 50.57.224.0/20 | Rackspace Hosting | 4,096 |
| 64.49.232.0/23 | E-Builders LLC | 512 |
| 65.61.188.0/24 | Rackspace Backbone Engineering | 256 |
| 66.216.116.0/23 | Volusion, Inc. | 512 |
| 67.207.128.0/19 | Rackspace Hosting | 8,192 |
| 69.170.128.0/20 | DataPipe, Inc. | 4,096 |
| 74.120.216.0/22 | Armor Defense Inc | 1,024 |
| 74.200.192.0/18 | DataPipe, Inc. | 16,384 |
| 104.130.64.0/20 | Rackspace US Inc | 4,096 |
| 104.130.80.0/20 | TrueOffice | 4,096 |
| 104.130.96.0/20 | Rackspace Hosting | 4,096 |
| 104.130.112.0/21 | Rackspace Hosting | 2,048 |
| 104.130.192.0/19 | Rackspace Hosting | 8,192 |
| 104.239.192.0/19 | Rackspace Hosting | 8,192 |
| 108.166.0.0/18 | Bobit Business Media | 16,384 |
| 108.166.96.0/19 | Rackspace Hosting | 8,192 |
| 108.171.160.0/20 | Rackspace Hosting | 4,096 |
| 134.8.2.0/24 | ALTIUM | 256 |
| 146.88.100.0/22 | Armor Defense Inc | 1,024 |
| 146.88.112.0/22 | Armor Defense Inc | 1,024 |
| 146.88.120.0/22 | Armor Defense Inc | 1,024 |
| 147.75.8.0/22 | Armor Defense, Inc | 1,024 |
| 147.75.12.0/22 | FireHost, Inc. | 1,024 |
| 161.47.0.0/18 | GENESIS | 16,384 |
| 161.47.64.0/18 | Rackspace Hosting | 16,384 |
| 161.47.128.0/17 | Rackspace Hosting | 32,768 |
| 162.209.0.0/18 | Rackspace Hosting | 16,384 |
| 162.209.80.0/20 | Rackspace Hosting | 4,096 |
| 162.216.40.0/22 | Armor Defense Inc | 1,024 |
| 162.242.160.0/19 | Rackspace Hosting | 8,192 |
| 166.78.64.0/18 | Rackspace Hosting | 16,384 |
| 166.78.192.0/18 | Rackspace Hosting | 16,384 |
| 173.45.224.0/20 | Rackspace | 4,096 |
| 173.45.240.0/21 | Rackspace | 2,048 |
| 173.203.0.0/17 | Rackspace Backbone Engineering | 32,768 |
| 184.106.0.0/19 | Rackspace Hosting | 8,192 |
| 184.106.32.0/20 | Rackspace Hosting | 4,096 |
| 184.106.48.0/22 | Rackspace Hosting | 1,024 |
| 184.106.52.0/23 | Rackspace Hosting | 512 |
| 184.106.54.0/24 | Rackspace Hosting | 256 |
| 184.106.56.0/21 | ISN | 2,048 |
| 184.106.64.0/18 | Rackspace Hosting | 16,384 |
| 184.106.128.0/17 | Rackspace Hosting | 32,768 |
| 192.237.128.0/18 | Rackspace Hosting | 16,384 |
| 192.237.224.0/19 | Cloud Loadbalancing as a Service-LBaaS (ORD) | 8,192 |
| 198.61.128.0/18 | Rackspace Hosting | 16,384 |
| 198.61.224.0/19 | Rackspace Hosting | 8,192 |
| 198.101.128.0/18 | Cloud Loadbalancing as a Service-LBaaS (ORD) | 16,384 |
| 198.254.72.0/21 | Cake Marketing | 2,048 |
| 199.180.184.0/22 | Armor Defense Inc | 1,024 |
| 199.253.200.0/24 | APRIA Healthcare | 256 |
| 199.253.201.0/24 | APRIA Healthcare | 256 |
| 204.9.188.0/24 | Making Sense | 256 |
| 204.13.108.0/22 | Armor Defense Inc | 1,024 |
| 204.51.170.0/24 | DataPipe, Inc. | 256 |
| 208.78.96.0/21 | Rackspace Hosting | 2,048 |
| 209.20.64.0/19 | Rackspace Hosting | 8,192 |
| 209.61.166.0/23 | Inertia Technologies Inc. | 512 |
| 216.18.148.0/22 | Avago Technologies U.S. Inc. | 1,024 |
| 2001:4801::/32 | Rackspace Hosting | 7.92 × 1028 |
IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.
AS19994 has no peers recorded.
Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.
AS19994 uses these Autonomous Systems as its upstreams.
An upstream (or transit provider) is another AS that AS19994 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.
AS19994 provides internet connectivity to these downstream Autonomous Systems.
A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.
Discover your public IP address and detailed information about your connection.
Convert CIDR notation to IP address ranges and vice versa. Useful for network configuration and security.
Perform a reverse DNS (rDNS) lookup to get the hostname for an IP address.
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