IPv4 prefix
173.203.0.0/16
- IP Prefix (CIDR)
- 173.203.0.0/16
- Subnet Mask
- 255.255.0.0
- Address Count
- 65,536
Registration 1 of 3
- Owner
- Rackspace Hosting
- Handle
- RACKS-8
- Address
- 1718 Dry Creek Way Ste 115 San Antonio TX 78259-1837 United States
- Registry
- ARIN
- Registered Prefix
- 173.203.0.0/16 (173.203.0.0 - 173.203.255.255)
Registration 2 of 3
- Owner
- Rackspace Backbone Engineering
- Handle
- C02394558
- Address
- 9725 Datapoint Drive, Suite 100 San Antonio TX 78229 United States
- Registry
- ARIN
- Registered Prefix
- 173.203.0.0/22 (173.203.0.0 - 173.203.3.255)
- Delegated Prefix
- 173.203.0.0/16 (173.203.0.0 - 173.203.255.255)
Registration 3 of 3
- Owner
- Legisym
- Handle
- C05005934
- Address
- 6544A S General Bruce Dr. Temple TX 76502 United States
- Registry
- ARIN
- Registered Prefix
- 173.203.128.0/28 (173.203.128.0 - 173.203.128.15)
- Delegated Prefix
- 173.203.0.0/16 (173.203.0.0 - 173.203.255.255)
| Announced Prefix | Relationship | Origin ASN | Description | Country | First Address | Last Address |
|---|---|---|---|---|---|---|
| 173.203.0.0/17 | More specific | AS19994 | Rackspace Hosting |
United States of America (US)
|
173.203.0.0 | 173.203.127.255 |
| 173.203.128.0/18 | More specific | AS27357 | Rackspace Hosting |
United States of America (US)
|
173.203.128.0 | 173.203.191.255 |
| 173.203.192.0/18 | More specific | AS33070 | Rackspace Hosting |
United States of America (US)
|
173.203.192.0 | 173.203.255.255 |