IPv4 Address Space Allocation
List of the IPv4 address space found in this database, given the size of the delegated IP range
- 1.128.0.0.0/1128.0.0.0 - 255.255.255.2551
- 2.77.0.0.0/3RIPE NCC1
- 3.116.0.0.0/6Asia Pacific Network Information Centre1
- 4.193.0.0.0/6To determine the registration information for a more1
- 5.29.0.0.0/8DoD Network Information Center16 777 216
- 6.150.0.0.0/8Early registration addresses16 777 216
- 7.25.0.0.0/8No name16 777 216
- 8.12.0.0.0/8Parent: ATT16 777 216
- 9.128.0.0.0/8RIPE NCC16 777 216
- 10.16.0.0.0/8Hewlett-Packard Company16 777 216
- 11.7.0.0.0/8DoD Network Information Center16 777 216
- 12.153.0.0.0/8Early registration addresses16 777 216
- 13.57.0.0.0/8SITA-Societe Internationale de Telecommunications Aeronautiques16 777 216
- 14.21.0.0.0/8DoD Network Information Center16 777 216
- 15.55.0.0.0/8Headquarters, USAISC16 777 216
- 16.3.0.0.0/8General Electric Company16 777 216
- 17.56.0.0.0/8United States Postal Service.16 777 216
- 18.51.0.0.0/8UK Government Department for Work and Pensions16 777 216
- 19.17.0.0.0/8Apple Inc.16 777 216
- 20.14.0.0.0/8Asia Pacific Network Information Centre16 777 216
- 21.32.0.0.0/8AT&T Global Network Services, LLC16 777 216
- 22.127.0.0.0/8Internet Assigned Numbers Authority16 777 216
- 23.33.0.0.0/8DoD Network Information Center16 777 216
- 24.18.0.0.0/8Massachusetts Institute of Technology16 777 216
- 25.163.0.0.0/8Early registration addresses16 777 216
- 26.4.0.0.0/8Level 3 Parent, LLC16 777 216
- 27.126.0.0.0/8Japan Nation-wide Network of Softbank Corp.16 777 216
- 28.8.0.0.0/8Level 3 Communications, Inc.16 777 216
- 29.73.0.0.0/8Parent: NET7316 777 216
- 30.54.0.0.0/8Merck and Co., Inc.16 777 216
- 31.34.0.0.0/8Halliburton Company16 777 216
- 32.10.0.0.0/8Internet Assigned Numbers Authority16 777 216
- 33.52.0.0.0/8E.I. du Pont de Nemours and Co., Inc.16 777 216
- 34.9.0.0.0/8IBM16 777 216
- 35.20.0.0.0/8Computer Sciences Corporation16 777 216
- 36.19.0.0.0/8Ford Motor Company16 777 216
- 37.53.0.0.0/8Daimler AG16 777 216
- 38.15.0.0.0/8Parent: NET1516 777 216
- 39.30.0.0.0/8DoD Network Information Center16 777 216
- 40.28.0.0.0/8DoD Network Information Center16 777 216
- 41.22.0.0.0/8DoD Network Information Center16 777 216
- 42.6.0.0.0/8Headquarters, USAISC16 777 216
- 43.185.0.0.0/8To determine the registration information for a more16 777 216
- 44.214.0.0.0/8DoD Network Information Center16 777 216
- 45.105.0.0.0/8AfriNIC - www.afrinic.net16 777 216
- 46.11.0.0.0/8DoD Network Information Center16 777 216
- 47.26.0.0.0/8DoD Network Information Center16 777 216
- 48.13.0.0.0/8Xerox Corporation16 777 216
- 49.215.0.0.0/8DoD Network Information Center16 777 216
- 50.44.0.0.0/8Amateur Radio Digital Communications16 777 216