Autonomous System
AS1637 Headquarters, USAISC
GovernmentActiveUnited StatesARIN
AS1637 (DNIC-AS-01637) is a government network operated by Headquarters, USAISC in United States, registered with ARIN. It has 111 IPv4 prefixes with 230,400 addresses and 1 IPv6 prefix, which makes it the 1,153rd largest of 82,223 active autonomous systems by IPv4 space.
IPv4 addresses230,400in 111 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#1,153of 82,223 active ASNs
Details
OrganizationHeadquarters, USAISC
AS nameDNIC-AS-01637
Websitewww.army.mil
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactdisa.columbus.ns.mbx.arin-registrations@mail.mil
Registered2004-05-12
Last updated2011-08-24
IPv4 prefixes
111 prefixes · 230,400 addresses| Network | Addresses | First – last address |
|---|---|---|
| 143.46.0.0/16 | 65,536 | 143.46.0.0 – 143.46.255.255 |
| 155.5.0.0/16 | 65,536 | 155.5.0.0 – 155.5.255.255 |
| 155.6.0.0/16 | 65,536 | 155.6.0.0 – 155.6.255.255 |
| 143.68.152.0/21 | 2,048 | 143.68.152.0 – 143.68.159.255 |
| 6.134.24.0/22 | 1,024 | 6.134.24.0 – 6.134.27.255 |
| 143.46.116.0/22 | 1,024 | 143.46.116.0 – 143.46.119.255 |
| 143.46.120.0/22 | 1,024 | 143.46.120.0 – 143.46.123.255 |
| 143.46.164.0/22 | 1,024 | 143.46.164.0 – 143.46.167.255 |
| 143.46.8.0/23 | 512 | 143.46.8.0 – 143.46.9.255 |
| 143.46.128.0/23 | 512 | 143.46.128.0 – 143.46.129.255 |
| 143.46.130.0/23 | 512 | 143.46.130.0 – 143.46.131.255 |
| 143.46.134.0/23 | 512 | 143.46.134.0 – 143.46.135.255 |
| 155.5.142.0/23 | 512 | 155.5.142.0 – 155.5.143.255 |
| 6.16.88.0/24 | 256 | 6.16.88.0 – 6.16.88.255 |
| 6.16.89.0/24 | 256 | 6.16.89.0 – 6.16.89.255 |
| 143.46.5.0/24 | 256 | 143.46.5.0 – 143.46.5.255 |
| 143.46.10.0/24 | 256 | 143.46.10.0 – 143.46.10.255 |
| 143.46.11.0/24 | 256 | 143.46.11.0 – 143.46.11.255 |
| 143.46.12.0/24 | 256 | 143.46.12.0 – 143.46.12.255 |
| 143.46.17.0/24 | 256 | 143.46.17.0 – 143.46.17.255 |
| 143.46.18.0/24 | 256 | 143.46.18.0 – 143.46.18.255 |
| 143.46.20.0/24 | 256 | 143.46.20.0 – 143.46.20.255 |
| 143.46.21.0/24 | 256 | 143.46.21.0 – 143.46.21.255 |
| 143.46.22.0/24 | 256 | 143.46.22.0 – 143.46.22.255 |
| 143.46.23.0/24 | 256 | 143.46.23.0 – 143.46.23.255 |
143.46.0.0/16 155.5.0.0/16 155.6.0.0/16 143.68.152.0/21 6.134.24.0/22 143.46.116.0/22 143.46.120.0/22 143.46.164.0/22 143.46.8.0/23 143.46.128.0/23 143.46.130.0/23 143.46.134.0/23 155.5.142.0/23 6.16.88.0/24 6.16.89.0/24 143.46.5.0/24 143.46.10.0/24 143.46.11.0/24 143.46.12.0/24 143.46.17.0/24 143.46.18.0/24 143.46.20.0/24 143.46.21.0/24 143.46.22.0/24 143.46.23.0/24
The 25 largest of 111. The API and the database have all of them.
IPv6 prefixes
1 prefix- 2608:c141:30::/48
2608:c141:30::/48
Query AS1637 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS1637&key=YOUR_API_KEY"Any address in its prefixes resolves to AS1637, with or without a key:
curl "https://api.ipapi.is/?q=143.46.0.1"Other networks of Headquarters, USAISC
6 of 13AS1540 Headquarters, USAISC7,259,136 IPv4 addressesAS4010 Headquarters, USAISC1,176,832 IPv4 addressesAS1602 Headquarters, USAISC235,520 IPv4 addressesAS1649 Headquarters, USAISC149,760 IPv4 addressesAS1530 Headquarters, USAISC138,496 IPv4 addressesAS747 Headquarters, USAISC137,728 IPv4 addresses
Largest networks in United States
AS749 United States Department of Defense (DoD)227,464,192 IPv4 addressesAS16509 Amazon.com, Inc.218,190,592 IPv4 addressesAS7018 AT&T Enterprises, LLC117,261,824 IPv4 addressesAS8075 Microsoft Corporation81,464,064 IPv4 addressesAS721 United States Department of Defense (DoD)73,070,080 IPv4 addressesAS7922 Comcast Cable Communications, LLC68,336,896 IPv4 addresses