Autonomous System
AS391 Air Force Systems Networking
GovernmentActiveUnited StatesARIN
AS391 (AFCONC-BLOCK1-AS) is a government network operated by Air Force Systems Networking in United States, registered with ARIN. It has 40 IPv4 prefixes with 285,952 addresses, which makes it the 980th largest of 82,283 active autonomous systems by IPv4 space.
IPv4 addresses285,952in 40 prefixes
IPv6 prefixes0none
Size rank#980of 82,283 active ASNs
Details
OrganizationAir Force Systems Networking
AS nameAFCONC-BLOCK1-AS
Websiteaf.mil
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactdisa.columbus.ns.mbx.arin-registrations@mail.mil
Registered1989-08-04
Last updated2008-06-06
IPv4 prefixes
40 prefixes · 285,952 addresses| Network | Addresses | First – last address |
|---|---|---|
| 128.202.0.0/16 | 65,536 | 128.202.0.0 – 128.202.255.255 |
| 128.236.0.0/16 | 65,536 | 128.236.0.0 – 128.236.255.255 |
| 137.0.0.0/16 | 65,536 | 137.0.0.0 – 137.0.255.255 |
| 137.11.0.0/16 | 65,536 | 137.11.0.0 – 137.11.255.255 |
| 131.15.48.0/20 | 4,096 | 131.15.48.0 – 131.15.63.255 |
| 131.15.64.0/20 | 4,096 | 131.15.64.0 – 131.15.79.255 |
| 131.15.40.0/21 | 2,048 | 131.15.40.0 – 131.15.47.255 |
| 131.15.144.0/21 | 2,048 | 131.15.144.0 – 131.15.151.255 |
| 131.15.160.0/21 | 2,048 | 131.15.160.0 – 131.15.167.255 |
| 143.141.96.0/22 | 1,024 | 143.141.96.0 – 143.141.99.255 |
| 131.15.38.0/23 | 512 | 131.15.38.0 – 131.15.39.255 |
| 131.15.90.0/23 | 512 | 131.15.90.0 – 131.15.91.255 |
| 131.15.98.0/23 | 512 | 131.15.98.0 – 131.15.99.255 |
| 131.15.44.0/24 | 256 | 131.15.44.0 – 131.15.44.255 |
| 131.15.60.0/24 | 256 | 131.15.60.0 – 131.15.60.255 |
| 131.15.65.0/24 | 256 | 131.15.65.0 – 131.15.65.255 |
| 131.15.80.0/24 | 256 | 131.15.80.0 – 131.15.80.255 |
| 131.15.88.0/24 | 256 | 131.15.88.0 – 131.15.88.255 |
| 131.15.92.0/24 | 256 | 131.15.92.0 – 131.15.92.255 |
| 131.15.120.0/24 | 256 | 131.15.120.0 – 131.15.120.255 |
| 131.15.136.0/24 | 256 | 131.15.136.0 – 131.15.136.255 |
| 131.15.208.0/24 | 256 | 131.15.208.0 – 131.15.208.255 |
| 131.15.233.0/24 | 256 | 131.15.233.0 – 131.15.233.255 |
| 131.15.234.0/24 | 256 | 131.15.234.0 – 131.15.234.255 |
| 131.15.235.0/24 | 256 | 131.15.235.0 – 131.15.235.255 |
128.202.0.0/16 128.236.0.0/16 137.0.0.0/16 137.11.0.0/16 131.15.48.0/20 131.15.64.0/20 131.15.40.0/21 131.15.144.0/21 131.15.160.0/21 143.141.96.0/22 131.15.38.0/23 131.15.90.0/23 131.15.98.0/23 131.15.44.0/24 131.15.60.0/24 131.15.65.0/24 131.15.80.0/24 131.15.88.0/24 131.15.92.0/24 131.15.120.0/24 131.15.136.0/24 131.15.208.0/24 131.15.233.0/24 131.15.234.0/24 131.15.235.0/24
The 25 largest of 40. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS391 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=AS391&key=YOUR_API_KEY"Any address in its prefixes resolves to AS391, with or without a key:
curl "https://api.ipapi.is/?q=128.202.0.1"Other networks of Air Force Systems Networking
AS409 Air Force Systems Networking270,848 IPv4 addressesAS399 Air Force Systems Networking152,832 IPv4 addressesAS427 Air Force Systems Networking133,376 IPv4 addressesAS745 Air Force Systems Networking33,280 IPv4 addresses
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