AS3781 U.S. Department of the Interior
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 137.227.32.0/19 | 8,192 | |
| 137.227.104.0/21 | 2,048 | |
| 137.227.112.0/21 | 2,048 | |
| 137.227.120.0/22 | 1,024 | |
| 137.227.124.0/24 | 256 | |
| 137.227.128.0/22 | 1,024 | |
| 137.227.132.0/23 | 512 | |
| 137.227.135.0/24 | 256 | |
| 137.227.137.0/24 | 256 | |
| 137.227.138.0/23 | 512 | |
| 137.227.140.0/22 | 1,024 | |
| 137.227.148.0/22 | 1,024 | |
| 137.227.152.0/22 | 1,024 | |
| 137.227.156.0/23 | 512 | |
| 137.227.202.0/23 | 512 | |
| 137.227.205.0/24 | 256 | |
| 137.227.206.0/23 | 512 | |
| 137.227.208.0/20 | 4,096 | |
| 192.135.180.0/24 | 256 | |
| 192.251.43.0/24 | 256 | |
| 192.251.44.0/24 | 256 | |
| 192.251.45.0/24 | 256 | |
| 199.5.235.0/24 | 256 | |
| 199.5.236.0/23 | 512 | |
| 206.197.40.0/24 | 256 |
| Netblock | Number of IPs |
|---|
Upstreams
There are no upstreams for this ASN.
Downstreams
There are no downstreams for this ASN.
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
