AS4 University of Southern California
General Info - AS4
66,816
79.23 Octillion
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 128.9.0.0/20 | 128.9.0.0 | 128.9.15.255 | 4,096 | |
| 128.9.16.0/24 | 128.9.16.0 | 128.9.16.255 | 256 | |
| 128.9.17.0/24 | 128.9.17.0 | 128.9.17.255 | 256 | |
| 128.9.18.0/24 | 128.9.18.0 | 128.9.18.255 | 256 | |
| 128.9.19.0/24 | 128.9.19.0 | 128.9.19.255 | 256 | |
| 128.9.20.0/22 | 128.9.20.0 | 128.9.23.255 | 1,024 | |
| 128.9.24.0/23 | 128.9.24.0 | 128.9.25.255 | 512 | |
| 128.9.26.0/24 | 128.9.26.0 | 128.9.26.255 | 256 | |
| 128.9.27.0/24 | 128.9.27.0 | 128.9.27.255 | 256 | |
| 128.9.28.0/23 | 128.9.28.0 | 128.9.29.255 | 512 | |
| 128.9.30.0/24 | 128.9.30.0 | 128.9.30.255 | 256 | |
| 128.9.31.0/24 | 128.9.31.0 | 128.9.31.255 | 256 | |
| 128.9.32.0/23 | 128.9.32.0 | 128.9.33.255 | 512 | |
| 128.9.34.0/24 | 128.9.34.0 | 128.9.34.255 | 256 | |
| 128.9.35.0/24 | 128.9.35.0 | 128.9.35.255 | 256 | |
| 128.9.36.0/24 | 128.9.36.0 | 128.9.36.255 | 256 | |
| 128.9.37.0/24 | 128.9.37.0 | 128.9.37.255 | 256 | |
| 128.9.38.0/24 | 128.9.38.0 | 128.9.38.255 | 256 | |
| 128.9.39.0/24 | 128.9.39.0 | 128.9.39.255 | 256 | |
| 128.9.40.0/24 | 128.9.40.0 | 128.9.40.255 | 256 | |
| 128.9.41.0/24 | 128.9.41.0 | 128.9.41.255 | 256 | |
| 128.9.42.0/24 | 128.9.42.0 | 128.9.42.255 | 256 | |
| 128.9.43.0/24 | 128.9.43.0 | 128.9.43.255 | 256 | |
| 128.9.44.0/24 | 128.9.44.0 | 128.9.44.255 | 256 | |
| 128.9.45.0/24 | 128.9.45.0 | 128.9.45.255 | 256 | |
| 128.9.46.0/24 | 128.9.46.0 | 128.9.46.255 | 256 | |
| 128.9.47.0/24 | 128.9.47.0 | 128.9.47.255 | 256 | |
| 128.9.48.0/20 | 128.9.48.0 | 128.9.63.255 | 4,096 | |
| 128.9.64.0/20 | 128.9.64.0 | 128.9.79.255 | 4,096 | |
| 128.9.80.0/20 | 128.9.80.0 | 128.9.95.255 | 4,096 | |
| 128.9.96.0/20 | 128.9.96.0 | 128.9.111.255 | 4,096 | |
| 128.9.112.0/24 | 128.9.112.0 | 128.9.112.255 | 256 | |
| 128.9.113.0/24 | 128.9.113.0 | 128.9.113.255 | 256 | |
| 128.9.114.0/23 | 128.9.114.0 | 128.9.115.255 | 512 | |
| 128.9.116.0/24 | 128.9.116.0 | 128.9.116.255 | 256 | |
| 128.9.117.0/24 | 128.9.117.0 | 128.9.117.255 | 256 | |
| 128.9.118.0/23 | 128.9.118.0 | 128.9.119.255 | 512 | |
| 128.9.120.0/23 | 128.9.120.0 | 128.9.121.255 | 512 | |
| 128.9.122.0/24 | 128.9.122.0 | 128.9.122.255 | 256 | |
| 128.9.123.0/24 | 128.9.123.0 | 128.9.123.255 | 256 | |
| 128.9.124.0/23 | 128.9.124.0 | 128.9.125.255 | 512 | |
| 128.9.126.0/24 | 128.9.126.0 | 128.9.126.255 | 256 | |
| 128.9.127.0/24 | 128.9.127.0 | 128.9.127.255 | 256 | |
| 128.9.128.0/20 | 128.9.128.0 | 128.9.143.255 | 4,096 | |
| 128.9.144.0/20 | 128.9.144.0 | 128.9.159.255 | 4,096 | |
| 128.9.160.0/20 | 128.9.160.0 | 128.9.175.255 | 4,096 | |
| 128.9.176.0/20 | 128.9.176.0 | 128.9.191.255 | 4,096 | |
| 128.9.192.0/18 | 128.9.192.0 | 128.9.255.255 | 16,384 | |
| 198.32.16.0/24 | 198.32.16.0 | 198.32.16.255 | 256 | |
| 206.117.6.0/24 | 206.117.6.0 | 206.117.6.255 | 256 | |
| 206.117.27.0/24 | 206.117.27.0 | 206.117.27.255 | 256 | |
| 206.117.31.0/24 | 206.117.31.0 | 206.117.31.255 | 256 | |
| 206.117.37.0/24 | 206.117.37.0 | 206.117.37.255 | 256 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2001:500:202::/48 | 2001:500:202:: | 2001:500:202:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2001:1878:401::/48 | 2001:1878:401:: | 2001:1878:401:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2001:1878:402::/48 | 2001:1878:402:: | 2001:1878:402:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2001:1878:403::/48 | 2001:1878:403:: | 2001:1878:403:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2001:1878:404::/48 | 2001:1878:404:: | 2001:1878:404:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2606:d5c0::/48 | 2606:d5c0:: | 2606:d5c0:0:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2606:d5c0:1::/48 | 2606:d5c0:1:: | 2606:d5c0:1:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2606:d5c0:2::/47 | 2606:d5c0:2:: | 2606:d5c0:3:ffff:ffff:ffff:ffff:ffff | 2.42 Septillion | |
| 2606:d5c0:4::/46 | 2606:d5c0:4:: | 2606:d5c0:7:ffff:ffff:ffff:ffff:ffff | 4.84 Septillion | |
| 2606:d5c0:8::/45 | 2606:d5c0:8:: | 2606:d5c0:f:ffff:ffff:ffff:ffff:ffff | 9.67 Septillion | |
| 2606:d5c0:10::/44 | 2606:d5c0:10:: | 2606:d5c0:1f:ffff:ffff:ffff:ffff:ffff | 19.34 Septillion | |
| 2606:d5c0:20::/43 | 2606:d5c0:20:: | 2606:d5c0:3f:ffff:ffff:ffff:ffff:ffff | 38.69 Septillion | |
| 2606:d5c0:40::/42 | 2606:d5c0:40:: | 2606:d5c0:7f:ffff:ffff:ffff:ffff:ffff | 77.37 Septillion | |
| 2606:d5c0:80::/41 | 2606:d5c0:80:: | 2606:d5c0:ff:ffff:ffff:ffff:ffff:ffff | 154.74 Septillion | |
| 2606:d5c0:100::/40 | 2606:d5c0:100:: | 2606:d5c0:1ff:ffff:ffff:ffff:ffff:ffff | 309.49 Septillion | |
| 2606:d5c0:200::/39 | 2606:d5c0:200:: | 2606:d5c0:3ff:ffff:ffff:ffff:ffff:ffff | 618.97 Septillion | |
| 2606:d5c0:400::/38 | 2606:d5c0:400:: | 2606:d5c0:7ff:ffff:ffff:ffff:ffff:ffff | 1.24 Octillion | |
| 2606:d5c0:800::/37 | 2606:d5c0:800:: | 2606:d5c0:fff:ffff:ffff:ffff:ffff:ffff | 2.48 Octillion | |
| 2606:d5c0:1000::/36 | 2606:d5c0:1000:: | 2606:d5c0:1fff:ffff:ffff:ffff:ffff:ffff | 4.95 Octillion | |
| 2606:d5c0:2000::/35 | 2606:d5c0:2000:: | 2606:d5c0:3fff:ffff:ffff:ffff:ffff:ffff | 9.90 Octillion | |
| 2606:d5c0:4000::/34 | 2606:d5c0:4000:: | 2606:d5c0:7fff:ffff:ffff:ffff:ffff:ffff | 19.81 Octillion | |
| 2606:d5c0:8000::/33 | 2606:d5c0:8000:: | 2606:d5c0:ffff:ffff:ffff:ffff:ffff:ffff | 39.61 Octillion |
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.
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