AS55219 Cisco Systems Inc.
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 172.110.204.0/23 | 172.110.204.0 | 172.110.205.255 | 512 | |
| 172.110.206.0/23 | 172.110.206.0 | 172.110.207.255 | 512 | |
| 198.148.78.0/23 | 198.148.78.0 | 198.148.79.255 | 512 |
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 2620:28:c000::/48 | 2620:28:c000:: | 2620:28:c000:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121::/48 | 2620:121:: | 2620:121:0:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:1::/48 | 2620:121:1:: | 2620:121:1:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:2::/48 | 2620:121:2:: | 2620:121:2:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:3::/48 | 2620:121:3:: | 2620:121:3:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:4::/48 | 2620:121:4:: | 2620:121:4:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:5::/48 | 2620:121:5:: | 2620:121:5:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:6::/48 | 2620:121:6:: | 2620:121:6:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:7::/48 | 2620:121:7:: | 2620:121:7:ffff:ffff:ffff:ffff:ffff | 1.21 Septillion | |
| 2620:121:8::/45 | 2620:121:8:: | 2620:121:f:ffff:ffff:ffff:ffff:ffff | 9.67 Septillion |
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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