AS21508 Comcast Cable Communications LLC
General Info - AS21508
71,424
77,371,252,455,336,318,720,802,816
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 50.204.101.0/24 | 256 | |
| 50.205.217.0/24 | 256 | |
| 50.216.229.0/24 | 256 | |
| 50.217.1.0/24 | 256 | |
| 50.217.207.0/24 | 256 | |
| 50.218.47.0/24 | 256 | |
| 50.219.12.0/22 | 1,024 | |
| 50.228.113.0/24 | 256 | |
| 50.229.113.0/24 | 256 | |
| 50.229.114.0/24 | 256 | |
| 50.235.34.0/24 | 256 | |
| 141.104.0.0/16 | 65,536 | |
| 157.240.147.0/24 | 256 | |
| 157.240.148.0/24 | 256 | |
| 173.242.174.0/24 | 256 | |
| 198.90.112.0/22 | 1,024 | |
| 204.194.47.0/24 | 256 | |
| 205.223.19.0/24 | 256 |
| Netblock | Number of IPs | |
|---|---|---|
| 2001:559:8a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c0::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:f7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:220::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:243::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:280::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:37d::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:3ac::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:3b9::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:3c8::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:40a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:49a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:49b::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:53c::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:5c9::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:5db::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:72b::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:73c::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:788::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:78a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:79d::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:79e::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:7a7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:7db::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:804c::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:81bf::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:81d7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:81d8::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8201::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:82fd::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:833e::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8416::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:841c::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8445::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:84a7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8535::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:85c1::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:85ff::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8604::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:871a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:875f::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:8773::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:87b2::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c071::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c0f6::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c0f7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c10a::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c174::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c1a5::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c1ca::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c28f::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c290::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c2a7::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c344::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c3e9::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c458::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c45f::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c460::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c4c8::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c4c9::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c4db::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c4f6::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c515::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2001:559:c538::/48 | 1,208,925,819,614,629,174,706,176 |
Upstreams
Downstreams
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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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