AS19957 AT&T Enterprises LLC
General Info - AS19957
276,992
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 2604:f980:2100::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:2500::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:2600::/40 | 309,485,009,821,345,068,724,781,056 | |
| 2604:f980:2d00::/40 | 309,485,009,821,345,068,724,781,056 | |
| 2604:f980:3000::/36 | 4,951,760,157,141,521,099,596,496,896 | |
| 2604:f980:4240::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:4300::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:4360::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:4380::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:4390::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:4480::/44 | 19,342,813,113,834,066,795,298,816 | |
| 2604:f980:5100::/40 | 309,485,009,821,345,068,724,781,056 |
Upstreams
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.
