AS2856 British Telecommunications Plc
General Info - AS2856
15,283,712
9,223,372,036,854,775,808
IP Address Ranges
| Netblock | Number of IPs | |
|---|---|---|
| 2001:4878:c259::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2a00:2380::/25 | 10,141,204,801,825,835,211,973,625,643,008 | |
| 2a01:4c8:f400::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2a01:4c8:f401::/48 | 1,208,925,819,614,629,174,706,176 | |
| 2a02:ee80:4176::/47 | 2,417,851,639,229,258,349,412,352 | |
| 2a03:1e82:90ff::/48 | 1,208,925,819,614,629,174,706,176 |
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.
