Autonomous System Overview

AS2856: BT (British Telecommunications)

UK national telecommunications operator operating Openreach fiber infrastructure, BT Home Broadband, and EE cellular network.

Network Specification & Registry DataActive / Announced

Autonomous System (ASN)

AS2856

Organization / Holder

British Telecommunications PLC

Registry (RIR)

RIPE NCC

Traffic Classification

Transit / ISP

Registered Country

United Kingdom (GB)

Estimated IP Pool

18,000,000+

Announced IP Subnet Ranges (CIDR Prefixes)

The following sample CIDR routing prefixes are advertised and routed by AS2856 across global BGP border tables:

81.128.0.0/11

86.128.0.0/11

109.144.0.0/12