Autonomous System

AS5400 · BT

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

bgp.tools RIPEstat

Announced IPs

730k

IPv4

IPv4 Prefixes

IPv6 Prefixes

Hosted Domains

270

resolve into this AS

Peers

102

Customers

AS Profile

AS Name

Also known as

British Telecom

AS Type

NSP

Scope

Europe

Traffic

1-5Tbps

Website

http://www.bt.net

IRR AS-SET

AS-BT-EU

RIR

RIPE NCC

Country

Allocated

1995-08-15

RPKI Validity

Total ROAs

875

Valid Prefixes

NotFound

Announced (BGP)

119

RPKI Coverage

77.3%

Geographic Footprint

Countries where this AS's scanned IPs are geolocated, by open-IP count.

248

139

103

Top Open Ports

Most common open ports across IPs in this AS (last 30 days).

Port	Open IPs
443	55
179	20
8089	17
22	9
5060	9
80	7
5061	6
646	5
53	3
1720	3
8666	2
8443	2
10443	2
3268	2
2087	2

Upstreams

AS1299

AS2914

AS3356

AS4637

AS6762