ASN Lookup – Networks, Upstreams and Prefixes

AS2856

ASN

RIPE NCC

RIR

483

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS2856

NameBT-UK-AS

OrganisationBTNET-INFRA-MNT

Country –

RIRRIPE NCC

Allocated30.08.2002

Abuse contactabuse@bt.com

Network Overview

IPv4 Prefixes483

IPv6 Prefixes7

Upstreams IPv410

BGP Peers IPv4389

Upstreams (Transit Providers)

IPv4

AS1267 ASN-WINDTRE

AS13030 INIT7

AS137409 GSLNETWORKS-AS-AP

AS215638 AS-CILIX-LIMITED

AS30844 LIQUID-AS

AS3303 SWISSCOM

AS4455 BSO

AS50304 BLIX

AS5400 BT

AS5405 INTERDOTLINK

IPv4 Prefixes (483 total, showing 20)

193.33.199.0/24

79.132.64.0/24

217.32.0.0/12

151.240.192.0/22

192.65.224.0/24

40.27.28.0/24

51.64.32.0/24

149.117.130.0/24

178.78.112.0/21

132.153.251.0/24

192.65.219.0/24

62.244.37.0/24

84.46.194.0/24

85.88.224.0/20

62.244.36.0/24

46.248.120.0/22

78.105.97.0/24

194.227.72.0/24

15.145.20.0/22

188.172.168.0/21

IPv6 Prefixes (7 total)

2a01:4c8:f400::/48

2001:4878:c259::/48

2a02:ee80:4176::/47

2a00:2380::/25

2a03:1e82:90ff::/48

2a01:4c8::/29

2a01:4c8:f401::/48

BGP Peers IPv4 (389 total, showing 20)

AS11031

AS11528

AS11939

AS12200

AS12222

AS12440

AS1267

AS12713

AS13009

AS13037

AS131993

AS13205

AS13213

AS13237

AS13458

AS137409

AS14630

AS14766

AS14931

AS15141

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.