ASN Lookup

AS15412 · Flag Telecom UK Limited

An Autonomous System (AS) is a network run by one operator, like an ISP, with its own number on the internet. See who owns it, its IP prefixes, and its upstreams.

Try:AS4800 AS7713 AS15169 jetorbit telkom

AS15412live in BGP

Flag Telecom UK Limited

nameFLAG-AS

countryUnited Kingdom (GB)

rirRIPE NCC

registeredSep 18, 2002

updatedDec 17, 2025

abuse[email protected]

Upstreams

Networks that sell this AS its internet transit.

AS174COGENT-174 - Cogent Communications, LLC AS1299TWELVE99 Arelion Sweden AB AS6939HURRICANE - Hurricane Electric LLC AS2914NTT-DATA-2914 - NTT America, Inc.AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.

37 networks below it (downstream)

Announced prefixes · 19 IPv4 · 1 IPv6

json ↗

43.248.216.0/22
45.125.188.0/22
62.216.128.0/19
80.77.0.0/20
80.81.64.0/19
85.95.24.0/22
103.5.160.0/22
103.8.84.0/24
103.8.85.0/24
103.8.86.0/24
103.8.87.0/24
103.11.237.0/24
103.15.116.0/22
103.103.152.0/22
103.144.202.0/23
103.225.192.0/22
203.79.35.0/24
203.79.37.0/24
203.79.39.0/24
2001:1a00::/32

Upstream graphTransit paths from this AS up to the tier-1 networks. Click a node to open that AS.

building the graph from BGP paths…