An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS12390

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS12390

NameKINGSTON-UK-AS

OrganisationKINGSTON-MNT

Country –

RIRRIPE NCC

Allocated12.09.2002

Abuse contactabuse@kcom.com

Network Overview

IPv4 Prefixes18

IPv6 Prefixes2

Upstreams (Transit)43

Downstreams (Customers)1

BGP Peers39

AS Path (BGP neighbours)

Upstreams (Transit)

AS12552GlobalConnect (IP-Only)AS1267WIND TRE S.P.A.AS12779IT.Gate S.p.A.AS137409GSL Networks Pty LTD AS14840BR.DIGITAL AS15802Emirates Integrated Telecommunications Company PJSC+37

AS12390KINGSTON-UK-AS

Downstreams (Customers)

AS203067GIACOM (CLOUD) LIMITED

Upstreams (Transit) (43)

AS12552GlobalConnect (IP-Only)

AS1267WIND TRE S.P.A.

AS12779IT.Gate S.p.A.

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS15802Emirates Integrated Telecommunications Company PJSC

AS174Cogent Communications, LLC

AS20562Open Peering (Broadband Hosting B.V.)

AS20764CJSC RASCOM

AS21215UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd

AS215638Cilix Limited

AS25091IP-Max SA

Downstreams (Customers) (1)

AS203067GIACOM (CLOUD) LIMITED

IPv4 Prefixes (18)

213.249.192.0/18

212.50.160.0/19

194.207.128.0/19

194.207.64.0/19

87.102.0.0/17

94.72.192.0/18

194.207.160.0/19

77.86.0.0/17

5.198.0.0/17

194.207.96.0/19

185.188.232.0/22

194.207.224.0/19

194.207.192.0/19

185.199.56.0/22

178.78.64.0/18

213.249.128.0/18

83.100.128.0/17

159.253.64.0/20

IPv6 Prefixes (2)

2a00:4902::/32

2a00:4900::/32

BGP Peers (39)

AS12969Ljósleiðarinn ehf (Sýn)

AS13237euNetworks GmbH

AS14630Invesco Group Services, Inc.

AS15692Razorblue Ltd

AS16347ADISTA SAS

AS17639Converge ICT Solutions Inc.

AS18106Viewqwest Pte Ltd

AS1828PacketFabric / Unitas Global

AS198150SIACOM JSC

AS207841Inferno Communications Ltd

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS213241TECHIT.BE SRL

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.