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

AS41421

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS41421

NameAS-SNT

OrganisationMNT-STARNET-PL

Country –

RIRRIPE NCC

Allocated17.08.2006

Abuse contactabuse@starnettelecom.pl

Network Overview

IPv4 Prefixes26

IPv6 Prefixes2

Upstreams (Transit)14

Downstreams (Customers)10

BGP Peers5

AS Path (BGP neighbours)

Upstreams (Transit)

AS12741Netia SA AS12912T-Mobile Polska S.A.AS13194UAB "Bite Lietuva"AS137409GSL Networks Pty LTD AS14840BR.DIGITAL AS201054Stowarzyszenie e-Poludnie+8

AS41421AS-SNT

Downstreams (Customers)

AS15443Gremi Media SA AS199369Freenet Telecom Sp. z o.o.AS204204Point72 UK Limited AS208100R.Power S.A.AS29275MIRATECH CONSULTING LLC AS394265Box.com+4

Upstreams (Transit) (14)

AS12741Netia SA

AS12912T-Mobile Polska S.A.

AS13194UAB "Bite Lietuva"

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS201054Stowarzyszenie e-Poludnie

AS24115Equinix IX

AS29632Netassist International EOOD

AS3356Lumen (Level 3)

AS35320Eurotranstelecom Ltd

AS5617Orange Polska Spolka Akcyjna

AS6939Hurricane Electric LLC

AS9002

AS9009

Downstreams (Customers) (10)

AS15443Gremi Media SA

AS199369Freenet Telecom Sp. z o.o.

AS204204Point72 UK Limited

AS208100R.Power S.A.

AS29275MIRATECH CONSULTING LLC

AS394265Box.com

AS47290HAITONG BANK SA

AS48023StarNet Telecom Sp. z o.o.

AS59948StarNet Telecom Sp. z o.o.

AS8635Hewlett Packard France S.A.S.

IPv4 Prefixes (26)

159.253.240.0/21

185.194.212.0/23

37.157.200.0/21

31.214.137.0/24

31.214.145.0/24

89.250.192.0/20

194.5.180.0/24

193.91.12.0/23

185.53.133.0/24

91.132.112.0/23

185.170.65.0/24

185.194.214.0/24

89.35.60.0/23

193.23.174.0/24

193.91.4.0/24

185.128.156.0/22

188.65.40.0/21

93.115.39.0/24

185.53.132.0/24

185.194.215.0/24

31.214.140.0/24

86.106.22.0/24

185.53.134.0/23

103.248.24.0/24

31.214.138.0/24

185.104.155.0/24

IPv6 Prefixes (2)

2a01:b8e0::/32

2a02:4c80::/32

BGP Peers (5)

AS198150SIACOM JSC

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS24482SG.GS

AS36236NetActuate, Inc

AS49544i3D.net B.V

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.