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

AS42927

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS42927

NameS-NET-AS

OrganisationMNT-SZARANET

Country –

RIRRIPE NCC

Allocated10.05.2007

Abuse contactnoc@s-net.pl

Network Overview

IPv4 Prefixes34

IPv6 Prefixes3

Upstreams (Transit)12

Downstreams (Customers)21

BGP Peers3

AS Path (BGP neighbours)

Upstreams (Transit)

AS13194UAB "Bite Lietuva"AS137409GSL Networks Pty LTD AS201054Stowarzyszenie e-Poludnie AS24115Equinix IX AS29632Netassist International EOOD AS3356Lumen (Level 3)+6

AS42927S-NET-AS

Downstreams (Customers)

AS15541Marcin Bochenek trading as CETI s.c.AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNE AS197572CITYNET MARCIN SOBALA - PIOTR MISIUDA AS197887Energit Sp. z o.o.AS198199VSOFT S.A.AS199409FarmaProm Polska Sp. z o.o. Sp. K+15

Upstreams (Transit) (12)

AS13194UAB "Bite Lietuva"

AS137409GSL Networks Pty LTD

AS201054Stowarzyszenie e-Poludnie

AS24115Equinix IX

AS29632Netassist International EOOD

AS3356Lumen (Level 3)

AS35320Eurotranstelecom Ltd

AS39249Netassist International EOOD

AS49559A-Systems Sp. z o.o.

AS6939Hurricane Electric LLC

AS9002RETN Limited

AS9009M247 Europe SRL

Downstreams (Customers) (21)

AS15541Marcin Bochenek trading as CETI s.c.

AS197113MAGDALENA ZANETA MARCZUK trading as LCS SYSTEMY TELEINFORMATYCZNE

AS197572CITYNET MARCIN SOBALA - PIOTR MISIUDA

AS197887Energit Sp. z o.o.

AS198199VSOFT S.A.

AS199409FarmaProm Polska Sp. z o.o. Sp. K

AS203066Aporia Rafal Kaczmarczyk

AS204841AVSystem sp. z o. o.

AS206910Janusz Ciurus trading as Bestconnect

AS208892DAINET Jaroslaw Drejer

AS210272GlobalLogic Poland Sp. z o.o.

AS210287GMINA MIEJSKA KRAKOW - URZAD MIASTA KRAKOWA

IPv4 Prefixes (34)

80.82.29.0/24

80.82.16.0/23

185.28.16.0/24

80.82.18.0/23

46.22.170.0/24

91.198.137.0/24

46.22.163.0/24

94.124.2.0/23

94.124.7.0/24

94.124.5.0/24

94.124.8.0/21

94.124.6.0/24

80.82.26.0/23

185.91.215.0/24

94.124.0.0/24

80.82.25.0/24

91.217.182.0/24

94.124.4.0/24

46.22.169.0/24

46.22.167.0/24

185.157.82.0/24

91.189.250.0/24

213.210.35.0/24

46.22.173.0/24

185.157.80.0/23

46.22.160.0/24

91.189.248.0/21

80.82.28.0/24

185.28.16.0/22

46.22.164.0/23

80.82.22.0/24

80.82.30.0/23

80.82.20.0/23

46.22.168.0/24

IPv6 Prefixes (3)

2a02:f7f:14::/48

2a02:f78::/32

2a07:a440::/30

BGP Peers (3)

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.