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

AS42005

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS42005

NameLIGHTSTORM-COMMUNICATIONS-SRO-SK-AS

OrganisationLSS-SK-MNT

Country –

RIRRIPE NCC

Allocated01.12.2006

Abuse contactabuse@lightstorm.services

Network Overview

IPv4 Prefixes18

IPv6 Prefixes1

Upstreams (Transit)15

Downstreams (Customers)4

BGP Peers17

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS14840BR.DIGITAL AS1764Next Layer Telecommunications AS20562Open Peering (Broadband Hosting B.V.)AS22356Durand do Brasil Ltda AS2607Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET+9

AS42005LIGHTSTORM-COMMUNICATIONS-SRO-SK-AS

Downstreams (Customers)

AS51653PRESNET s.r.o.AS57475LightStorm Services s.r.o.AS58014ZUTOM s.r.o.AS65000

Upstreams (Transit) (15)

AS1299Arelion (fka. Telia Carrier)

AS14840BR.DIGITAL

AS1764Next Layer Telecommunications

AS20562Open Peering (Broadband Hosting B.V.)

AS22356Durand do Brasil Ltda

AS2607Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET

AS264409Huge Networks

AS31230SIX.SK Route Servers

AS3303Swisscom (Schweiz) AG

AS39392SH.cz s.r.o.

AS4455IX Reach Ltd

AS6204INTERKVM HOST SRL

AS6663

AS6939

AS8218

Downstreams (Customers) (4)

AS51653PRESNET s.r.o.

AS57475LightStorm Services s.r.o.

AS58014ZUTOM s.r.o.

AS65000

IPv4 Prefixes (18)

92.240.224.0/24

92.240.248.0/24

92.240.239.0/24

92.240.225.0/24

92.240.240.0/24

92.240.252.0/24

92.240.232.0/24

92.240.246.0/24

92.240.238.0/23

92.240.228.0/24

185.78.152.0/22

92.240.233.0/24

185.155.50.0/24

92.240.227.0/24

92.240.250.0/24

92.240.226.0/24

92.240.247.0/24

92.240.238.0/24

IPv6 Prefixes (1)

2a00:10d9::/32

BGP Peers (17)

AS198150SIACOM JSC

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS24482SG.GS

AS28917Fiord Networks, UAB

AS29504Freenet Liberec, z.s.

AS3212Telemach Slovenija d.o.o.

AS35369LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation

AS36236NetActuate, Inc

AS37721Virtual Technologies & Solutions

AS40994Alwyzon (Hohl IT)

AS41327Fiber Telecom S.p.A.

AS47692Nessus GmbH

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.