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

AS5435

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS5435

NameVELCOM-AS

OrganisationAS5435-MNT

Country –

RIRRIPE NCC

Allocated22.11.2001

Abuse contactripe@cityport.si

Network Overview

IPv4 Prefixes6

IPv6 Prefixes1

Upstreams (Transit)5

Downstreams (Customers)3

BGP Peers3

AS Path (BGP neighbours)

Upstreams (Transit)

AS12778MEGA M, d.o.o.AS14840BR.DIGITAL AS263444Open X Tecnologia Ltda AS6939Hurricane Electric LLC AS9498Bharti Airtel Ltd.

AS5435VELCOM-AS

Downstreams (Customers)

AS197864Infonet Media d.o.o.AS29121Cankarjev dom, kulturni in kongresni center AS44073Zdravstveni Dom Ljubljana

Upstreams (Transit) (5)

AS12778MEGA M, d.o.o.

AS14840BR.DIGITAL

AS263444Open X Tecnologia Ltda

AS6939Hurricane Electric LLC

AS9498Bharti Airtel Ltd.

Downstreams (Customers) (3)

AS197864Infonet Media d.o.o.

AS29121Cankarjev dom, kulturni in kongresni center

AS44073Zdravstveni Dom Ljubljana

IPv4 Prefixes (6)

91.216.87.0/24

212.93.224.0/19

185.178.224.0/24

192.160.15.0/24

185.178.224.0/22

185.178.225.0/24

IPv6 Prefixes (1)

2a02:23d0::/32

BGP Peers (3)

AS198150SIACOM JSC

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS3212Telemach Slovenija d.o.o.

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.