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

AS199248

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS199248

NameNUMLOG

OrganisationNML_MNT

Country –

RIRRIPE NCC

Allocated03.10.2012

Abuse contactabuse@numlog.fr

Network Overview

IPv4 Prefixes7

IPv6 Prefixes1

Upstreams (Transit)31

Downstreams (Customers)1

BGP Peers26

AS Path (BGP neighbours)

Upstreams (Transit)

AS12779IT.Gate S.p.A.AS137409GSL Networks Pty LTD AS14840BR.DIGITAL AS20562Open Peering (Broadband Hosting B.V.)AS20764CJSC RASCOM AS20766Association "Gitoyen"+25

AS199248NUMLOG

Downstreams (Customers)

AS210839STJ SAS

Upstreams (Transit) (31)

AS12779IT.Gate S.p.A.

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS20562Open Peering (Broadband Hosting B.V.)

AS20764CJSC RASCOM

AS20766Association "Gitoyen"

AS22356Durand do Brasil Ltda

AS25091IP-Max SA

AS263444Open X Tecnologia Ltda

AS33891Core-Backbone GmbH

AS34019Hivane Association

AS34177Celeste SAS

Downstreams (Customers) (1)

AS210839STJ SAS

IPv4 Prefixes (7)

5.56.40.0/24

5.56.41.0/24

5.56.44.0/24

5.56.45.0/24

5.56.47.0/24

5.56.46.0/24

5.56.43.0/24

IPv6 Prefixes (1)

2a01:46c0::/48

BGP Peers (26)

AS13237euNetworks GmbH

AS15547netplus.ch SA

AS16347ADISTA SAS

AS1828PacketFabric / Unitas Global

AS198150SIACOM JSC

AS198385AlpineDC SA

AS199524Gcore S.A.

AS2027MilkyWan

AS209823Enki Multimedia EURL

AS212483LEVEL EIGHTY-SIX COMMUNICATIONS LTD

AS24482SG.GS

AS25160Vorboss Limited

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.