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

AS5550

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS5550

NameTASK-AS

OrganisationAS5550-MNT

Country –

RIRRIPE NCC

Allocated01.01.1970

Abuse contactabuse@task.gda.pl

Network Overview

IPv4 Prefixes1

IPv6 Prefixes1

Upstreams (Transit)7

Downstreams (Customers)3

BGP Peers5

AS Path (BGP neighbours)

Upstreams (Transit)

AS14840BR.DIGITAL AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center AS22356Durand do Brasil Ltda AS24748THINX WAW Route Servers AS264409Huge Networks AS43171Lukasz Rafal Hamerski trading as Maxnet+1

AS5550TASK-AS

Downstreams (Customers)

AS12827Wirtualna Polska Media S.A.AS12831Technical University of Gdansk, Academic Computer Center TASK AS34999PRO INTERNET Sp. z o.o.

Upstreams (Transit) (7)

AS14840BR.DIGITAL

AS196844Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center

AS22356Durand do Brasil Ltda

AS24748THINX WAW Route Servers

AS264409Huge Networks

AS43171Lukasz Rafal Hamerski trading as Maxnet

AS8501Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center

Downstreams (Customers) (3)

AS12827Wirtualna Polska Media S.A.

AS12831Technical University of Gdansk, Academic Computer Center TASK

AS34999PRO INTERNET Sp. z o.o.

IPv4 Prefixes (1)

153.19.0.0/16

IPv6 Prefixes (1)

2001:4070::/33

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.