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

AS49895

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS49895

NameDCENTER-AS

OrganisationDCENTER-MNT

Country –

RIRRIPE NCC

Allocated05.10.2009

Abuse contactabuse-ripe@dcenter.pl

Network Overview

IPv4 Prefixes16

IPv6 Prefixes1

Upstreams (Transit)6

Downstreams (Customers)9

BGP Peers3

AS Path (BGP neighbours)

Upstreams (Transit)

AS201054Stowarzyszenie e-Poludnie AS33891Core-Backbone GmbH AS5617Orange Polska Spolka Akcyjna AS6204INTERKVM HOST SRL AS6939Hurricane Electric LLC AS9002RETN Limited

AS49895DCENTER-AS

Downstreams (Customers)

AS16290Tarnowski Osrodek Informacyjny Aleksander Rajski AS203628Televoice Polska Sp. z o.o.AS41331Cure Net Sp. z o.o.AS48424GLOBITEL Sp. z o.o.AS50366AlterTEL Sp. z o.o.AS51146Asean Telecom Sp. z o.o.+3

Upstreams (Transit) (6)

AS201054Stowarzyszenie e-Poludnie

AS33891Core-Backbone GmbH

AS5617Orange Polska Spolka Akcyjna

AS6204INTERKVM HOST SRL

AS6939Hurricane Electric LLC

AS9002RETN Limited

Downstreams (Customers) (9)

AS16290Tarnowski Osrodek Informacyjny Aleksander Rajski

AS203628Televoice Polska Sp. z o.o.

AS41331Cure Net Sp. z o.o.

AS48424GLOBITEL Sp. z o.o.

AS50366AlterTEL Sp. z o.o.

AS51146Asean Telecom Sp. z o.o.

AS56475DATA-COM Piotr Data

AS57897Mobitex Telecom Sp z o.o.

AS61171HEXA OPERATOR SP. Z O.O.

IPv4 Prefixes (16)

46.254.72.0/24

213.5.10.0/24

213.5.13.0/24

213.5.15.0/24

213.5.14.0/24

46.254.79.0/24

46.254.73.0/24

213.5.12.0/24

213.5.8.0/24

213.5.9.0/24

46.254.72.0/22

213.5.11.0/24

46.254.76.0/24

46.254.75.0/24

46.254.74.0/24

213.5.8.0/21

IPv6 Prefixes (1)

2a00:e800::/32

BGP Peers (3)

AS24482SG.GS

AS28917Fiord Networks, UAB

AS49544i3D.net B.V

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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.