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

AS20552

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS20552

NameHORYZONT

OrganisationHORYZONT-MNT

Country –

RIRRIPE NCC

Allocated07.12.2001

Abuse contactabuse@horyzont.net

Network Overview

IPv4 Prefixes26

IPv6 Prefixes1

Upstreams (Transit)5

Downstreams (Customers)29

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS29314VECTRA S.A.AS50606Horyzont Technologie Internetowe sp.z.o.o.AS6939Hurricane Electric LLC AS9002RETN Limited

AS20552HORYZONT

Downstreams (Customers)

AS196887URZAD MARSZALKOWSKI WOJEWODZTWA WIELKOPOLSKIEGO AS197227Poznanska Spoldzielnia Mieszkaniowa "Winogrady" w Poznaniu AS197645GCI Sp. z o.o.AS198865PRESS-SERVICE Monitoring Mediow sp. z o.o.AS200369Transgourmet Polska Sp. z o.o.AS201169All for One Poland Sp. z o.o.+23

Upstreams (Transit) (5)

AS1299Arelion (fka. Telia Carrier)

AS29314VECTRA S.A.

AS50606Horyzont Technologie Internetowe sp.z.o.o.

AS6939Hurricane Electric LLC

AS9002RETN Limited

Downstreams (Customers) (29)

AS196887URZAD MARSZALKOWSKI WOJEWODZTWA WIELKOPOLSKIEGO

AS197227Poznanska Spoldzielnia Mieszkaniowa "Winogrady" w Poznaniu

AS197645GCI Sp. z o.o.

AS198865PRESS-SERVICE Monitoring Mediow sp. z o.o.

AS200369Transgourmet Polska Sp. z o.o.

AS201169All for One Poland Sp. z o.o.

AS203920MM Brown Polska Sp. z o.o.

AS204447TRECOM Poznan Sp. z o.o.

AS204559PROMONOTES Sp. z o.o.

AS204766NETeter s.c. Michal Siwczak, Pawel Jarmuszkiewicz

AS206523Poznan University of Technology

AS207033DTnet Adam Tarkowski Aneta Wyrwas s.c.

IPv4 Prefixes (26)

93.105.73.0/24

164.40.240.0/24

185.52.168.0/22

164.40.247.0/24

164.40.242.0/24

185.119.13.0/24

91.216.30.0/24

93.105.74.0/24

178.235.241.0/24

178.235.240.0/24

164.40.245.0/24

185.52.170.0/24

185.24.200.0/22

164.40.240.0/21

91.198.28.0/24

164.40.246.0/24

164.40.241.0/24

185.119.12.0/22

93.105.72.0/24

164.40.244.0/24

185.52.169.0/24

91.199.97.0/24

217.168.129.0/24

185.52.171.0/24

164.40.243.0/24

217.168.128.0/20

IPv6 Prefixes (1)

2a02:d88::/32

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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.