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

AS51500

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS51500

NameSERVISNET-AS

OrganisationBA1112-mnt

Country –

RIRRIPE NCC

Allocated28.06.2016

Abuse contactabuse@kopiyka.net

Network Overview

IPv4 Prefixes23

IPv6 Prefixes1

Upstreams (Transit)61

Downstreams (Customers)10

BGP Peers58

AS Path (BGP neighbours)

Upstreams (Transit)

AS12552GlobalConnect (IP-Only)AS12577MMC GmbH AS1267WIND TRE S.P.A.AS12687User Association of Ukrainian Research and Academic Network URAN AS12779IT.Gate S.p.A.AS12859BIT BV+55

AS51500SERVISNET-AS

Downstreams (Customers)

AS15742JSC Commercial Bank "PrivatBank"AS198105SK-TECH LLC AS199697LLC "IT PROSTEER"AS204288LTD "ITLUX"AS210987Lviv Communal Enterprise "Municipal IT Center"AS39315Comcor Service LLC+4

Upstreams (Transit) (61)

AS12552GlobalConnect (IP-Only)

AS12577MMC GmbH

AS1267WIND TRE S.P.A.

AS12687User Association of Ukrainian Research and Academic Network URAN

AS12779IT.Gate S.p.A.

AS12859BIT BV

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS15802Emirates Integrated Telecommunications Company PJSC

AS15958CETIN Ltd. Belgrade

AS1764Next Layer Telecommunications

AS1836green.ch AG

Downstreams (Customers) (10)

AS15742JSC Commercial Bank "PrivatBank"

AS198105SK-TECH LLC

AS199697LLC "IT PROSTEER"

AS204288LTD "ITLUX"

AS210987Lviv Communal Enterprise "Municipal IT Center"

AS39315Comcor Service LLC

AS49827IE KHOMA YURY ROMANOVICH

AS49984"Telecomunikatsiina Companiya" Ltd

AS56797FOP Ruban Nataliya

AS60777PP 'Halytska informatsiina merezha'

IPv4 Prefixes (23)

93.171.154.0/24

5.59.198.0/24

31.148.50.0/24

95.47.197.0/24

31.148.50.0/23

109.235.12.0/23

45.89.89.0/24

109.235.13.0/24

95.47.56.0/24

45.89.88.0/24

146.158.73.0/24

91.197.240.0/24

95.47.196.0/24

109.235.10.0/23

109.235.12.0/24

45.89.90.0/24

45.89.91.0/24

45.89.88.0/22

109.235.10.0/24

185.17.127.0/24

31.148.51.0/24

109.235.11.0/24

95.47.196.0/23

IPv6 Prefixes (1)

2a07:f3c0::/29

BGP Peers (58)

AS13237euNetworks GmbH

AS142271EWS DS Networks Inc

AS14630Invesco Group Services, Inc.

AS15547netplus.ch SA

AS17639Converge ICT Solutions Inc.

AS18106Viewqwest Pte Ltd

AS1828PacketFabric / Unitas Global

AS198150SIACOM JSC

AS198385AlpineDC SA

AS199524Gcore S.A.

AS199938Netzwerge GmbH

AS205112PHILUNET GmbH

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.