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

AS10158

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS10158

NameKAKAO-10158-AS-KR-KR

Country

RIRAPNIC

Abuse contacthostmaster@nic.or.kr

Network Overview

IPv4 Prefixes23

IPv6 Prefixes6

Upstreams (Transit)49

Downstreams (Customers)4

BGP Peers67

AS Path (BGP neighbours)

Upstreams (Transit)

AS12577MMC GmbH AS1267WIND TRE S.P.A.AS1299Arelion (fka. Telia Carrier)AS137409GSL Networks Pty LTD AS14840BR.DIGITAL AS15958CETIN Ltd. Belgrade+43

AS10158KAKAO-10158-AS-KR-KR

Downstreams (Customers)

AS152199Kakao Corp AS18160Kakao Corp AS38099Kakao Corp AS7625Kakao Corp

Upstreams (Transit) (49)

AS12577MMC GmbH

AS1267WIND TRE S.P.A.

AS1299Arelion (fka. Telia Carrier)

AS137409GSL Networks Pty LTD

AS14840BR.DIGITAL

AS15958CETIN Ltd. Belgrade

AS17557Pakistan Telecommunication Company Limited

AS1764Next Layer Telecommunications

AS17676SoftBank Corp.

AS1836green.ch AG

AS20562Open Peering (Broadband Hosting B.V.)

AS20764CJSC RASCOM

Downstreams (Customers) (4)

AS152199Kakao Corp

AS18160Kakao Corp

AS38099Kakao Corp

AS7625Kakao Corp

IPv4 Prefixes (23)

210.103.242.0/24

139.150.0.0/22

113.61.106.0/23

211.176.34.0/24

139.150.4.0/24

210.103.244.0/24

139.150.4.0/22

139.150.6.0/24

103.27.150.0/24

103.27.150.0/23

113.61.107.0/24

139.150.5.0/24

139.150.7.0/24

210.103.243.0/24

103.27.151.0/24

210.103.247.0/24

210.103.245.0/24

210.103.241.0/24

211.183.250.0/24

113.61.106.0/24

210.103.246.0/24

211.231.96.0/24

210.103.240.0/24

IPv6 Prefixes (6)

2404:4600:c4::/48

2404:4600:bd::/48

2404:4600::/32

2404:4600:dc3::/48

2404:4600:c3::/48

2404:4600:dc4::/48

BGP Peers (67)

AS12779IT.Gate S.p.A.

AS12859BIT BV

AS13237euNetworks GmbH

AS133210EN Technologies Pte Ltd

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

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.