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

AS10049

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS10049

NameSKNET-AS-KR

Country

RIRAPNIC

Abuse contacthostmaster@nic.or.kr

Network Overview

IPv4 Prefixes28

IPv6 Prefixes0

Upstreams (Transit)4

Downstreams (Customers)2

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS137409GSL Networks Pty LTD AS9318SK Broadband Co Ltd AS9848SEJONG NETWORKS AS9957KINX

AS10049SKNET-AS-KR

Downstreams (Customers)

AS17570SK Global co., Ltd AS9286KINX

Upstreams (Transit) (4)

AS137409GSL Networks Pty LTD

AS9318SK Broadband Co Ltd

AS9848SEJONG NETWORKS

AS9957KINX

Downstreams (Customers) (2)

AS17570SK Global co., Ltd

AS9286KINX

IPv4 Prefixes (28)

49.50.62.0/24

211.45.32.0/20

203.235.208.0/20

203.242.120.0/22

211.45.62.0/24

210.211.64.0/19

211.45.48.0/20

182.50.32.0/19

168.154.244.0/22

124.66.185.0/24

203.235.224.0/19

203.242.72.0/21

203.242.64.0/21

203.242.80.0/20

211.45.32.0/19

124.66.178.0/24

211.45.60.0/24

211.45.61.0/24

203.242.124.0/22

61.97.0.0/20

211.45.60.0/23

168.154.231.0/24

211.45.51.0/24

168.154.0.0/16

49.50.35.0/24

49.50.32.0/19

203.235.192.0/21

124.66.176.0/20

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.