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

AS24187

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS24187

NameKIRZ-AS-TH

OrganisationKIRZ Company Limited

Country

RIRAPNIC

Allocated04.09.2008

Abuse contactgun@kirz.com

Network Overview

IPv4 Prefixes95

IPv6 Prefixes1

Upstreams (Transit)5

Downstreams (Customers)3

BGP Peers1

AS Path (BGP neighbours)

Upstreams (Transit)

AS2914NTT America, Inc.AS38082True International Gateway Co., Ltd.AS45430SBN-IIG/AWN-IIG transit provider AS4651The Communications Authority of Thailand (CAT)AS9304HGC Global Communications Limited

AS24187KIRZ-AS-TH

Downstreams (Customers)

AS136158UOB Asset Management (Thailand) Co., Ltd.AS45197Boonthavorn Co., Ltd.AS9931National Telecom Public Company Limited

Upstreams (Transit) (5)

AS2914NTT America, Inc.

AS38082True International Gateway Co., Ltd.

AS45430SBN-IIG/AWN-IIG transit provider

AS4651The Communications Authority of Thailand (CAT)

AS9304HGC Global Communications Limited

Downstreams (Customers) (3)

AS136158UOB Asset Management (Thailand) Co., Ltd.

AS45197Boonthavorn Co., Ltd.

AS9931National Telecom Public Company Limited

IPv4 Prefixes (95)

27.131.188.0/24

38.225.104.0/24

27.131.165.0/24

103.109.60.0/24

202.173.220.0/24

27.131.169.0/24

27.131.144.0/24

27.131.177.0/24

27.131.184.0/24

103.109.60.0/22

27.131.174.0/24

27.131.158.0/24

202.173.221.0/24

27.131.155.0/24

202.173.215.0/24

27.131.131.0/24

202.173.213.0/24

202.173.212.0/24

27.131.150.0/24

27.131.130.0/24

27.131.179.0/24

27.131.166.0/24

27.131.156.0/24

27.131.149.0/24

27.131.185.0/24

27.131.161.0/24

27.131.138.0/24

202.173.222.0/24

27.131.163.0/24

80.174.163.0/24

27.131.141.0/24

38.58.186.0/24

27.131.140.0/24

27.131.167.0/24

202.173.223.0/24

27.131.145.0/24

27.131.190.0/24

202.173.214.0/24

27.131.132.0/24

202.173.209.0/24

27.131.170.0/24

80.174.161.0/24

27.131.147.0/24

27.131.148.0/24

27.131.189.0/24

27.131.183.0/24

202.173.216.0/24

38.225.99.0/24

27.131.175.0/24

38.225.105.0/24

27.131.153.0/24

27.131.154.0/24

27.131.152.0/24

27.131.129.0/24

27.131.168.0/24

27.131.187.0/24

27.131.157.0/24

27.131.180.0/24

27.131.171.0/24

202.173.208.0/20

27.131.191.0/24

80.174.144.0/24

80.174.160.0/24

27.131.164.0/24

27.131.139.0/24

27.131.181.0/24

103.109.63.0/24

27.131.162.0/24

202.173.217.0/24

27.131.135.0/24

27.131.146.0/24

27.131.133.0/24

27.131.182.0/24

103.109.61.0/24

80.174.162.0/24

27.131.173.0/24

27.131.160.0/24

202.173.210.0/24

202.173.211.0/24

27.131.142.0/24

80.174.145.0/24

27.131.176.0/24

27.131.134.0/24

103.109.62.0/24

27.131.137.0/24

27.131.128.0/18

202.173.219.0/24

27.131.151.0/24

27.131.128.0/24

202.173.208.0/24

27.131.186.0/24

27.131.136.0/24

27.131.178.0/24

202.173.218.0/24

27.131.143.0/24

IPv6 Prefixes (1)

2407:7a00::/32

BGP Peers (1)

AS24482SG.GS

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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.