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

AS9931

ASN

APNIC

RIR

631

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS9931

NameNTPCL-AS-AP

OrganisationNational Telecom Public Company Limited

Country

RIRAPNIC

Allocated20.11.2025

Abuse contactpitoon.p@ntplc.co.th

Network Overview

IPv4 Prefixes631

IPv6 Prefixes43

Upstreams (Transit)4

Downstreams (Customers)54

BGP Peers1

AS Path (BGP neighbours)

Upstreams (Transit)

AS23900Planet Online Laos, Internet Service Provider in LAO PDR AS24187KIRZ Service Provider AS38040TOT Public Company Limited AS4651The Communications Authority of Thailand (CAT)

AS9931NTPCL-AS-AP

Downstreams (Customers)

AS131089National Telecom Public Company Limited AS132133SB.Furniture House Co.,Ltd AS132879Rajabhat Mahasarakham University AS133947Metropolitan Electricity Authority AS134565National Telecom Public Company Limited AS134695Mass Rapid Transit Authority of Thailand+48

Upstreams (Transit) (4)

AS23900Planet Online Laos, Internet Service Provider in LAO PDR

AS24187KIRZ Service Provider

AS38040TOT Public Company Limited

AS4651The Communications Authority of Thailand (CAT)

Downstreams (Customers) (54)

AS131089National Telecom Public Company Limited

AS132133SB.Furniture House Co.,Ltd

AS132879Rajabhat Mahasarakham University

AS133947Metropolitan Electricity Authority

AS134565National Telecom Public Company Limited

AS134695Mass Rapid Transit Authority of Thailand

AS134811Treasury Department

AS135566National Telecom Public Company Limited

AS135616Name: Thaksin University

AS135635Tourism authority of Thailand

AS136035Department of Tourism

AS137058Aeronautical Radio of Thailand Ltd.

AS23900Planet Online Laos, Internet Service Provider in LAO PDR

IPv4 Prefixes (256)

122.155.56.0/24

122.154.195.0/24

61.19.187.0/24

122.154.75.0/24

122.155.92.0/24

114.131.224.0/24

122.155.104.0/22

202.129.12.0/22

61.19.42.0/24

122.154.77.0/24

61.19.210.0/24

122.154.180.0/24

122.155.218.0/24

110.78.28.0/24

61.19.38.0/24

122.155.88.0/21

61.19.232.0/24

122.154.169.0/24

122.154.66.0/24

110.78.82.0/23

110.78.39.0/24

122.154.62.0/24

114.131.128.0/19

122.154.240.0/20

61.19.197.0/24

61.7.240.0/21

122.154.230.0/24

122.154.102.0/23

122.154.40.0/23

122.154.72.0/23

61.19.235.0/24

61.7.222.0/23

122.155.133.0/24

122.155.58.0/24

122.154.240.0/24

61.19.204.0/22

122.155.108.0/24

110.78.26.0/24

61.19.192.0/22

122.154.247.0/24

122.155.131.0/24

110.78.34.0/23

61.19.120.0/23

122.154.104.0/23

202.129.40.0/23

114.131.64.0/20

122.154.97.0/24

122.154.176.0/24

61.19.146.0/24

122.154.188.0/22

122.154.226.0/24

61.19.221.0/24

122.155.76.0/24

61.7.208.0/21

122.154.38.0/23

61.7.221.0/24

122.154.168.0/24

61.19.212.0/23

110.78.44.0/24

202.129.14.0/24

61.19.116.0/22

61.19.186.0/24

122.154.59.0/24

110.78.4.0/24

122.154.174.0/24

61.7.242.0/23

202.47.224.0/20

61.19.27.0/24

114.131.208.0/20

122.155.104.0/23

61.19.192.0/24

122.155.47.0/24

122.154.224.0/20

114.131.48.0/21

122.154.46.0/23

202.129.16.0/22

61.7.239.0/24

122.154.231.0/24

202.129.26.0/24

122.154.152.0/24

61.19.108.0/24

122.154.186.0/23

122.154.198.0/24

122.154.233.0/24

61.19.103.0/24

61.19.226.0/24

110.78.76.0/23

122.155.65.0/24

61.19.147.0/24

122.154.196.0/24

61.19.80.0/24

61.19.57.0/24

122.154.165.0/24

122.154.200.0/24

114.131.32.0/21

122.154.71.0/24

114.131.66.0/23

122.154.84.0/24

110.78.46.0/24

61.7.199.0/24

110.78.32.0/23

122.155.192.0/19

61.19.32.0/23

202.47.227.0/24

61.19.195.0/24

61.19.207.0/24

114.131.16.0/21

61.19.95.0/24

110.78.10.0/24

122.154.150.0/23

114.131.78.0/23

114.131.160.0/24

202.47.250.0/24

122.154.128.0/19

122.154.11.0/24

122.154.85.0/24

122.155.142.0/24

122.154.100.0/23

61.19.56.0/22

202.129.48.0/22

61.7.237.0/24

114.131.11.0/24

110.78.86.0/24

122.155.42.0/24

122.154.105.0/24

61.19.108.0/23

122.154.238.0/23

110.78.80.0/23

202.129.20.0/22

122.155.106.0/24

202.129.56.0/22

110.78.47.0/24

122.154.112.0/23

122.155.96.0/23

122.155.139.0/24

61.7.232.0/21

122.154.125.0/24

61.7.192.0/24

122.154.246.0/24

202.129.57.0/24

202.47.248.0/23

122.155.73.0/24

110.78.112.0/23

122.155.50.0/24

61.19.43.0/24

110.78.16.0/24

61.19.228.0/23

122.154.120.0/22

61.19.214.0/24

110.78.18.0/24

61.7.212.0/23

122.155.48.0/24

122.154.56.0/24

61.19.48.0/21

110.78.5.0/24

110.78.41.0/24

202.129.0.0/19

202.47.242.0/23

110.78.64.0/23

202.129.61.0/24

122.154.225.0/24

114.131.15.0/24

61.7.244.0/24

61.7.195.0/24

61.19.200.0/24

61.19.226.0/23

110.78.48.0/20

122.155.74.0/24

61.19.47.0/24

61.19.158.0/24

61.19.158.0/23

122.154.95.0/24

122.154.53.0/24

61.19.181.0/24

122.154.160.0/19

122.155.89.0/24

122.154.168.0/21

110.78.42.0/24

202.47.235.0/24

110.78.88.0/24

122.154.182.0/23

110.78.19.0/24

202.129.12.0/24

61.19.22.0/24

122.154.255.0/24

110.78.23.0/24

122.154.130.0/24

122.154.170.0/24

122.154.147.0/24

202.129.48.0/21

61.7.245.0/24

122.154.57.0/24

114.131.72.0/23

61.19.208.0/22

110.78.0.0/20

122.154.69.0/24

122.154.68.0/24

61.19.75.0/24

61.19.84.0/23

202.47.239.0/24

110.78.16.0/20

61.19.212.0/24

61.19.254.0/24

61.19.80.0/20

122.155.140.0/24

61.19.196.0/22

202.129.44.0/22

61.19.156.0/23

122.154.0.0/16

122.154.99.0/24

61.19.148.0/24

110.78.84.0/24

61.19.177.0/24

202.129.44.0/24

122.154.104.0/24

114.131.76.0/23

122.154.108.0/22

110.78.85.0/24

61.19.122.0/24

122.154.236.0/23

122.154.19.0/24

61.19.234.0/24

122.154.118.0/23

61.19.188.0/24

122.154.16.0/24

122.155.36.0/24

122.155.64.0/21

114.131.68.0/23

122.154.142.0/23

61.19.144.0/20

110.78.113.0/24

122.155.97.0/24

110.78.119.0/24

122.154.17.0/24

122.154.199.0/24

122.155.132.0/24

202.47.243.0/24

61.19.150.0/24

122.155.35.0/24

114.131.129.0/24

122.154.18.0/24

61.19.116.0/23

122.155.33.0/24

122.154.234.0/24

122.155.34.0/24

61.19.223.0/24

114.131.128.0/24

122.154.164.0/24

122.155.136.0/24

122.155.213.0/24

122.154.183.0/24

61.7.232.0/23

61.19.220.0/24

61.7.246.0/24

122.154.51.0/24

61.19.182.0/24

IPv6 Prefixes (43)

2001:c38:9082::/48

2001:c38:9600::/40

2001:c38:9060::/48

2001:c38:9400::/40

2001:c38:9300::/40

2001:c38:902a::/48

2001:c38:9056::/48

2001:c38:9045::/48

2001:c38:913b::/48

2001:c38:913c::/48

2001:c38:903e::/48

2001:c38:904a::/48

2001:c38:9700::/40

2001:c38:9500::/40

2001:c38:9043::/48

2001:c38:903a::/48

2001:c38:90b0::/48

2001:c38:9047::/48

2001:c39:9000::/36

2001:c38:9029::/48

2001:c38:903d::/48

2001:c38:9200::/40

2001:c38:900f::/48

2001:c38:9065::/48

2001:c38:9023::/48

2001:c39:9931::/48

2001:c38:9931::/48

2001:c38:9124::/48

2001:c38:9024::/48

2001:c38:9040::/48

2001:c38:9068::/48

2001:c38:9046::/48

2001:c38:9062::/48

2001:c38:903b::/48

2001:c38:4000::/36

2001:c38:9142::/48

2001:c38:902e::/48

2001:c38:9028::/48

2001:c38:9051::/48

2001:c38:9042::/48

2001:c38:903f::/48

2001:c38:9000::/36

2001:c38:9067::/48

BGP Peers (1)

AS24482SG.GS

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.