Autonomous System details

AS4651

National Telecom Public Company Limited  ·  ntplc.co.th

Thailand

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AS4651 – National Telecom Public Company Limited

Field Value
Country Thailand
Website ntplc.co.th
Hosted domains 1
IPv4 addresses 9,472
IPv6 addresses 1,208,925,819,614,629,200,000,000
ASN type ISP
Registry apnic
Allocated 30 years ago on Dec 27, 1995
Updated 5 months ago on Nov 20, 2025

IP Ranges

Netblock Company Num of IPs
122.155.244.0/22 CAT TELECOM Data Comm. Dept, Intrenet Office 1,024
61.19.0.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.1.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.2.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.4.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.7.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.9.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
61.19.14.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
66.114.56.0/24 CDNetworks Inc. 256
93.188.128.0/24 CDNetworks Inc. 256
93.188.129.0/24 CDNetworks Inc. 256
122.155.224.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.225.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.226.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.227.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.229.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.230.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.232.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.235.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.236.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.237.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.238.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.240.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.243.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
122.155.244.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256
148.253.59.0/24 CDNetworks Inc 256
163.171.105.0/24 CDNetworks Inc 256
163.171.106.0/24 CDNetworks Inc 256
163.171.108.0/24 CDNetworks Inc 256
163.171.120.0/24 CDNetworks Inc 256
163.171.121.0/24 CDNetworks Inc 256
174.35.3.0/24 CDNetworks Inc. 256
174.35.53.0/24 CDNetworks Inc. 256
185.27.231.0/24 CDNetworks Inc 256
202.47.253.0/24 CAT TELECOM Data Comm. Dept, Intrenet Office 256

Netblock Company
2001:c38:5000::/48 National Telecom Public Company Limited
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WHOIS Details

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                                                ASHandle:       AS4651
                                                OrgID:          AS4651
                                                ASName:         AS4651
                                                ASNumber:       AS4651
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
122.155.237.241 ██████████ 1

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Hosted Domains API & Database

Peers

There are 320 peers for this ASN.

Peers Name
AS1031 PEER 1031 LLC
AS1103 SURF B.V.
AS1140 Stichting Internet Domeinregistratie Nederland
AS12389 PJSC Rostelecom
AS12552 GlobalConnect AB
AS12637 SEEWEB s.r.l.
AS1267 WIND TRE S.P.A.
AS1273 Vodafone Group PLC
AS12779 IT.Gate S.p.A.
AS12859 BIT BV
AS12969 Vodafone Iceland
AS1299 Arelion Sweden AB
AS13030 Init7 (Switzerland) Ltd.
AS13058 serve-u - Buchholz und Suenderhauf GbR
AS131090 National Telecom Public Company Limited
AS131293 TOT Public Company Limited
AS13194 Bite IP Network
AS132300 NIPA TECHNOLOGY CO., LTD
AS132337 Axclusive
AS13237 euNetworks GmbH
AS132876 Symphony Communication (Thailand) PCL.
AS133210 EN Technologies Pte Ltd
AS133524 Global Technology Co., Ltd.
AS134823 Sky Digital Co., Ltd.
AS135063 POP NIX COMPANY LIMITED
AS135589 Internet Maekhong Network Company Limited
AS136523 COLODEE DIGITAL NETWORK CO.,LTD.
AS136557 Host Universal Pty Ltd
AS137409 GSL Networks Pty LTD
AS138616 Sanuk Systems (Thailand) Co., Ltd
AS138997 Eons Data Communications Limited
AS139014 Next Route Company Limited
AS139341 ACE
AS139591 National Telecom Public Company Limited
AS139620 MYANMAR TELECOMMUNICATION NETWORK PUBLIC COMPANY LIMITED
AS140627 OneQode
AS140867 International gateway co., Ltd
AS140985 Global Innovative Solution Co., LTD
AS141419 CHINA MOBILE INTERNATIONAL (THAILAND) LTD.
AS142271 EWS DS Networks Inc
AS14537 Continent 8 LLC
AS14630 Invesco Group Services, Inc.
AS14789 Cloudflare, Inc.
AS14840 BR.Digital Telecom
AS148968 Falcore Investments Pty Ltd
AS148997 KTB COMPUTER SERVICES COMPANY LIMITED
AS14907 Wikimedia Foundation Inc.
AS151326 DCConnect Communication Pte. Ltd.
AS152127 OneAsia Data Center (BKK1) Company Limited
AS15547 netplus.ch SA
AS15605 Connesi s.p.a.
AS15703 TrueServer BV AS number
AS15802 Emirates Integrated Telecommunications Company PJSC
AS15958 CETINdoo-NET
AS16347 ADISTA SAS
AS16552 Tiggee LLC
AS174 Cogent Communications, LLC
AS17557 Pakistan Telecommunication Company Limited
AS17639 Converge ICT Solutions Inc.
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS17660 DrukNet ISP
AS17676 SoftBank Corp.
AS18106 Viewqwest Pte Ltd
AS1828 Unitas Global
AS1836 green.ch AG
AS18403 FPT Telecom Company
AS18409 Bank of Thailand, Bangkok, Thailand
AS18678 INTERNEXA S.A. E.S.P
AS19151 BroadbandONE, LLC
AS198150 SIACOM JSC
AS198249 Ops One AG
AS198385 AlpineDC SA
AS199524 G-Core Labs S.A.
AS199938 Netzwerge GmbH
AS200242 Ember Ana Reimer
AS204092 Association GRIFON
AS20485 Joint Stock Company TransTeleCom
AS205103 Telegraph42 Management GmbH
AS205112 PHILUNET GmbH
AS205206 Netsite A/S
AS206356 Freifunk Essen e.V.
AS20764 CJSC RASCOM
AS20766 Association Gitoyen
AS207841 Inferno Communications Ltd
AS209090 Association Stolon
AS20932 Services Industriels de Geneve
AS20940 Akamai International B.V.
AS209823 Enki Multimedia EURL
AS210937 Xiufeng Guo
AS2119 Telenor Norge AS
AS212024 Marc Schmitt
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS212635 AS212635 Network
AS213151 Christian Elsen
AS213241 TECHIT.BE SRL
AS21412 UAB Cgates
AS215638 Cilix Limited
AS215859 Hetzner Online GmbH
AS21859 Zenlayer Inc
AS22356 Durand do Brasil Ltda
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Upstreams

There are 12 upstreams for this ASN.

upstreams Name
AS1273 Vodafone Group PLC
AS1299 Arelion Sweden AB
AS174 Cogent Communications, LLC
AS2914 NTT America, Inc.
AS3356 Level 3 Parent, LLC
AS3491 PCCW Global (HK) Ltd.
AS4637 Telstra Global
AS4766 Korea Telecom
AS5511 Orange S.A.
AS6453 TATA COMMUNICATIONS (AMERICA) INC
AS6461 Zayo Bandwidth
AS6939 Hurricane Electric LLC
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ASN API & Database

Downstreams

There are 36 downstreams for this ASN.

Downstreams Name
AS131090 National Telecom Public Company Limited
AS131293 TOT Public Company Limited
AS132300 NIPA TECHNOLOGY CO., LTD
AS133524 Global Technology Co., Ltd.
AS135063 POP NIX COMPANY LIMITED
AS136523 COLODEE DIGITAL NETWORK CO.,LTD.
AS138616 Sanuk Systems (Thailand) Co., Ltd
AS139014 Next Route Company Limited
AS139341 ACE
AS139591 National Telecom Public Company Limited
AS139620 MYANMAR TELECOMMUNICATION NETWORK PUBLIC COMPANY LIMITED
AS140985 Global Innovative Solution Co., LTD
AS141419 CHINA MOBILE INTERNATIONAL (THAILAND) LTD.
AS14789 Cloudflare, Inc.
AS148997 KTB COMPUTER SERVICES COMPANY LIMITED
AS152127 OneAsia Data Center (BKK1) Company Limited
AS18409 Bank of Thailand, Bangkok, Thailand
AS20940 Akamai International B.V.
AS23884 Proen Corp Public Company Limited.
AS23969 TOT Public Company Limited
AS24187 KIRZ Service Provider
AS24429 Zhejiang Taobao Network Co.,Ltd
AS38328 Ministry of Finance
AS38450 Ministry of Infomation Communication Technology
AS38566 NTTCTNET
AS38794 UIH
AS45413 ServeNET Solution Limited Partnership
AS4618 Internet Thailand Company Limited
AS4621 UNINET-TH
AS4765 Pacific Internet Pte Ltd
AS54994 Meteverse Limited.
AS55514 Electricity Generating Authority of Thailand (EGAT)
AS56067 453 Ladplacout Jorakhaebua
AS9335 National Telecom Public Company Limited
AS9835 Government Information Technology Services
AS9931 National Telecom Public Company Limited
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ASN API & Database

Pingable IPs

37 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
2001:c38:5000:305::4651:2 AS4651 National Telecom Public Company Limited 0.46ms from Singapore, SG
61.19.14.118 AS4651 National Telecom Public Company Limited 22.65ms from Singapore, SG
122.155.246.18 AS4651 National Telecom Public Company Limited 22.82ms from Singapore, SG
122.155.226.117 AS4651 National Telecom Public Company Limited 0.61ms from Bangkok, TH
174.35.3.228 AS4651 National Telecom Public Company Limited 24.62ms from Bangkok, TH
174.35.53.44 AS4651 National Telecom Public Company Limited 24.69ms from Bangkok, TH
122.155.245.189 AS4651 National Telecom Public Company Limited 22.81ms from Singapore, SG
61.19.9.174 AS4651 National Telecom Public Company Limited 0.40ms from Singapore, SG
122.155.238.182 AS4651 National Telecom Public Company Limited 1.83ms from Bangkok, TH
185.27.231.162 AS4651 National Telecom Public Company Limited 0.78ms from Bangkok, TH
148.253.59.46 AS4651 National Telecom Public Company Limited 22.35ms from Singapore, SG
61.19.1.13 AS4651 National Telecom Public Company Limited 25.52ms from Singapore, SG
163.171.108.141 AS4651 National Telecom Public Company Limited 22.34ms from Singapore, SG
163.171.106.78 AS4651 National Telecom Public Company Limited 22.35ms from Singapore, SG
122.155.235.2 AS4651 National Telecom Public Company Limited 2.01ms from Bangkok, TH
202.47.253.4 AS4651 National Telecom Public Company Limited 0.41ms from Singapore, SG
122.155.225.2 AS4651 National Telecom Public Company Limited 1.99ms from Bangkok, TH
122.155.240.2 AS4651 National Telecom Public Company Limited 2.16ms from Bangkok, TH
66.114.56.91 AS4651 National Telecom Public Company Limited 24.63ms from Bangkok, TH
122.155.232.26 AS4651 National Telecom Public Company Limited 1.44ms from Bangkok, TH
122.155.247.17 AS4651 National Telecom Public Company Limited 22.83ms from Singapore, SG
61.19.2.68 AS4651 National Telecom Public Company Limited 22.30ms from Singapore, SG
93.188.128.51 AS4651 National Telecom Public Company Limited 22.35ms from Singapore, SG
61.19.0.9 AS4651 National Telecom Public Company Limited 22.61ms from Singapore, SG
122.155.229.2 AS4651 National Telecom Public Company Limited 2.20ms from Bangkok, TH

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
51.102.124.219 AS16509 Amazon.com, Inc. 0.16ms from Frankfurt am Main, DE
59.188.70.219 AS9269 Hong Kong Broadband Network Ltd. 0.78ms from Hong Kong, HK
110.235.77.219 AS9269 Hong Kong Broadband Network Ltd. 0.81ms from Hong Kong, HK
80.6.250.155 AS5089 Virgin Media Limited 6.02ms from London, GB
68.231.215.107 AS22773 Cox Communications Inc. 5.05ms from Los Angeles, US
27.202.240.107 AS4837 CHINA UNICOM China169 Backbone 5.37ms from Qingdao, CN
174.23.241.43 AS209 CenturyLink Communications, LLC 2.17ms from Salt Lake City, US
75.194.193.59 AS6167 Verizon Business 15.38ms from Santa Clara, US
201.188.91.171 AS7418 TELEFÓNICA CHILE S.A. 3.97ms from Santiago, CL
111.119.214.107 AS136907 HUAWEI CLOUDS 0.90ms from Singapore, SG
51.53.90.187 AS8075 Microsoft Corporation 0.52ms from Taipei, TW
104.17.195.155 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
9.163.223.251 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
15.235.60.91 AS16276 OVH SAS 0.08ms from Beauharnois, CA
130.131.83.107 AS8075 Microsoft Corporation 0.27ms from Chicago, US
52.14.124.171 AS16509 Amazon.com, Inc. 0.17ms from Columbus, US
14.180.184.43 AS45899 VNPT Corp 8.40ms from Da Nang, VN
1.58.141.251 AS4837 CHINA UNICOM China169 Backbone 4.46ms from Harbin, CN
221.163.29.123 AS4766 Korea Telecom 1.82ms from Incheon, KR
188.8.53.187 AS3269 Telecom Italia S.p.A. 2.22ms from Milan, IT
35.227.21.43 AS396982 Google LLC 0.13ms from Moncks Corner, US
190.64.75.107 AS6057 Administracion Nacional de Telecomunicaciones 1.45ms from Montevideo, UY
51.250.49.91 AS200350 Yandex.Cloud LLC 2.57ms from Moscow, RU
34.40.226.11 AS396982 Google LLC 0.09ms from Sydney, AU
96.9.125.91 AS399629 BL Networks 0.19ms from Bucharest, RO

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f4 163.171.121.106
traceroute to 163.171.121.106 (163.171.121.106): 64 hops max, 52 byte packets
4 [AS4651] 61.19.9.169 24.201 ms
5 *
Measurement taken from IPinfo ProbeNet in Singapore, SG
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS4651 at robtex.

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