122.154.21.0/24

AS9931 · National Telecom Public Company Limited

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Summary

Country	Thailand
Domain	cattelecom.com
ASN	AS9931
Registry	APNIC
ID	CAT-BANGKOK

WHOIS Details

inetnum:        122.154.0.0 - 122.154.31.255
netname:        CAT-BANGKOK
descr:          CAT Telecom public company Ltd
descr:          International Telecommunications Service Provider
country:        TH
admin-c:        IC174-AP
tech-c:         TC476-AP
abuse-c:        AN3307-AP
status:         ALLOCATED NON-PORTABLE
remarks:        spaming abus sent to hostmaste@cat.net.th
notify:         admin-thix@cat.net.th
mnt-by:         MAINT-NTPCL-TH
mnt-irt:        IRT-NTPCL-TH
last-modified:  2025-11-19T23:59:30Z
source:         APNIC

irt:            IRT-NTPCL-TH
address:        99 Chaengwattana Road, Thung Song Hong Subdistrict, Luk Si, Luksi Bangkok 10210
e-mail:         pitoon.p@ntplc.co.th
abuse-mailbox:  pitoon.p@ntplc.co.th
admin-c:        NTPC2-AP
tech-c:         NTPC2-AP
auth:           # Filtered
mnt-by:         MAINT-NTPCL-TH
last-modified:  2026-02-02T07:21:59Z
source:         APNIC

role:           ABUSE NTPCLTH
country:        ZZ
address:        99 Chaengwattana Road, Thung Song Hong Subdistrict, Luk Si, Luksi Bangkok 10210
phone:          +000000000
e-mail:         pitoon.p@ntplc.co.th
admin-c:        NTPC2-AP
tech-c:         NTPC2-AP
nic-hdl:        AN3307-AP
remarks:        Generated from irt object IRT-NTPCL-TH
abuse-mailbox:  pitoon.p@ntplc.co.th
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-19T01:51:42Z
source:         APNIC

person:         IP-network CAT Telecom
nic-hdl:        IC174-AP
e-mail:         noc@cat.net.th
address:        Data Comm. Dept. National Telecom Public Company Limited
address:        NT Tower
address:        72 Charoenkrung Road Bangrak Bangkok THAILAND 10501
phone:          +66-2-6142374
fax-no:         +66-2-6142270
country:        TH
mnt-by:         MAINT-TH-THIX-CAT
last-modified:  2022-09-05T09:44:01Z
source:         APNIC

person:         THIX network staff CAT Telecom
nic-hdl:        TC476-AP
e-mail:         admin-thix@cat.net.th
address:        Data Comm. Dept. National Telecom Public Company Limited
address:        NT Tower
address:        72 Charoenkrung Road Bangrak Bangkok THAILAND 10501
phone:          +66-2-6142374
fax-no:         +66-2-6142270
country:        TH
mnt-by:         MAINT-TH-THIX-CAT
last-modified:  2022-09-05T09:49:38Z
source:         APNIC

route:          122.154.0.0/16
origin:         AS9931
descr:          National Telecom Public Company Limited 99 Chaengwattana Road Thung Song Hong Subdistrict Luk Si
mnt-by:         MAINT-NTPCL-TH
last-modified:  2025-11-24T04:04:50Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 122.154.0.0/16

Range	ASN	Company	Num of IPs
122.154.64.0/19	AS140618		8,192
122.154.96.0/19	AS152463		8,192
122.154.32.0/19	AS24328	490/1 Petchakaserm Road Hadyai Songkhla 90110	8,192
122.154.128.0/19	AS38265	:: Corporate Internet NT Services ::	8,192
122.154.128.0/19	AS9335	:: Corporate Internet NT Services ::	8,192
122.154.32.0/19	AS9464	490/1 Petchakaserm Road Hadyai Songkhla 90110	8,192
122.154.64.0/19	AS9931		8,192
122.154.128.0/19	AS9931	:: Corporate Internet NT Services ::	8,192
122.154.160.0/19	AS9931		8,192
122.154.32.0/19	AS9931	490/1 Petchakaserm Road Hadyai Songkhla 90110	8,192
122.154.96.0/19	AS9931		8,192
122.154.0.0/22	AS9931	HUACHIEW CHALERMPRAKIET UNIVERSITY	1,024
122.154.242.0/23	AS9931	Global Technology Co., Ltd.	512
122.154.245.0/24	AS9931	Maejo University	256
122.154.12.0/24	AS9931	National Health Security Office 200 Mu 4 Jasmine International Tower 28th Fl., Chaeng Wattana Rd. Pakkret Nonthaburi 11120	256
122.154.225.0/24	AS9931	Chiang rai Rajabhat University 80 M.9 Tambo Banduu , Amphur Muang , Chiangrai 57100 52000	256
122.154.67.0/24	AS9931	ASEANSUMMIT2009 HuaHin Prachuabkirikan	256
122.154.18.0/24	AS9931	Royal Irrigator Department 811 Samsen Road Dusit Bangkok Thailand 10300	256
122.154.69.0/24	AS9931	ASEANSUMMIT2009 HuaHin Prachuabkirikan	256
122.154.62.0/24	AS9931	Southen Border Provinces Administrative Centre 60 Sukayang Rd Yala 95000	256
122.154.51.0/24	AS9931	NT Corporate Services Group Allocated	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
122.154.21.1	AS9931 National Telecom Public Company Limited	`2.18ms` 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
194.36.191.200	AS60117 Host Sailor Ltd	`0.64ms` from Amsterdam, NL
124.169.109.24	AS7545 TPG Telecom Limited	`1.77ms` from Brisbane, AU
35.210.207.184	AS15169 Google LLC	`0.17ms` from Brussels, BE
75.181.215.40	AS11426 Charter Communications Inc	`7.81ms` from Charlotte, US
20.93.74.184	AS8075 Microsoft Corporation	`0.15ms` from Dublin, IE
68.55.51.72	AS7922 Comcast Cable Communications, LLC	`8.40ms` from Flint, US
61.140.12.8	AS4134 CHINANET BACKBONE	`3.08ms` from Guangzhou, CN
43.138.211.24	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.22ms` from Guangzhou, CN
171.239.43.248	AS7552 Viettel Group	`1.94ms` from Ho Chi Minh City, VN
218.235.172.216	AS9318 SK Broadband Co Ltd	`1.78ms` from Incheon, KR
206.246.156.8	AS7332 LightBound, LLC	`0.85ms` from Indianapolis, US
77.225.66.168	AS12430 VODAFONE ESPANA S.A.U.	`8.33ms` from Madrid, ES
188.101.127.40	AS3209 Vodafone GmbH	`7.09ms` from Munich, DE
122.196.50.88	AS9617 JCOM Co., Ltd.	`8.58ms` from Osaka, JP
49.31.12.24	AS4766 Korea Telecom	`7.89ms` from Seoul, KR
36.227.7.56	AS3462 Data Communication Business Group	`1.23ms` from Taipei, TW
60.70.108.168	AS17676 SoftBank Corp.	`3.34ms` from Tokyo, JP
81.207.225.248	AS1136 KPN B.V.	`2.47ms` from Amsterdam, NL
178.220.218.120	AS8400 TELEKOM SRBIJA a.d.	`1.84ms` from Belgrade, RS
205.164.238.184	AS262503 WIKI TELECOMUNICACOES EIRELI	`12.46ms` from Fortaleza, BR
151.242.230.88	AS139057 Edgenext Legend Dynasty Pte. Ltd.	`0.34ms` from Frankfurt am Main, DE
58.231.238.24	AS9318 SK Broadband Co Ltd	`6.76ms` from Incheon, KR
3.8.48.72	AS16509 Amazon.com, Inc.	`0.11ms` from London, GB
136.38.103.184	AS16591 Google Fiber Inc.	`0.84ms` from Salt Lake City, US
161.22.18.120	AS19889 Cooperativa Telefonica Del Viso	`1.47ms` from Buenos Aires, AR

Traceroute

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

traceroute -a -n -q1 122.154.21.1

traceroute to 122.154.21.1 (122.154.21.1): 64 hops max, 52 byte packets

1 [AS23884] 103.76.182.1 0.472 ms

2 *

3 [AS64050] 61.19.60.100 1.495 ms

4 [AS9931] 202.47.235.10 0.551 ms

5 [AS9931] 202.47.235.19 1.819 ms

6 [AS9931] 122.154.21.1 2.166 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On April 24th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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