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:  2026-01-13T05:19:48Z
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
122.154.128.0/19	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
122.154.64.0/19	AS9931		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
122.154.67.0/24	AS9931	ASEANSUMMIT2009 HuaHin Prachuabkirikan	256
122.154.51.0/24	AS9931	NT Corporate Services Group Allocated	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
122.154.62.0/24	AS9931	Southen Border Provinces Administrative Centre 60 Sukayang Rd Yala 95000	256
122.154.69.0/24	AS9931	ASEANSUMMIT2009 HuaHin Prachuabkirikan	256
122.154.225.0/24	AS9931	Chiang rai Rajabhat University 80 M.9 Tambo Banduu , Amphur Muang , Chiangrai 57100 52000	256
122.154.18.0/24	AS9931	Royal Irrigator Department 811 Samsen Road Dusit Bangkok Thailand 10300	256
122.154.245.0/24	AS9931	Maejo University	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

36 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	`1.91ms` 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
97.148.191.120	AS6167 Verizon Business	`15.31ms` from Atlanta, US
172.200.38.216	AS8075 Microsoft Corporation	`0.17ms` from Boydton, US
193.169.156.88	AS49646 Agentia Nationala a Medicamentului	`0.90ms` from Bucharest, RO
75.219.213.184	AS6167 Verizon Business	`13.61ms` from Chicago, US
74.87.244.216	AS10796 Charter Communications Inc	`1.28ms` from Cleveland, US
14.231.189.72	AS45899 VNPT Corp	`1.35ms` from Hanoi, VN
38.150.14.104	AS202662 Hytron Network Services	`0.18ms` from Hong Kong, HK
90.73.96.152	AS3215 Orange S.A.	`1.41ms` from Marseille, FR
83.137.238.8	AS41497 INTRED S.P.A.	`8.43ms` from Milan, IT
15.223.138.200	AS16509 Amazon.com, Inc.	`0.12ms` from Montreal, CA
154.8.49.200	AS10003 Ogaki Cable Television Co.,Inc.	`3.56ms` from Osaka, JP
185.144.24.8	AS200780 Eurofiber France SAS	`0.40ms` from Paris, FR
73.169.218.136	AS7922 Comcast Cable Communications, LLC	`3.38ms` from Seattle, US
32.209.118.152	AS46690 Southern New England Telephone Company and SNET America, Inc.	`9.67ms` from Secaucus, US
186.246.133.216	AS26599 TELEFÔNICA BRASIL S.A	`1.31ms` from São Paulo, BR
114.39.38.40	AS3462 Data Communication Business Group	`3.79ms` from Taichung, TW
153.176.116.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.46ms` from Tokyo, JP
80.88.15.8	AS33779 Wataniya Telecom Algerie	`7.60ms` from Valencia, ES
195.85.119.152	AS397976 Central Access, Inc.	`7.36ms` from Atlanta, US
20.141.208.152	AS8070 Microsoft Corporation	`0.60ms` from Boydton, US
168.199.56.8	AS39855 Mod Mission Critical LLC	`0.89ms` from Dublin, IE
20.143.48.40	AS8075 Microsoft Corporation	`0.18ms` from Kuala Lumpur, MY
89.153.113.136	AS2860 NOS COMUNICACOES, S.A.	`9.06ms` from Lisbon, PT
97.246.181.152	AS6167 Verizon Business	`16.93ms` from Los Angeles, US
194.85.30.152	AS57580 Federal State Budgetary Institution "Research Center for Information of the Ministry of Foreign Affairs of the Russian Federation"	`1.86ms` from Moscow, RU

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 7.062 ms

2 *

3 [AS64050] 61.19.60.99 0.72 ms

4 [AS9931] 202.47.235.173 0.794 ms

5 [AS9931] 202.47.235.247 0.409 ms

6 [AS9931] 202.47.235.17 1.341 ms

7 [AS9931] 122.154.21.1 2.34 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On January 19th 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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