203.149.20.0/24

AS4741 · Samart Infonet Co., Ltd.

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Summary

Country	Thailand
Domain	samart.co.th
ASN	AS4741
Parent Range	203.149.0.0/18
Registry	APNIC
ID	SIF-TH

WHOIS Details

inetnum:        203.149.0.0 - 203.149.63.255
netname:        SIF-TH
descr:          Samart Infonet Co., Ltd.
country:        TH
org:            ORG-SICL1-AP
admin-c:        NM167-AP
tech-c:         NM167-AP
abuse-c:        AS2634-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-SAMART-TH
mnt-routes:     MAINT-SAMART-TH
mnt-irt:        IRT-SAMART-TH
last-modified:  2020-12-07T02:54:40Z
source:         APNIC

irt:            IRT-SAMART-TH
address:        99/6 Moo 4 Software Park, 30th Floor, Chaengwattana Rd.,
address:        Klong Gluar, Park-kred, Nonthaburi 11120 Thailand
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        SM973-AP
tech-c:         SM973-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-09-24
mnt-by:         MAINT-SAMART-TH
last-modified:  2025-11-17T23:08:36Z
source:         APNIC

organisation:   ORG-SICL1-AP
org-name:       Samart Infonet Co., Ltd.
org-type:       LIR
country:        TH
address:        99 / 7 Moo 4
address:        29th Flr Software Park Building,
address:        Chaengwattana Rd
address:        Klong Gluar
phone:          +66-2502-6596
fax-no:         +66-2502-6681
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:43Z
source:         APNIC

role:           ABUSE SAMARTTH
country:        ZZ
address:        99/6 Moo 4 Software Park, 30th Floor, Chaengwattana Rd.,
address:        Klong Gluar, Park-kred, Nonthaburi 11120 Thailand
phone:          +000000000
e-mail:         [email protected]
admin-c:        SM973-AP
tech-c:         SM973-AP
nic-hdl:        AS2634-AP
remarks:        Generated from irt object IRT-SAMART-TH
remarks:        [email protected] was validated on 2025-09-24
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-24T04:39:46Z
source:         APNIC

person:         Network Management
nic-hdl:        NM167-AP
e-mail:         [email protected]
address:        36/28-35 Moo 3 Ngam Wong Wan Rd., Ladyao,
address:        Chatuchak, Bangkok 10900, Thailand
phone:          +66-2953-0100
fax-no:         +66-2953-0100
country:        TH
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:29:13Z
source:         APNIC

route:          203.149.0.0/18
origin:         AS4741
descr:          Samart Infonet Co., Ltd. 99 / 7 Moo 4 29th Flr Software Park Building, Chaengwattana Rd Klong Gluar
mnt-by:         MAINT-SAMART-TH
last-modified:  2024-02-03T11:27:34Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 203.149.20.0/24

Range	ASN	Company	Num of IPs
203.149.0.0/18	AS4741	Samart Infonet Co., Ltd.	16,384

Nearby Ranges

BGP prefixes that overlap with 203.149.0.0/16

Range	ASN	Company	Num of IPs
203.149.0.0/18	AS4741	Samart Infonet Co., Ltd.	16,384
203.149.192.0/19	AS23856	SPTEL PTE. LTD.	8,192
203.149.112.0/20	AS18310	SK Broadband Co Ltd	4,096
203.149.224.0/20	AS23856	SPTEL PTE. LTD.	4,096
203.149.96.0/20	AS7687	TOYOTA SYSTEMS CORPORATION	4,096
203.149.64.0/20	AS17766	Nexon Asia Pacific Pty Ltd	4,096
203.149.80.0/21	AS17766	Nexon Asia Pacific Pty Ltd	2,048
203.149.202.0/24	AS31898	Lease to: PACIFIC INTERNATIONAL LINES (PRIVATE) LIMITED For ORACLE CLOUD AS31898	256
203.149.128.0/24	AS134078	MediaRing Network Services Pte Ltd	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
86.81.218.56	AS1136 KPN B.V.	`1.46ms` from Amsterdam, NL
107.13.42.24	AS11426 Charter Communications Inc	`9.73ms` from Ashburn, US
47.85.137.72	AS45102 Alibaba (US) Technology Co., Ltd.	`0.43ms` from Ashburn, US
212.30.230.104	AS44515 Advania Island ehf	`0.35ms` from Hafnarfjoerdur, IS
171.246.191.168	AS7552 Viettel Group	`1.35ms` from Ho Chi Minh City, VN
24.28.104.40	AS11427 Charter Communications Inc	`11.02ms` from Houston, US
202.65.224.40	AS45700 PT. NAP Info Lintas Nusa	`13.45ms` from Jakarta, ID
79.50.226.136	AS3269 Telecom Italia S.p.A.	`8.07ms` from Milan, IT
84.135.122.120	AS3320 Deutsche Telekom AG	`6.70ms` from Nuernberg, DE
20.189.172.200	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
116.124.44.72	AS9318 SK Broadband Co Ltd	`7.06ms` from Seoul, KR
124.223.99.200	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.71ms` from Shanghai, CN
111.80.121.24	AS17421 Mobile Business Group	`7.06ms` from Taipei, TW
5.193.79.104	AS5384 Emirates Internet	`3.92ms` from Al Fujairah City, AE
70.177.194.200	AS22773 Cox Communications Inc.	`9.22ms` from Ashburn, US
174.81.159.152	AS20115 Charter Communications LLC	`10.56ms` from Atlanta, US
54.186.60.136	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
181.51.103.56	AS10620 Telmex Colombia S.A.	`12.27ms` from Bogota, CO
20.74.159.168	AS8075 Microsoft Corporation	`1.27ms` from Dubai, AE
104.247.105.120	AS5065 Bunny Communications	`0.71ms` from Frankfurt am Main, DE
203.132.36.40	AS58834 Guangdong Cable Corporation Limited	`1.34ms` from Guangzhou, CN
123.27.186.200	AS45899 VNPT Corp	`1.95ms` from Hanoi, VN
84.122.12.248	AS6739 VODAFONE ONO, S.A.	`12.98ms` from Madrid, ES
187.214.2.248	AS8151 UNINET	`15.12ms` from Monterrey, MX
185.105.111.200	AS210079 EuroByte LLC	`0.66ms` 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 -m8 203.149.20.226

traceroute to 203.149.20.226 (203.149.20.226): 8 hops max, 52 byte packets

1 [AS15169] 72.14.232.209 236.786 ms

2 *

3 *

4 [AS45629] 182.50.85.75 217.955 ms

5 [AS4741] 203.149.21.113 215.152 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Oudeschip, NL

On January 30th 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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