203.205.40.0/21

AS45903 · CMC Telecom Infrastructure Company

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Summary

Country	Vietnam
Domain	cmctelecom.vn
ASN	AS45903
Registry	APNIC
ID	CMCTELECOM-VN

WHOIS Details

inetnum:        203.205.0.0 - 203.205.63.255
netname:        CMCTELECOM-VN
descr:          CMC Telecom Infrastructure Company
descr:          CMC Tower,Cluster Handicraft Production andSmall Industry, Cau Giay, Hanoi, Vietnam
country:        VN
admin-c:        HVA2-AP
tech-c:         NVH31-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
last-modified:  2023-08-31T05:01:55Z
source:         APNIC

irt:            IRT-VNNIC-AP
address:        Ha Noi, VietNam
phone:          +84-24-35564944
fax-no:         +84-24-37821462
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        NTTT1-AP
tech-c:         NTTT1-AP
auth:           # Filtered
mnt-by:         MAINT-VN-VNNIC
last-modified:  2025-11-17T23:08:34Z
source:         APNIC

person:         Hoang Viet Anh
address:        CMCTELECOM-VN
country:        VN
phone:          +84-366235766
e-mail:         [email protected]
nic-hdl:        HVA2-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2023-08-31T04:22:33Z
source:         APNIC

person:         Nguyen Van Hieu
address:        CMCTELECOM-VN
country:        VN
phone:          +84-968189689
e-mail:         [email protected]
nic-hdl:        NVH31-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-08-28T04:27:35Z
source:         APNIC

route:          203.205.0.0/18
descr:          CMCTELECOM-VN
origin:         AS45903
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-09-19T02:33:28Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.205.0.0/16

Range	ASN	Company	Num of IPs
203.205.64.0/19	AS58519	CHINANET Guangdong province network	8,192
203.205.96.0/20	AS18092	Kyushu Tele Communications Company	4,096
203.205.112.0/20	AS2914	NTT Ltd Japan Corporation	4,096

Hosted domains

There are 18 domain names hosted across 14 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.205.43.99	tuyensinhthpt.edu.vn	2
203.205.47.66	compadata.com	2
203.205.47.15	giant.vn	1
203.205.43.89	tuyensinhdaklak.edu.vn	1
203.205.47.76	cpmvietnam.com	1
203.205.40.149	ztech.live	1
203.205.40.137	sangngoc.com	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
203.205.46.206	AS45903 CMC Telecom Infrastructure Company	`16.12ms` from Hanoi, VN
203.205.41.163	AS45903 CMC Telecom Infrastructure Company	`10.27ms` from Hanoi, VN
203.205.47.1	AS45903 CMC Telecom Infrastructure Company	`1.09ms` from Ho Chi Minh City, VN
203.205.42.37	AS45903 CMC Telecom Infrastructure Company	`11.78ms` from Hanoi, VN
203.205.43.89	AS45903 CMC Telecom Infrastructure Company	`10.23ms` from Hanoi, VN
203.205.40.119	AS45903 CMC Telecom Infrastructure Company	`10.45ms` from Hanoi, VN

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
47.94.1.197	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.92ms` from Beijing, CN
20.14.149.21	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
23.253.52.101	AS19994 Rackspace Hosting	`1.24ms` from Chicago, US
50.127.102.5	AS5650 Frontier Communications of America, Inc.	`18.98ms` from Chicago, US
222.176.92.149	AS4134 CHINANET-BACKBONE	`0.88ms` from Chongqing, CN
3.4.24.53	AS8987 Amazon Data Services Ireland Ltd	`0.80ms` from Columbus, US
124.105.249.181	AS9299 Philippine Long Distance Telephone Company	`1.72ms` from Manila, PH
158.160.16.5	AS200350 Yandex.Cloud LLC	`2.73ms` from Moscow, RU
59.97.223.165	AS9829 National Internet Backbone	`8.37ms` from Mumbai, IN
112.30.139.133	AS9808 China Mobile Communications Group Co., Ltd.	`7.46ms` from Nanjing, CN
24.173.152.165	AS33363 Charter Communications, Inc	`5.71ms` from Orlando, US
123.221.113.37	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.13ms` from Osaka, JP
203.223.41.117	AS17726 Telecom Cambodia	`0.60ms` from Phnom Penh, KH
107.128.75.69	AS7018 AT&T Enterprises, LLC	`5.49ms` from Redding, US
34.196.115.149	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
123.199.42.5	AS10066 LG HelloVision Corp.	`12.01ms` from Seoul, KR
125.7.231.101	AS3786 LG DACOM Corporation	`1.63ms` from Seoul, KR
121.154.55.229	AS4766 Korea Telecom	`4.25ms` from Seoul, KR
180.157.242.5	AS4812 China Telecom (Group)	`4.25ms` from Shanghai, CN
122.193.239.5	AS4837 CHINA UNICOM China169 Backbone	`4.53ms` from Shanghai, CN
183.239.63.229	AS9808 China Mobile Communications Group Co., Ltd.	`7.26ms` from Shenzhen, CN
92.244.20.213	AS33885 Telenor Sverige AB	`0.64ms` from Stockholm, SE
220.148.12.69	AS10010 TOKAI Communications Corporation	`17.42ms` from Tokyo, JP
219.113.211.101	AS17506 ARTERIA Networks Corporation	`1.02ms` from Tokyo, JP
94.157.205.53	AS50266 Odido Netherlands B.V.	`9.47ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 203.205.41.36

traceroute to 203.205.41.36 (203.205.41.36): 64 hops max, 52 byte packets

1 [AS15169] 108.170.235.191 1.424 ms

2 *

3 [AS45903] 101.99.48.144 25.911 ms

4 [AS45903] 101.99.48.141 26.747 ms

5 [AS45903] 203.205.41.36 26.502 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On December 14th 2025

What are IP address ranges?

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