203.205.31.0/24

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 14 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.205.31.221	ssart.com.vn	9
203.205.31.136	en-tekwell.vn	2
203.205.31.152	menagourmet.com	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.205.31.2	AS45903 CMC Telecom Infrastructure Company	`1.28ms` from Ho Chi Minh City, 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
89.12.74.88	AS6805 Telefonica Germany GmbH & Co.OHG	`4.26ms` from Berlin, DE
3.137.146.232	AS16509 Amazon.com, Inc.	`0.96ms` from Columbus, US
31.96.127.24	AS2856 British Telecommunications PLC	`2.17ms` from Erith, GB
91.137.49.56	AS199284 Thueringer Netkom GmbH	`7.17ms` from Frankfurt am Main, DE
101.71.139.232	AS4837 CHINA UNICOM China169 Backbone	`4.87ms` from Hangzhou, CN
146.148.214.40	AS26658 HT	`0.26ms` from Los Angeles, US
27.127.155.104	AS7524 ITEC HANKYU HANSHIN CO.,LTD.	`0.85ms` from Osaka, JP
4.227.125.152	AS8075 Microsoft Corporation	`0.16ms` from Phoenix, US
100.28.199.136	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
5.167.66.200	AS57026 JSC "ER-Telecom Holding"	`7.42ms` from Samara, RU
134.231.202.216	AS394089 Google LLC	`0.69ms` from Tokyo, JP
94.31.225.168	AS35154 PJSC Rostelecom	`0.84ms` from Yekaterinburg, RU
182.127.161.88	AS4837 CHINA UNICOM China169 Backbone	`3.00ms` from Zhengzhou, CN
158.120.90.200	AS394473 Brantley Telephone Company, Inc.	`9.20ms` from Atlanta, US
8.141.75.184	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.94ms` from Beijing, CN
20.24.119.40	AS8075 Microsoft Corporation	`0.29ms` from Hong Kong, HK
66.68.253.216	AS11427 Charter Communications Inc	`17.13ms` from Houston, US
165.169.122.232	AS37002 Reunicable SAS	`3.75ms` from Saint-Denis, RE
201.124.120.88	AS8151 UNINET	`3.73ms` from Santiago de Queretaro, MX
220.72.240.136	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
83.241.174.40	AS12552 GlobalConnect AB	`0.61ms` from Stockholm, SE
141.138.63.136	AS13046 Hrvatski Telekom d.d.	`10.68ms` from Zagreb, HR
68.72.228.40	AS7018 AT&T Enterprises, LLC	`8.61ms` from Chicago, US
191.220.84.8	AS8167 V tal	`1.81ms` from Curitiba, BR
193.125.89.216	AS12430 VODAFONE ESPANA S.A.U.	`9.42ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 203.205.31.1

traceroute to 203.205.31.1 (203.205.31.1): 64 hops max, 52 byte packets

1 [AS15169] 72.14.236.39 172.608 ms

2 *

3 [AS45903] 203.205.56.109 221.107 ms

4 [AS45903] 203.205.31.1 221.064 ms

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On December 20th 2025

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.

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