203.205.19.0/24

AS45903 · CMC Telecom Infrastructure Company

Need more data or want to access it via API or data downloads? Sign up to get free access

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 no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

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
212.205.195.24	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`2.23ms` from Athens, GR
111.201.42.152	AS4808 China Unicom Beijing Province Network	`3.48ms` from Beijing, CN
44.232.167.8	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
71.181.79.40	AS13977 Fidium	`3.25ms` from Boston, US
203.209.206.8	AS63956 5G NETWORK OPERATIONS PTY LTD	`0.34ms` from Brisbane, AU
119.116.170.216	AS4837 CHINA UNICOM China169 Backbone	`14.67ms` from Dalian, CN
191.207.1.152	AS26599 TELEFÔNICA BRASIL S.A	`18.53ms` from Fortaleza, BR
116.97.197.136	AS7552 Viettel Group	`1.85ms` from Hanoi, VN
168.76.162.120	AS137951 ASLINE LIMITED	`0.69ms` from Hong Kong, HK
86.137.217.56	AS2856 British Telecommunications PLC	`1.56ms` from London, GB
108.190.169.184	AS33363 Charter Communications, Inc	`10.49ms` from Miami, US
93.185.192.216	AS35271 JSC "AVIEL"	`1.50ms` from Moscow, RU
9.142.209.56	AS11404 Wave Broadband	`1.15ms` from San Jose, US
115.141.211.184	AS17858 LG POWERCOMM	`1.45ms` from Seoul, KR
118.41.24.8	AS4766 Korea Telecom	`4.67ms` from Seoul, KR
219.54.255.88	AS17676 SoftBank Corp.	`3.40ms` from Tokyo, JP
94.181.94.232	AS34590 JSC "ER-Telecom Holding"	`9.70ms` from Yekaterinburg, RU
123.7.71.120	AS4837 CHINA UNICOM China169 Backbone	`6.75ms` from Zhengzhou, CN
85.0.161.40	AS3303 Swisscom (Switzerland) Ltd	`0.69ms` from Zuerich, CH
135.129.219.248	AS19331 Twin Lakes Telephone Cooperative Corporation	`9.18ms` from Atlanta, US
162.197.58.184	AS7018 AT&T Enterprises, LLC	`1.69ms` from Atlanta, US
35.81.209.136	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
20.110.83.88	AS8075 Microsoft Corporation	`0.25ms` from Boydton, US
139.208.156.168	AS4837 CHINA UNICOM China169 Backbone	`11.01ms` from Changchun, CN
104.181.203.168	AS7018 AT&T Enterprises, LLC	`10.33ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -m6 203.205.19.164

traceroute to 203.205.19.164 (203.205.19.164): 6 hops max, 52 byte packets

1 [AS15169] 108.170.235.191 121.87 ms

2 *

3 [AS45903] 101.99.0.25 148.493 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Melbourne, AU

On December 14th 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.

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

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales