203.205.16.0/22

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:         hm-changed@vnnic.vn
abuse-mailbox:  hm-changed@vnnic.vn
admin-c:        NTTT1-AP
tech-c:         NTTT1-AP
auth:           # Filtered
mnt-by:         MAINT-VN-VNNIC
last-modified:  2025-09-04T05:18:22Z
source:         APNIC

person:         Hoang Viet Anh
address:        CMCTELECOM-VN
country:        VN
phone:          +84-366235766
e-mail:         anh.hv@cmctelecom.vn
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:         hieu.nv@cmctelecom.vn
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

Hosted domains

There are 9 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.205.18.83	smax.ai	3
203.205.18.86	smax.app	2
203.205.18.81	bizflow.vn	2

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

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

IP Address	ASN	Details
203.205.16.10	AS45903 CMC Telecom Infrastructure Company	`0.97ms` from Hanoi, VN
203.205.18.68	AS45903 CMC Telecom Infrastructure Company	`0.98ms` from Hanoi, VN
203.205.17.226	AS45903 CMC Telecom Infrastructure Company	`0.68ms` 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
66.93.245.22	AS3257 GTT Communications Inc.	`0.51ms` from Ashburn, US
147.95.28.6	AS8762 Hellenic Mediterranean University	`7.69ms` from Athens, GR
81.183.219.198	AS5483 Magyar Telekom Plc.	`1.18ms` from Budapest, HU
74.133.13.246	AS10796 Charter Communications Inc	`14.72ms` from Chicago, US
76.31.93.6	AS7922 Comcast Cable Communications, LLC	`11.02ms` from Dallas, US
87.122.197.230	AS8881 1&1 Versatel Deutschland GmbH	`4.82ms` from Frankfurt am Main, DE
98.195.27.246	AS7922 Comcast Cable Communications, LLC	`10.31ms` from Houston, US
113.238.198.182	AS4837 CHINA UNICOM China169 Backbone	`10.79ms` from Liaoyang, CN
218.7.164.22	AS4837 CHINA UNICOM China169 Backbone	`15.50ms` from Liaoyang, CN
80.195.144.182	AS5089 Virgin Media Limited	`1.14ms` from London, GB
213.242.105.246	AS3356 Level 3 Parent, LLC	`0.18ms` from Madrid, ES
203.55.252.6	AS9443 Vocus Retail	`1.43ms` from Melbourne, AU
23.27.150.6	AS18779 EGIHosting	`0.15ms` from Santa Clara, US
114.30.20.22	AS10036 DLIVE	`1.61ms` from Seoul, KR
218.37.23.38	AS17864 SK Broadband Co Ltd	`1.94ms` from Seoul, KR
150.253.198.150	AS13445 Cisco Webex LLC	`0.46ms` from Singapore, SG
182.118.145.166	AS4837 CHINA UNICOM China169 Backbone	`3.26ms` from Zhengzhou, CN
195.219.134.38	AS6453 TATA COMMUNICATIONS (AMERICA) INC	`1.36ms` from Zuerich, CH
74.115.246.246	AS19215 PES Energize	`10.35ms` from Atlanta, US
96.67.235.38	AS7922 Comcast Cable Communications, LLC	`3.70ms` from Atlanta, US
90.65.95.246	AS3215 Orange S.A.	`10.30ms` from Aubervilliers, FR
125.22.195.134	AS9498 BHARTI Airtel Ltd.	`0.25ms` from Bengaluru, IN
14.108.136.118	AS4134 CHINANET-BACKBONE	`8.28ms` from Chongqing, CN
79.241.76.150	AS3320 Deutsche Telekom AG	`7.88ms` from Frankfurt am Main, DE
14.183.38.6	AS45899 VNPT Corp	`2.48ms` from Ho Chi Minh City, VN

Traceroute

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

traceroute -a -n -q1 -f4 203.205.18.201

traceroute to 203.205.18.201 (203.205.18.201): 64 hops max, 52 byte packets

4 [] 89.44.212.80 0.455 ms

5 *

6 [AS45903] 203.205.18.201 20.784 ms

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On September 4th 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.

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