203.205.22.0/24

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 no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.205.22.13	AS45903 CMC Telecom Infrastructure Company	`0.78ms` 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
52.27.237.8	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
190.26.40.168	AS19429 ETB - Colombia	`1.00ms` from Bogota, CO
117.203.67.152	AS9829 National Internet Backbone	`5.72ms` from Delhi, IN
117.214.220.88	AS9829 National Internet Backbone	`6.42ms` from Kolkata, IN
86.166.139.248	AS2856 British Telecommunications PLC	`5.14ms` from London, GB
120.88.165.56	AS7545 TPG Telecom Limited	`1.34ms` from Perth, AU
46.202.20.56	AS396356 Latitude.sh	`0.13ms` from Santiago de Queretaro, MX
211.195.169.24	AS4766 Korea Telecom	`1.24ms` from Seoul, KR
115.8.161.40	AS4766 Korea Telecom	`5.29ms` from Seoul, KR
31.11.81.56	AS16333 Company for communications services A1 Makedonija DOOEL Skopje	`6.01ms` from Sofia, BG
188.149.249.168	AS1257 Tele2 Sverige AB	`1.13ms` from Stockholm, SE
142.112.237.8	AS577 Bell Canada	`3.71ms` from Toronto, CA
5.200.8.56	AS49544 i3D.net B.V	`1.38ms` from Amsterdam, NL
136.116.124.88	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
23.56.232.8	AS16625 Akamai Technologies, Inc.	`0.48ms` from Dallas, US
203.162.14.120	AS45899 VNPT Corp	`1.11ms` from Hanoi, VN
189.124.215.56	AS28220 Alares Cabo Servicos de Telecomunicacoes S.A.	`3.08ms` from Joao Pessoa, BR
5.63.119.72	AS9198 JSC Kazakhtelecom	`4.95ms` from Karagandy, KZ
68.194.2.200	AS6128 Cablevision Systems Corp.	`9.05ms` from New York City, US
200.158.29.72	AS27699 TELEFÔNICA BRASIL S.A	`2.39ms` from Osasco, BR
15.220.36.8	AS16509 Amazon.com, Inc.	`0.60ms` from Phoenix, US
20.13.74.152	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
208.47.211.248	AS26840 Advanced Business Group, LLC	`2.15ms` from Chicago, US
3.132.50.184	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
200.138.227.104	AS8167 V tal	`7.06ms` from Curitiba, BR

Traceroute

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

traceroute -a -n -q1 203.205.22.1

traceroute to 203.205.22.1 (203.205.22.1): 64 hops max, 52 byte packets

1 [AS15169] 108.170.235.191 49.189 ms

2 *

3 [AS45903] 101.99.0.25 91.898 ms

4 [AS45903] 203.205.22.1 89.885 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

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.

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