203.205.48.0/24

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

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

IP Address	ASN	Details
203.205.48.22	AS45903 CMC Telecom Infrastructure Company	`10.39ms` 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
85.73.134.248	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`9.52ms` from Athens, GR
98.35.43.104	AS7922 Comcast Cable Communications, LLC	`3.17ms` from Fremont, US
113.225.238.104	AS4837 CHINA UNICOM China169 Backbone	`8.46ms` from Harbin, CN
5.58.214.88	AS16223 MAXNET TELECOM, LTD	`5.54ms` from Kyiv, UA
58.69.201.72	AS9299 Philippine Long Distance Telephone Company	`1.13ms` from Manila, PH
124.135.194.232	AS4837 CHINA UNICOM China169 Backbone	`7.28ms` from Qingdao, CN
3.215.195.232	AS14618 Amazon.com, Inc.	`0.15ms` from Reston, US
118.176.24.72	AS10036 DLIVE	`1.21ms` from Seoul, KR
117.110.190.168	AS9316 DACOM-PUBNETPLUS	`2.01ms` from Seoul, KR
13.158.13.216	AS16509 Amazon.com, Inc.	`1.12ms` from Tokyo, JP
104.167.105.184	AS394991 SWC TELESOLUTIONS, INC.	`8.17ms` from Albuquerque, US
114.254.51.216	AS4808 China Unicom Beijing Province Network	`3.46ms` from Beijing, CN
193.58.149.120	AS2611 BELNET	`1.06ms` from Brussels, BE
20.186.226.168	AS8075 Microsoft Corporation	`0.16ms` from Des Moines, US
72.34.55.184	AS33494 IHNetworks, LLC	`0.18ms` from Draper, US
171.64.210.40	AS32 Stanford University	`1.73ms` from Fremont, US
101.67.87.40	AS4837 CHINA UNICOM China169 Backbone	`8.15ms` from Hangzhou, CN
5.69.249.232	AS5607 Sky UK Limited	`0.97ms` from London, GB
46.136.223.120	AS12430 VODAFONE ESPANA S.A.U.	`2.94ms` from Madrid, ES
108.60.236.136	AS8014 Bahamas Telecommunications Corporation	`5.08ms` from Miami, US
4.187.109.40	AS8075 Microsoft Corporation	`1.59ms` from Mumbai, IN
182.216.245.232	AS17858 LG POWERCOMM	`2.29ms` from Seoul, KR
79.238.212.136	AS3320 Deutsche Telekom AG	`7.58ms` from Zuerich, CH
75.207.58.40	AS6167 Verizon Business	`14.69ms` from Atlanta, US
186.128.43.248	AS22927 Telefonica de Argentina	`2.22ms` from Buenos Aires, AR

Traceroute

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

traceroute -a -n -q1 203.205.48.21

traceroute to 203.205.48.21 (203.205.48.21): 64 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 136.239 ms

2 *

3 [AS45903] 203.205.48.21 169.261 ms

Measurement taken from

IPinfo ProbeNet in The Dalles, 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.

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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