203.205.48.0/23

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

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

IP Address	ASN	Details
203.205.49.150	AS45903 CMC Telecom Infrastructure Company	`11.53ms` from Ho Chi Minh City, VN
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
49.70.81.199	AS4134 CHINANET-BACKBONE	`7.02ms` from Huai'an, CN
20.0.30.39	AS8075 Microsoft Corporation	`0.19ms` from London, GB
107.128.44.55	AS7018 AT&T Enterprises, LLC	`2.47ms` from Los Angeles, US
121.19.92.167	AS4837 CHINA UNICOM China169 Backbone	`8.94ms` from Tianjin, CN
71.91.23.39	AS20115 Charter Communications LLC	`15.01ms` from Atlanta, US
49.232.94.39	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.96ms` from Beijing, CN
52.36.224.167	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
73.219.50.87	AS7922 Comcast Cable Communications, LLC	`4.22ms` from Boston, US
173.92.95.39	AS11426 Charter Communications Inc	`9.10ms` from Charlotte, US
163.182.110.119	AS6181 Cincinnati Bell Telephone Company LLC	`1.68ms` from Cincinnati, US
182.185.174.23	AS17557 Pakistan Telecommunication Company Limited	`1.90ms` from Lahore, PK
31.117.236.215	AS2856 British Telecommunications PLC	`6.21ms` from London, GB
119.93.228.119	AS9299 Philippine Long Distance Telephone Company	`2.38ms` from Manila, PH
182.70.160.247	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.73ms` from Mumbai, IN
58.23.141.87	AS4837 CHINA UNICOM China169 Backbone	`14.56ms` from Nanchang, CN
159.85.55.55	AS10737 CellularONE	`0.36ms` from New York City, US
188.49.172.135	AS25019 Saudi Telecom Company JSC	`1.62ms` from Riyadh, SA
93.66.138.247	AS30722 Vodafone Italia S.p.A.	`9.60ms` from Rome, IT
9.142.42.231	AS11404 Wave Broadband	`1.40ms` from San Jose, US
178.232.247.7	AS25400 Telia Norge AS	`2.05ms` from Sandefjord, NO
155.141.246.7	AS668 United States Department of Defense (DoD)	`0.51ms` from Atlanta, US
185.80.172.167	AS39232 Uninet LLC	`1.21ms` from Baku, AZ
77.13.251.183	AS6805 Telefonica Germany GmbH & Co.OHG	`4.79ms` from Berlin, DE
107.223.138.71	AS7018 AT&T Enterprises, LLC	`7.96ms` from Dallas, US
109.215.254.231	AS3215 Orange S.A.	`12.12ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 203.205.49.12

traceroute to 203.205.49.12 (203.205.49.12): 64 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 90.413 ms

2 *

3 *

4 [AS45903] 101.99.48.148 103.625 ms

5 [AS45903] 101.99.48.186 112.899 ms

6 [AS45903] 203.205.49.12 111.468 ms

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

On December 20th 2025

What are IP address ranges?

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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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