203.205.1.0/24

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:         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:  2025-11-17T23:08:34Z
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

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

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

IP Address	ASN	Details
203.205.1.2	AS45903 CMC Telecom Infrastructure Company	`1.66ms` from Ho Chi Minh City, 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
34.217.52.40	AS16509 Amazon.com, Inc.	`0.48ms` from Boardman, US
180.216.99.8	AS4804 Microplex PTY LTD	`5.35ms` from Brisbane, AU
129.16.80.88	AS2841 Chalmers University of Technology	`0.72ms` from Goeteborg, SE
96.30.43.184	AS32244 Liquid Web, L.L.C	`0.21ms` from Lansing, US
173.31.156.88	AS30036 Mediacom Communications Corp	`15.22ms` from Minneapolis, US
109.186.14.184	AS1680 Cellcom Fixed Line Communication L.P	`2.90ms` from Tel Aviv, IL
120.51.84.248	AS2519 ARTERIA Networks Corporation	`7.72ms` from Tokyo, JP
184.84.184.136	AS16625 Akamai Technologies, Inc.	`0.10ms` from Toronto, CA
24.126.36.72	AS7922 Comcast Cable Communications, LLC	`8.32ms` from Ashburn, US
203.154.127.104	AS4618 Internet Thailand Company Limited	`0.65ms` from Bangkok, TH
73.149.149.232	AS7922 Comcast Cable Communications, LLC	`5.50ms` from Boston, US
91.181.44.72	AS5432 Proximus NV	`2.13ms` from Brussels, BE
85.22.58.8	AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH	`6.35ms` from Frankfurt am Main, DE
87.166.168.232	AS3320 Deutsche Telekom AG	`5.69ms` from Frankfurt am Main, DE
106.40.170.152	AS4134 CHINANET-BACKBONE	`1.28ms` from Hohhot, CN
119.183.188.88	AS4837 CHINA UNICOM China169 Backbone	`3.46ms` from Jinan, CN
193.237.176.232	AS5378 Vodafone Limited	`3.77ms` from London, GB
69.178.221.120	AS12042 Fidium	`7.64ms` from Minneapolis, US
34.74.58.152	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
180.146.206.136	AS17511 OPTAGE Inc.	`1.45ms` from Osaka, JP
88.186.216.8	AS12322 Free SAS	`4.86ms` from Paris, FR
51.159.124.24	AS12876 SCALEWAY S.A.S.	`0.57ms` from Paris, FR
129.20.111.8	AS2200 Renater	`6.79ms` from Paris, FR
193.203.13.184	AS212238 Datacamp Limited	`0.08ms` from Stockholm, SE
3.222.36.152	AS14618 Amazon.com, Inc.	`0.52ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 -f4 203.205.1.2

traceroute to 203.205.1.2 (203.205.1.2): 64 hops max, 52 byte packets

4 [AS18403] 210.245.50.1 1.24 ms

5 [AS18403] 118.69.250.111 3.801 ms

6 [AS18403] 58.186.4.14 1.168 ms

7 [AS45903] 203.205.56.109 1.46 ms

8 [AS45903] 203.205.1.2 2.549 ms

Measurement taken from

IPinfo ProbeNet in Ho Chi Minh City, VN

On December 28th 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.

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