183.91.28.0/23

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:        183.91.0.0 - 183.91.31.255
netname:        CMCTELECOM-VN
descr:          CMC Telecom Infrastructure Company
descr:          CMC Tower, Duy Tan, Cau Giay, Hanoi, Vietnam
country:        VN
admin-c:        HVA2-AP
tech-c:         NVH31-AP
status:         ALLOCATED PORTABLE
remarks:        send spam and abuse report to inoc@cmctelecom.vn
mnt-by:         MAINT-VN-VNNIC
mnt-lower:      MAINT-VN-VNNIC
mnt-routes:     MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
last-modified:  2023-08-31T05:00:45Z
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:          183.91.0.0/19
descr:          CMCTELECOM-VN
origin:         AS45903
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-09-19T02:31:42Z
source:         APNIC

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
183.91.29.244	AS45903 CMC Telecom Infrastructure Company	`1.27ms` from Ho Chi Minh City, VN
183.91.28.123	AS45903 CMC Telecom Infrastructure Company	`1.94ms` 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
178.118.132.7	AS6848 Telenet BV	`9.87ms` from Brussels, BE
186.236.128.55	AS22689 SERCOMTEL S/A TELECOMUNICACOES	`5.60ms` from Curitiba, BR
40.143.43.199	AS17378 TierPoint, LLC	`1.78ms` from Durham, US
212.149.182.247	AS16086 DNA Oyj	`2.45ms` from Helsinki, FI
172.111.140.7	AS9009 M247 Europe SRL	`0.31ms` from London, GB
74.120.168.183	AS25820 IT7 Networks Inc	`0.22ms` from Los Angeles, US
80.102.76.87	AS12479 Orange Espagne SA	`16.52ms` from Madrid, ES
62.35.235.183	AS5410 Bouygues Telecom SA	`8.49ms` from Marseille, FR
189.139.227.55	AS8151 UNINET	`1.50ms` from Mexico City, MX
142.162.234.87	AS855 Bell Canada	`13.97ms` from Montreal, CA
192.157.183.23	AS393946 Renesas Electronics America Inc.	`3.10ms` from Orlando, US
126.214.68.167	AS17676 SoftBank Corp.	`4.19ms` from Osaka, JP
189.128.74.119	AS8151 UNINET	`1.21ms` from Santiago de Queretaro, MX
187.198.218.167	AS8151 UNINET	`9.95ms` from Santiago de Queretaro, MX
73.193.180.199	AS7922 Comcast Cable Communications, LLC	`7.49ms` from Secaucus, US
220.126.181.103	AS4766 Korea Telecom	`1.62ms` from Seoul, KR
183.100.67.215	AS4766 Korea Telecom	`2.04ms` from Seoul, KR
49.176.53.7	AS4804 Microplex PTY LTD	`19.77ms` from Sydney, AU
126.117.252.55	AS17676 SoftBank Corp.	`3.04ms` from Tokyo, JP
130.62.78.215	AS55391 INTERNET MULTIFEED CO.	`2.32ms` from Tokyo, JP
195.243.230.247	AS3320 Deutsche Telekom AG	`2.58ms` from Frankfurt am Main, DE
51.77.223.119	AS16276 OVH SAS	`0.15ms` from Gravelines, FR
217.42.129.87	AS2856 British Telecommunications PLC	`6.52ms` from London, GB
69.136.119.231	AS7922 Comcast Cable Communications, LLC	`12.10ms` from Los Angeles, US
95.123.58.199	AS3352 TELEFONICA DE ESPANA S.A.U.	`5.34ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f4 183.91.29.236

traceroute to 183.91.29.236 (183.91.29.236): 64 hops max, 52 byte packets

4 [AS45903] 203.205.56.111 47.538 ms

5 [AS45903] 203.205.56.147 47.656 ms

6 [AS45903] 183.91.29.236 47.643 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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