183.91.18.0/23

AS45903 · CMC Telecom Infrastructure Company

Need more data or want to access it via API or data downloads? Sign up to get free access

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:  2025-10-08T04:42:43Z
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

Nearby Ranges

BGP prefixes that overlap with 183.91.0.0/16

Range	ASN	Company	Num of IPs
183.91.192.0/18	AS9976	Namincheon Brodcasting Co., Ltd.	16,384
183.91.96.0/19	AS18278	Cable TV Corporation	8,192
183.91.144.0/20	AS10212	China Enterprise ICT Solutions Limited	4,096
183.91.40.0/21	AS4134	CHINANET HongKong region network	2,048
183.91.132.0/22	AS45170	GPO BOX 13655	1,024
183.91.90.0/24	AS4800	APLIKANUSA LINTASARTA	256
183.91.91.0/24	AS4800	APLIKANUSA LINTASARTA	256
183.91.92.0/24	AS4800	APLIKANUSA LINTASARTA	256
183.91.93.0/24	AS4800	APLIKANUSA LINTASARTA	256
183.91.94.0/24	AS4800	APLIKANUSA LINTASARTA	256
183.91.95.0/24	AS4800	APLIKANUSA LINTASARTA'	256
183.91.89.0/24	AS4800	APLIKANUSA LINTASARTA	256

Hosted domains

There are 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
183.91.18.142	AS45903 CMC Telecom Infrastructure Company	`1.35ms` from Ho Chi Minh City, VN
183.91.19.86	AS45903 CMC Telecom Infrastructure Company	`1.33ms` 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
220.194.68.23	AS4837 CHINA UNICOM China169 Backbone	`5.05ms` from Beijing, CN
121.17.162.215	AS4837 CHINA UNICOM China169 Backbone	`10.43ms` from Beijing, CN
201.79.199.231	AS7738 V tal	`1.09ms` from Fortaleza, BR
87.190.231.167	AS3320 Deutsche Telekom AG	`2.07ms` from Hamburg, DE
106.202.217.215	AS24560 Bharti Airtel Ltd., Telemedia Services	`14.94ms` from Kolkata, IN
77.97.24.167	AS5089 Virgin Media Limited	`8.43ms` from London, GB
173.25.125.167	AS30036 Mediacom Communications Corp	`5.26ms` from Minneapolis, US
37.140.144.39	AS13238 YANDEX LLC	`18.93ms` from Moscow, RU
73.190.157.135	AS7922 Comcast Cable Communications, LLC	`13.81ms` from Murfreesboro, US
182.110.65.23	AS4134 CHINANET-BACKBONE	`5.77ms` from Nanchang, CN
78.203.8.231	AS12322 Free SAS	`10.87ms` from Paris, FR
76.19.138.7	AS7922 Comcast Cable Communications, LLC	`10.77ms` from Providence, US
113.201.237.119	AS4837 CHINA UNICOM China169 Backbone	`9.92ms` from Xi'an, CN
47.93.175.135	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.88ms` from Beijing, CN
23.195.247.215	AS16625 Akamai Technologies, Inc.	`0.21ms` from Chennai, IN
99.78.127.231	AS7018 AT&T Enterprises, LLC	`3.00ms` from Dallas, US
99.70.105.151	AS7018 AT&T Enterprises, LLC	`3.01ms` from Houston, US
92.46.157.215	AS9198 JSC Kazakhtelecom	`7.42ms` from Karagandy, KZ
5.139.52.39	AS12389 PJSC Rostelecom	`10.64ms` from Krasnodar, RU
88.31.243.103	AS3352 TELEFONICA DE ESPANA S.A.U.	`19.49ms` from Madrid, ES
2.7.139.167	AS3215 Orange S.A.	`8.12ms` from Marseille, FR
47.192.104.247	AS5650 Frontier Communications of America, Inc.	`12.21ms` from Miami, US
40.64.23.103	AS8075 Microsoft Corporation	`14.40ms` from Mumbai, IN
97.102.251.55	AS33363 Charter Communications, Inc	`9.36ms` from Orlando, US
123.128.49.215	AS4837 CHINA UNICOM China169 Backbone	`7.03ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f3 183.91.18.233

traceroute to 183.91.18.233 (183.91.18.233): 64 hops max, 52 byte packets

3 [AS45903] 203.205.56.111 216.746 ms

4 [AS45903] 183.91.18.233 218.857 ms

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On October 17th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales