183.91.2.0/23

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 are 14 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
183.91.2.71	phuquyland.com.vn	1

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

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Pingable IPs

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

IP Address	ASN	Details
183.91.3.44	AS45903 CMC Telecom Infrastructure Company	`1.15ms` from Hanoi, VN
183.91.2.199	AS45903 CMC Telecom Infrastructure Company	`1.20ms` 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
131.128.198.247	AS14348 University of Rhode Island	`3.81ms` from Boston, US
66.69.221.23	AS11427 Charter Communications Inc	`12.17ms` from Dallas, US
54.228.245.247	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
182.90.208.39	AS4837 CHINA UNICOM China169 Backbone	`11.11ms` from Guangzhou, CN
218.108.249.119	AS24139 Huashu media&Network Limited	`5.53ms` from Hangzhou, CN
202.51.58.23	AS30860 Virtual Systems LLC	`0.13ms` from Kyiv, UA
113.224.114.183	AS4837 CHINA UNICOM China169 Backbone	`8.60ms` from Liaoyang, CN
89.115.140.135	AS12353 Vodafone Portugal	`2.65ms` from Lisbon, PT
90.69.52.103	AS12479 Orange Espagne SA	`10.11ms` from Madrid, ES
79.35.238.87	AS3269 Telecom Italia S.p.A.	`9.36ms` from Milan, IT
114.150.46.39	AS4713 NTT Communications Corporation	`11.33ms` from Osaka, JP
179.33.158.39	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`16.79ms` from Panama, PA
193.86.140.215	AS13036 T-Mobile Czech Republic a.s.	`4.00ms` from Prague, CZ
54.158.1.231	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
52.76.73.183	AS16509 Amazon.com, Inc.	`0.16ms` from Singapore, SG
194.209.109.7	AS3303 Swisscom (Switzerland) Ltd	`0.77ms` from Zuerich, CH
145.3.202.199	AS1103 SURF B.V.	`5.84ms` from Amsterdam, NL
64.108.59.23	AS7018 AT&T Enterprises, LLC	`3.34ms` from Atlanta, US
41.44.177.87	AS8452 TE-AS	`5.16ms` from Cairo, EG
75.183.119.87	AS11426 Charter Communications Inc	`9.79ms` from Charlotte, US
120.39.207.23	AS133774 Fuzhou	`0.38ms` from Fuzhou, CN
187.140.157.215	AS8151 UNINET	`5.46ms` from Guadalajara, MX
91.217.144.7	AS25133 LLC "McLaut-Invest"	`4.63ms` from Kyiv, UA
175.17.226.71	AS4837 CHINA UNICOM China169 Backbone	`11.32ms` from Liaoyang, CN
207.151.20.71	AS27609 USC-University Hospital	`2.44ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f5 183.91.3.159

traceroute to 183.91.3.159 (183.91.3.159): 64 hops max, 52 byte packets

5 [AS45903] 183.91.12.129 359.807 ms

6 [AS45903] 183.91.3.159 363.034 ms

Measurement taken from

IPinfo ProbeNet in Quito, EC

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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