183.91.4.0/22

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 18 domain names hosted across 10 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
183.91.4.177	luutruquocgia1.org.vn	2
183.91.4.113	nagase.com.vn	1
183.91.4.76	msell.com.vn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
183.91.6.86	AS45903 CMC Telecom Infrastructure Company	`1.11ms` from Hanoi, VN
183.91.5.9	AS45903 CMC Telecom Infrastructure Company	`1.07ms` from Hanoi, VN
183.91.7.239	AS45903 CMC Telecom Infrastructure Company	`1.13ms` from Hanoi, VN
183.91.4.178	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
15.204.225.166	AS16276 OVH SAS	`1.36ms` from Ashburn, US
40.136.249.70	AS7029 Windstream Communications LLC	`4.66ms` from Atlanta, US
95.105.228.182	AS15962 Orange Slovensko a.s.	`1.42ms` from Bratislava, SK
209.251.29.246	AS395301 Resound Networks, LLC	`6.24ms` from Dallas, US
77.186.39.38	AS6805 Telefonica Germany GmbH & Co.OHG	`3.92ms` from Frankfurt am Main, DE
182.65.242.246	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.24ms` from Hyderabad, IN
79.145.127.54	AS3352 TELEFONICA DE ESPANA S.A.U.	`7.68ms` from Madrid, ES
83.43.71.198	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.25ms` from Madrid, ES
126.214.83.182	AS17676 SoftBank Corp.	`4.43ms` from Osaka, JP
60.141.7.22	AS17676 SoftBank Corp.	`4.01ms` from Osaka, JP
58.95.159.198	AS4713 NTT Communications Corporation	`16.78ms` from Osaka, JP
89.250.113.198	AS25148 ORANGE BUSINESS DIGITAL NORWAY AS	`0.56ms` from Oslo, NO
39.79.103.214	AS4837 CHINA UNICOM China169 Backbone	`6.32ms` from Qingdao, CN
119.190.253.38	AS4837 CHINA UNICOM China169 Backbone	`5.51ms` from Qingdao, CN
96.89.38.182	AS7922 Comcast Cable Communications, LLC	`12.76ms` from Reston, US
60.227.22.86	AS1221 Telstra Limited	`4.67ms` from Sydney, AU
171.120.223.6	AS4837 CHINA UNICOM China169 Backbone	`3.13ms` from Taiyuan, CN
153.126.210.6	AS7684 SAKURA Internet Inc.	`16.40ms` from Tokyo, JP
173.91.168.198	AS10796 Charter Communications Inc	`11.45ms` from Toronto, CA
66.163.26.70	AS21724 GOCO TECHNOLOGY LIMITED PARTNERSHIP	`0.20ms` from Toronto, CA
158.85.96.86	AS36351 IBM Cloud	`0.80ms` from Toronto, CA
52.91.220.22	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
221.198.251.230	AS4837 CHINA UNICOM China169 Backbone	`5.88ms` from Beijing, CN
200.103.46.166	AS8167 V tal	`1.18ms` from Brasilia, BR
78.23.98.86	AS6848 Telenet BV	`7.70ms` from Brussels, BE

Traceroute

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

traceroute -a -n -q1 -f5 183.91.5.93

traceroute to 183.91.5.93 (183.91.5.93): 64 hops max, 52 byte packets

5 [AS3491] 63.220.192.235 202.137 ms

6 [AS45903] 101.99.0.25 292.716 ms

7 [AS45903] 183.91.5.93 291.383 ms

Measurement taken from

IPinfo ProbeNet in Nairobi, KE

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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