101.99.20.0/23

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:        101.99.0.0 - 101.99.63.255
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-irt:        IRT-VNNIC-AP
last-modified:  2023-08-31T04:57:19Z
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:          101.99.0.0/18
descr:          CMCTELECOM-VN
origin:         AS45903
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-09-19T02:30:34Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 101.99.0.0/16

Range	ASN	Company	Num of IPs
101.99.128.0/17	AS3605	Kuentos Communications, Inc.	32,768
101.99.64.0/24	AS45839	Shinjiru Technology Sdn. Bhd.	256

Hosted domains

There are 20 domain names hosted across 12 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
101.99.20.90	bitexco.vn	2
101.99.20.6	isofh.com	2
101.99.20.4	mescovn.vn	1
101.99.20.166	tescogroup.com.vn	1

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
101.99.21.147	AS45903 CMC Telecom Infrastructure Company	`1.09ms` from Hanoi, VN
101.99.20.85	AS45903 CMC Telecom Infrastructure Company	`1.08ms` 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
164.49.28.167	AS668 United States Department of Defense (DoD)	`0.52ms` from Atlanta, US
120.6.206.151	AS4837 CHINA UNICOM China169 Backbone	`9.97ms` from Beijing, CN
81.182.234.71	AS5483 Magyar Telekom Plc.	`3.78ms` from Budapest, HU
154.194.143.167	AS139880 OWGELS INTERNATIONAL CO., LIMITED	`0.42ms` from Hong Kong, HK
23.44.9.167	AS20940 Akamai International B.V.	`0.53ms` from Hong Kong, HK
70.140.163.135	AS7018 AT&T Enterprises, LLC	`18.70ms` from Houston, US
178.238.234.103	AS51167 Contabo GmbH	`0.12ms` from Lauterbourg, FR
101.191.100.231	AS1221 Telstra Limited	`5.89ms` from Melbourne, AU
206.172.130.55	AS577 Bell Canada	`4.85ms` from Montreal, CA
217.174.11.71	AS34629 "Resurs-Svyaz" Ltd	`5.46ms` from Moscow, RU
73.192.87.71	AS7922 Comcast Cable Communications, LLC	`4.63ms` from Orlando, US
211.169.93.55	AS3786 LG DACOM Corporation	`2.83ms` from Seoul, KR
8.211.180.119	AS45102 Alibaba (US) Technology Co., Ltd.	`1.83ms` from Tokyo, JP
70.121.144.183	AS11427 Charter Communications Inc	`10.39ms` from Dallas, US
97.247.174.135	AS6167 Verizon Business	`14.33ms` from Dallas, US
27.6.249.231	AS17488 Hathway IP Over Cable Internet	`1.92ms` from Delhi, IN
200.125.221.247	AS28006 CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP	`2.15ms` from Guayaquil, EC
157.157.234.55	AS6677 Mila hf	`5.37ms` from Hafnarfjoerdur, IS
111.186.83.103	AS4538 China Education and Research Network Center	`9.34ms` from Hangzhou, CN
218.25.197.103	AS4837 CHINA UNICOM China169 Backbone	`10.91ms` from Liaoyang, CN
76.87.85.215	AS20001 Charter Communications Inc	`6.49ms` from Los Angeles, US
104.35.108.151	AS20001 Charter Communications Inc	`6.34ms` from Los Angeles, US
178.94.223.103	AS2914 NTT America, Inc.	`0.32ms` from Los Angeles, US
196.3.4.55	AS3586 University of the West Indies	`17.88ms` from Miami, US
35.143.108.167	AS33363 Charter Communications, Inc	`11.16ms` from Orlando, US

Traceroute

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

traceroute -a -n -q1 101.99.21.37

traceroute to 101.99.21.37 (101.99.21.37): 64 hops max, 52 byte packets

1 [AS15169] 72.14.239.92 172.388 ms

2 *

3 [AS45903] 101.99.0.25 209.329 ms

4 [AS45903] 101.99.21.37 235.415 ms

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On November 22nd 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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