123.21.128.0/20

AS45899  ·  VNPT Corp

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

Sign up for free ›

Summary

Country Vietnam
Domain vnpt.com.vn
ASN AS45899
Registry APNIC
ID VNPT-VN

WHOIS Details

inetnum:        123.16.0.0 - 123.31.255.255
netname:        VNPT-VN
descr:          Vietnam Posts and Telecommunications Group
descr:          No 57, Huynh Thuc Khang Street, Lang Ha ward, Dong Da district, Ha Noi City
country:        VN
admin-c:        PTH13-AP
tech-c:         PTH13-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-VN-VNNIC
mnt-lower:      MAINT-VN-VNPT
mnt-routes:     MAINT-VN-VNPT
last-modified:  2018-01-25T03:55:17Z
mnt-irt:        IRT-VNNIC-AP
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:         Pham Tien Huy
address:        VNPT-VN
country:        VN
phone:          +84-24-37741604
e-mail:         huypt@vnpt.vn
nic-hdl:        PTH13-AP
mnt-by:         MAINT-VN-VNPT
last-modified:  2017-11-19T07:06:20Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.21.0.0/16

No nearby ranges found.

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
123.21.130.219 clarehcm.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

Pingable IPs

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

IP Address ASN Details
123.21.129.55 AS45899 VNPT Corp 1.69ms from Ho Chi Minh City, VN
123.21.143.177 AS45899 VNPT Corp 1.43ms from Ho Chi Minh City, VN
123.21.133.147 AS45899 VNPT Corp 1.65ms from Ho Chi Minh City, VN
123.21.137.147 AS45899 VNPT Corp 1.53ms from Ho Chi Minh City, VN
123.21.128.48 AS45899 VNPT Corp 1.47ms from Ho Chi Minh City, VN
123.21.134.46 AS45899 VNPT Corp 1.48ms from Ho Chi Minh City, VN
123.21.140.127 AS45899 VNPT Corp 1.61ms from Ho Chi Minh City, VN
123.21.130.65 AS45899 VNPT Corp 1.63ms from Ho Chi Minh City, VN
123.21.139.1 AS45899 VNPT Corp 1.61ms from Ho Chi Minh City, VN
123.21.131.221 AS45899 VNPT Corp 1.57ms from Ho Chi Minh City, VN
123.21.132.174 AS45899 VNPT Corp 1.60ms from Ho Chi Minh City, VN
123.21.141.224 AS45899 VNPT Corp 1.53ms from Ho Chi Minh City, VN
123.21.135.205 AS45899 VNPT Corp 1.55ms from Ho Chi Minh City, VN
123.21.142.201 AS45899 VNPT Corp 1.68ms from Ho Chi Minh City, VN
123.21.136.96 AS45899 VNPT Corp 1.64ms from Ho Chi Minh City, VN
123.21.138.76 AS45899 VNPT Corp 1.43ms 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
145.107.109.36 AS1103 SURF B.V. 3.62ms from Amsterdam, NL
62.1.209.180 AS1241 Forthnet 1.74ms from Athens, GR
108.162.236.36 AS13335 Cloudflare, Inc. 0.38ms from Atlanta, US
112.192.99.164 AS4837 CHINA UNICOM China169 Backbone 11.04ms from Chengdu, CN
136.30.152.244 AS19165 Webpass Inc. 0.54ms from Chicago, US
216.68.84.4 AS14428 Pomeroy Technologies LLC 1.43ms from Cincinnati, US
123.27.232.180 AS45899 VNPT Corp 2.81ms from Hanoi, VN
82.181.11.68 AS16086 DNA Oyj 4.10ms from Helsinki, FI
119.246.179.228 AS9269 Hong Kong Broadband Network Ltd. 1.07ms from Hong Kong, HK
202.189.10.116 AS139180 Shandong eshinton Network Technology Co., Ltd. 4.69ms from Jinan, CN
41.18.4.84 AS29975 Vodacom 14.09ms from Johannesburg, ZA
5.182.50.180 AS53340 VegasNAP, LLC 0.17ms from Las Vegas, US
109.5.243.180 AS15557 Societe Francaise Du Radiotelephone - SFR SA 1.72ms from Lyon, FR
172.3.151.196 AS7018 AT&T Enterprises, LLC 3.52ms from Miami, US
220.213.195.4 AS17698 COMMUNITY NETWORK CENTER INCORPORATED. 4.94ms from Osaka, JP
174.114.234.20 AS812 Rogers Communications Canada Inc. 4.33ms from Ottawa, CA
140.82.9.116 AS20473 The Constant Company, LLC 0.17ms from Piscataway, US
158.70.113.36 AS7046 Verizon Business 8.18ms from San Jose, US
38.66.66.132 AS174 Cogent Communications, LLC 2.73ms from Secaucus, US
199.116.150.52 AS16260 GTT - EMEA Ltd. 0.26ms from Sydney, AU
1.40.109.52 AS4804 Microplex PTY LTD 1.73ms from Sydney, AU
152.234.95.36 AS26599 TELEFÔNICA BRASIL S.A 7.43ms from São Paulo, BR
140.127.247.68 AS1659 Taiwan Academic Network (TANet) Information Center 8.93ms from Taichung, TW
89.228.86.164 AS21021 Multimedia Polska Sp. z o.o. 10.39ms from Warsaw, PL
212.125.136.4 AS214406 HTCE Site Management BV 3.12ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 123.21.134.127
traceroute to 123.21.134.127 (123.21.134.127): 64 hops max, 52 byte packets
1 [AS15169] 108.170.235.191 173.746 ms
2 *
3 [AS45899] 113.171.7.242 214.489 ms
4 [AS45899] 113.171.49.18 213.679 ms
5 *
6 [AS45899] 123.21.134.127 218.746 ms
Measurement taken from IPinfo ProbeNet in Dallas, US
On

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.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs