123.21.128.0/20

AS45899  ·  VNPT Corp

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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:  2025-11-17T23:08:34Z
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

route:          123.30.64.0/24
descr:          VNPT
origin:         AS45899
mnt-by:         MAINT-VN-VNPT
last-modified:  2022-07-29T19:30:10Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 123.21.0.0/16

No nearby ranges found.

Hosted domains

There are 2 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
123.21.130.219 clarehcm.com.vn 1
123.21.136.180 hieult.click 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

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

IP Address ASN Details
123.21.131.148 AS45899 VNPT Corp 1.64ms from Ho Chi Minh City, VN
123.21.143.135 AS45899 VNPT Corp 1.47ms from Ho Chi Minh City, VN
123.21.128.247 AS45899 VNPT Corp 1.50ms from Ho Chi Minh City, VN
123.21.135.126 AS45899 VNPT Corp 1.59ms from Ho Chi Minh City, VN
123.21.142.23 AS45899 VNPT Corp 1.32ms from Ho Chi Minh City, VN
123.21.130.237 AS45899 VNPT Corp 1.69ms from Ho Chi Minh City, VN
123.21.139.216 AS45899 VNPT Corp 1.66ms from Ho Chi Minh City, VN
123.21.137.133 AS45899 VNPT Corp 1.40ms from Ho Chi Minh City, VN
123.21.133.192 AS45899 VNPT Corp 1.69ms from Ho Chi Minh City, VN
123.21.141.173 AS45899 VNPT Corp 1.57ms from Ho Chi Minh City, VN
123.21.134.65 AS45899 VNPT Corp 1.17ms from Ho Chi Minh City, VN
123.21.138.185 AS45899 VNPT Corp 1.47ms from Ho Chi Minh City, VN
123.21.136.147 AS45899 VNPT Corp 1.58ms from Ho Chi Minh City, VN
123.21.129.174 AS45899 VNPT Corp 1.68ms from Ho Chi Minh City, VN
123.21.140.138 AS45899 VNPT Corp 1.46ms from Ho Chi Minh City, VN
123.21.132.236 AS45899 VNPT Corp 0.99ms 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
52.90.168.132 AS14618 Amazon.com, Inc. 0.89ms from Ashburn, US
172.125.52.148 AS7018 AT&T Enterprises, LLC 9.08ms from Atlanta, US
124.207.218.68 AS4808 China Unicom Beijing Province Network 5.14ms from Beijing, CN
176.68.234.244 AS1257 Tele2 Sverige AB 3.91ms from Falkenberg, SE
91.13.187.116 AS3320 Deutsche Telekom AG 4.89ms from Frankfurt am Main, DE
85.118.0.4 AS13009 Redcentric Solutions Ltd 1.58ms from London, GB
172.3.151.196 AS7018 AT&T Enterprises, LLC 3.28ms from Miami, US
84.246.228.244 AS34177 CELESTE SAS 6.21ms from Paris, FR
89.84.114.180 AS5410 Bouygues Telecom SA 1.96ms from Paris, FR
119.189.162.132 AS4837 CHINA UNICOM China169 Backbone 7.45ms from Qingdao, CN
119.162.238.148 AS4837 CHINA UNICOM China169 Backbone 7.06ms from Qingdao, CN
123.56.191.132 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.13ms from Beijing, CN
91.19.174.228 AS3320 Deutsche Telekom AG 2.45ms from Berlin, DE
54.187.6.180 AS16509 Amazon.com, Inc. 0.25ms from Boardman, US
20.211.250.196 AS8075 Microsoft Corporation 0.54ms from Melbourne, AU
88.50.96.228 AS3269 Telecom Italia S.p.A. 0.69ms from Milan, IT
167.62.71.132 AS6057 Administracion Nacional de Telecomunicaciones 1.69ms from Montevideo, UY
45.169.219.244 AS268125 Jequie Telecom Servicos Ltda. 18.32ms from Osasco, BR
90.35.52.100 AS3215 Orange S.A. 4.32ms from Paris, FR
184.103.190.20 AS209 CenturyLink Communications, LLC 2.03ms from Phoenix, US
97.185.205.20 AS6167 Verizon Business 9.59ms from Portland, US
179.170.93.20 AS26599 TELEFÔNICA BRASIL S.A 15.22ms from Rio de Janeiro, BR
45.26.148.68 AS7018 AT&T Enterprises, LLC 3.67ms from San Antonio, US
24.181.239.228 AS20115 Charter Communications LLC 13.31ms from Ashburn, US
27.7.89.244 AS17488 Hathway IP Over Cable Internet 1.08ms from Bengaluru, IN

Traceroute

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

$
traceroute -a -n -q1 123.21.128.196
traceroute to 123.21.128.196 (123.21.128.196): 64 hops max, 52 byte packets
1 [AS15169] 74.125.251.87 146.603 ms
2 *
3 [AS45899] 113.171.7.34 230.859 ms
4 [AS45899] 113.171.49.18 263.203 ms
5 *
6 [AS45899] 123.21.128.196 231.813 ms
Measurement taken from IPinfo ProbeNet in Council Bluffs, 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.

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