103.221.228.0/24

AS63747 · Central Post and Telecommunication (CPT)

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Summary

Country	Vietnam
Domain	cpt.gov.vn
ASN	AS63747
Registry	APNIC
ID	BUUDIENCP16-VN

WHOIS Details

inetnum:        103.221.228.0 - 103.221.231.255
netname:        BUUDIENCP16-VN
descr:          CP16-The Authority of Central Post
descr:          No5 Ong Ich Khiem, Dien Bien, Ba Dinh, HaNoi
admin-c:        NMT24-AP
tech-c:         PDC12-AP
country:        VN
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
mnt-routes:     MAINT-VN-VNNIC
status:         ASSIGNED PORTABLE
last-modified:  2019-09-25T03:02:40Z
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:         Nguyen Minh Thu
address:        BUUDIENCP16-VN
country:        VN
phone:          +84-08042777
e-mail:         minhthu@cpt.gov.vn
nic-hdl:        NMT24-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2019-09-25T02:59:31Z
source:         APNIC

person:         Pham Duy Canh
address:        BUUDIENCP16-VN
country:        VN
phone:          +84-08041219
e-mail:         pdcanh@cpt.gov.vn
nic-hdl:        PDC12-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2019-09-25T03:00:02Z
source:         APNIC

route:          103.221.228.0/22
descr:          BUUDIENCP16-VN
notify:         pdcanh@cpt.gov.vn
last-modified:  2017-10-18T03:21:00Z
origin:         AS63747
mnt-by:         MAINT-VN-VNNIC
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 103.221.0.0/16

Range	ASN	Company	Num of IPs
103.221.220.0/22	AS63760	AZDIGI Corporation	1,024
103.221.208.0/22	AS135232	Ipnet Broadband Network Pvt Ltd	1,024
103.221.52.0/22	AS203020	HostRoyale Technologies Pvt Ltd	1,024
103.221.140.0/22	AS4837	Nangjing sichongzou kemao Ltd.	1,024
103.221.56.0/22	AS132817	DZCRD Networks Ltd	1,024
103.221.248.0/22	AS55352	7i Infotech	1,024
103.221.140.0/22	AS137702	Nangjing sichongzou kemao Ltd.	1,024
103.221.66.0/23	AS138362	A Cloud Planet	512
103.221.64.0/23	AS151405	WISE CABLE TV	512
103.221.87.0/24	AS55920	Elcom Technology Pty Ltd	256
103.221.244.0/24	AS56056	AMITY	256
103.221.232.0/24	AS203020	HostRoyale Technologies India Network	256
103.221.247.0/24	AS131471	LOGIN	256
103.221.245.0/24	AS135526	KM Holdings Pty Ltd	256
103.221.66.0/24	AS138362	PLEXUS CLOUD	256
103.221.67.0/24	AS138362	PLEXUS CLOUD	256
103.221.246.0/24	AS131471	LOGIN	256
103.221.234.0/24	AS203020	HostRoyale Technologies India Network	256
103.221.235.0/24	AS203020	HostRoyale Technologies India Network	256
103.221.86.0/24	AS55311	Loc Phat Vietnam Joint Stock Commercial Bank	256

Hosted domains

There are 4 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
103.221.228.38	ubdt.gov.vn	4

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

Read more

Pingable IPs

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

IP Address	ASN	Details
103.221.228.118	AS63747 Central Post and Telecommunication (CPT)	`1.09ms` 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
98.71.136.56	AS8075 Microsoft Corporation	`0.28ms` from Amsterdam, NL
110.253.198.40	AS4837 CHINA UNICOM China169 Backbone	`4.07ms` from Beijing, CN
24.91.109.232	AS7922 Comcast Cable Communications, LLC	`8.13ms` from Boston, US
45.70.89.72	AS52477 ApInter	`3.21ms` from Buenos Aires, AR
23.61.161.216	AS16625 Akamai Technologies, Inc.	`0.93ms` from Chicago, US
23.115.165.248	AS7018 AT&T Enterprises, LLC	`13.06ms` from Chicago, US
148.170.23.120	AS397879 Luminate Fiber LLC	`5.72ms` from Denver, US
2.139.82.168	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.57ms` from Madrid, ES
92.153.94.152	AS3215 Orange S.A.	`7.63ms` from Marseille, FR
50.210.241.40	AS7922 Comcast Cable Communications, LLC	`7.09ms` from Morris Plains, US
223.214.161.8	AS4134 CHINANET-BACKBONE	`12.61ms` from Nanchang, CN
60.137.14.120	AS17676 SoftBank Corp.	`4.16ms` from Osaka, JP
114.191.137.24	AS4713 NTT DOCOMO BUSINESS,Inc.	`14.91ms` from Osaka, JP
89.88.61.88	AS5410 Bouygues Telecom SA	`2.23ms` from Paris, FR
20.226.232.248	AS8075 Microsoft Corporation	`0.19ms` from Sao Paulo, BR
135.169.138.24	AS18676 Avaya LLC	`2.60ms` from Sydney, AU
92.63.204.232	AS201767 "Uzbektelekom" Joint Stock Company	`0.54ms` from Tashkent, UZ
99.233.81.88	AS812 Rogers Communications Canada Inc.	`5.41ms` from Toronto, CA
4.180.116.56	AS8075 Microsoft Corporation	`0.27ms` from Amsterdam, NL
24.179.42.216	AS20115 Charter Communications LLC	`9.86ms` from Atlanta, US
183.172.87.104	AS4538 China Education and Research Network Center	`4.51ms` from Beijing, CN
20.223.102.136	AS8075 Microsoft Corporation	`0.17ms` from Dublin, IE
47.150.60.184	AS5650 Frontier Communications of America, Inc.	`2.06ms` from Los Angeles, US
103.161.197.120	AS141700 CLOUD NINE COMMUNICATIONS PTY LTD	`0.43ms` from Melbourne, AU
37.192.254.168	AS31200 Novotelecom Ltd	`1.26ms` from Novosibirsk, RU

Traceroute

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

traceroute -a -n -q1 103.221.228.37

traceroute to 103.221.228.37 (103.221.228.37): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.87 9.015 ms

2 *

3 [AS45899] 113.171.5.198 71.904 ms

4 [AS45899] 113.171.34.18 67.85 ms

5 *

6 *

7 *

8 *

9 [AS63747] 103.221.228.37 72.441 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On January 19th 2026

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.

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