221.133.0.0/22

AS7602 · Sai gon Postel Corporation

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Summary

Country	Vietnam
Domain	spt.vn
ASN	AS7602
Parent Range	221.133.0.0/19
Registry	APNIC
ID	IXPHCM-NET

WHOIS Details

inetnum:        221.133.0.0 - 221.133.0.255
netname:        IXPHCM-NET
country:        VN
descr:          IXP tai HCM
admin-c:        HVL2-AP
tech-c:         NTKD1-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-VN-SPT
mnt-irt:        IRT-VNNIC-AP
last-modified:  2017-10-16T07:24:34Z
source:         APNIC

irt:            IRT-VNNIC-AP
address:        Ha Noi, VietNam
phone:          +84-24-35564944
fax-no:         +84-24-37821462
e-mail:         [email protected]
abuse-mailbox:  [email protected]
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:         Ho Van Lanh
address:        10 Co Giang, Dist 1, Ho Chi Minh City
country:        VN
phone:          +84-937668468
e-mail:         [email protected]
nic-hdl:        HVL2-AP
mnt-by:         MAINT-VN-SPT
notify:         [email protected]
last-modified:  2017-09-14T09:35:53Z
source:         APNIC

person:         Nguyen Thi Kim Dan
nic-hdl:        NTKD1-AP
e-mail:         [email protected]
address:        SPT-VN
address:        10 Co Giang, Dist.1, Ho Chi Minh City
phone:          +84-28-54040121
country:        VN
mnt-by:         MAINT-VN-SPT
last-modified:  2022-09-20T06:34:22Z
source:         APNIC

route:          221.133.0.0/24
descr:          SPT-VN
origin:         AS7602
mnt-by:         MAINT-VN-SPT
last-modified:  2022-09-24T18:53:34Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 221.133.0.0/22

Range	ASN	Company	Num of IPs
221.133.0.0/19	AS7602	Sai gon Postel Corporation	8,192

BGP prefixes that are contained by 221.133.0.0/22

Range	ASN	Company	Num of IPs
221.133.0.0/24	AS7602	IXP tai HCM	256
221.133.1.0/24	AS7602	ISP tai HCM	256

Nearby Ranges

BGP prefixes that overlap with 221.133.0.0/16

Range	ASN	Company	Num of IPs
221.133.128.0/18	AS38096	SK Broadband Co Ltd	16,384
221.133.128.0/18	AS9689	SK Broadband Co Ltd	16,384
221.133.64.0/18	AS17534	KANAZAWA CABLE TELEVISION NET CO.,LTD.	16,384
221.133.0.0/19	AS7602	Sai gon Postel Corporation	8,192
221.133.192.0/19	AS703	Verizon Australia PTY Limited	8,192
221.133.40.0/21	AS134809	MacroLynx Sdn Bhd	2,048
221.133.32.0/21	AS134809	MacroLynx Sdn Bhd	2,048
221.133.12.0/22	AS7602	Core Network	1,024
221.133.24.0/22	AS7602	ADSL service	1,024
221.133.16.0/22	AS7602	ISP tai POP Ha Noi	1,024
221.133.63.0/24	AS9712	INet Technologies Co., Ltd.	256
221.133.55.0/24	AS55615	DOUZONEBIZON	256
221.133.0.0/24	AS7602	IXP tai HCM	256
221.133.1.0/24	AS7602	ISP tai HCM	256
221.133.54.0/24	AS9712	INet Technologies Co., Ltd.	256
221.133.61.0/24	AS9712	INet Technologies Co., Ltd.	256

Hosted domains

There are 83 domain names hosted across 8 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
221.133.0.2	hcmtax.gov.vn	58
221.133.1.48	saigonnews.net.vn	2

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

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

IP Address	ASN	Details
221.133.3.83	AS7602 Sai gon Postel Corporation	`2.22ms` from Ho Chi Minh City, VN
221.133.0.2	AS7602 Sai gon Postel Corporation	`1.96ms` from Ho Chi Minh City, VN
221.133.1.242	AS7602 Sai gon Postel Corporation	`1.89ms` from Ho Chi Minh City, VN
221.133.2.194	AS7602 Sai gon Postel Corporation	`1.87ms` 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
154.55.98.214	AS5650 Frontier Communications of America, Inc.	`0.26ms` from Ashburn, US
221.196.4.230	AS4837 CHINA UNICOM China169 Backbone	`5.53ms` from Beijing, CN
162.229.251.54	AS7018 AT&T Enterprises, LLC	`1.88ms` from Dallas, US
87.154.2.198	AS3320 Deutsche Telekom AG	`5.17ms` from Duesseldorf, DE
104.8.219.230	AS7018 AT&T Enterprises, LLC	`2.97ms` from Miami, US
178.172.134.102	AS60857 TV-Com Join Limited Company	`4.56ms` from Minsk, BY
153.202.190.86	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.57ms` from Osaka, JP
61.38.236.86	AS3786 LG DACOM Corporation	`5.16ms` from Seoul, KR
119.217.4.6	AS4766 Korea Telecom	`6.98ms` from Seoul, KR
178.23.114.86	AS2586 Elisa Eesti AS	`0.45ms` from Tallinn, EE
159.226.49.22	AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)	`3.83ms` from Beijing, CN
50.33.29.134	AS5650 Frontier Communications of America, Inc.	`14.25ms` from Chicago, US
131.188.214.198	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`3.95ms` from Frankfurt am Main, DE
46.101.38.246	AS14061 DigitalOcean, LLC	`0.32ms` from London, GB
86.151.95.214	AS2856 British Telecommunications PLC	`7.60ms` from London, GB
91.125.126.134	AS6871 Plusnet	`5.09ms` from London, GB
2.62.208.134	AS12389 PJSC Rostelecom	`7.76ms` from Novosibirsk, RU
101.140.28.22	AS17511 OPTAGE Inc.	`2.44ms` from Osaka, JP
118.105.149.134	AS18126 Chubu Telecommunications Company, Inc.	`4.45ms` from Osaka, JP
39.85.35.102	AS4837 CHINA UNICOM China169 Backbone	`6.15ms` from Qingdao, CN
3.222.79.182	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
67.198.240.6	AS35908 Krypt Technologies	`0.31ms` from Secaucus, US
222.93.172.214	AS140292 CHINATELECOM Jiangsu province Suzhou 5G network	`7.20ms` from Shanghai, CN
219.228.72.102	AS4538 China Education and Research Network Center	`2.90ms` from Shanghai, CN
178.42.172.54	AS5617 Orange Polska Spolka Akcyjna	`6.64ms` from Warsaw, PL

Traceroute

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

traceroute -a -n -q1 221.133.3.145

traceroute to 221.133.3.145 (221.133.3.145): 64 hops max, 52 byte packets

1 [AS132372] 103.161.133.253 6.359 ms

2 [] 27.111.228.211 6.18 ms

3 [AS9902] 123.108.254.14 6.218 ms

4 *

5 [AS135273] 167.179.62.41 120.57 ms

6 *

7 *

8 *

9 [AS24088] 103.130.211.109 42.603 ms

10 [AS7602] 221.133.3.145 42.143 ms

Measurement taken from

IPinfo ProbeNet in Sepang, MY

On December 14th 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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