1. All IP Ranges
  2. 221.0.0.0/8
  3. 221.133.0.0/16
  4. AS7602  | 221.133.0.0/20

221.133.0.0/20

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 SPT-VN

WHOIS Details

inetnum:        221.133.0.0 - 221.133.31.255
netname:        SPT-VN
country:        VN
descr:          Sai gon Postel Corporation
descr:          10 Co Giang, Cau Ong Lanh Ward, District 1, Ho Chi Minh City, Vietnam
admin-c:        NTKD1-AP
tech-c:         NBAD1-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
mnt-lower:      MAINT-VN-SPT
mnt-routes:     MAINT-VN-SPT
last-modified:  2022-09-26T08:39:02Z
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:         Nguyen Ba Anh Dung
address:        SPT-VN
country:        VN
phone:          +84-2854041168
phone:          +84-834554344
e-mail:         [email protected]
nic-hdl:        NBAD1-AP
mnt-by:         MAINT-VN-VNNIC
last-modified:  2022-09-20T06:31:10Z
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:          221.133.0.0/19
descr:          SPT-VN
origin:         AS7602
mnt-by:         MAINT-VN-SPT
last-modified:  2022-09-24T18:53:22Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 221.133.0.0/20

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

BGP prefixes that are contained by 221.133.0.0/20

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
221.133.12.0/22 AS7602 Core Network 1,024

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 167 domain names hosted across 44 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
221.133.9.25 pqc.com.vn 12
221.133.1.88 ipt.vn 11
221.133.7.120 yohofucoidan.vn 10
221.133.7.175 s-wifi.net.vn 4
221.133.9.140 thachthucmbh.com 3
221.133.1.37 hoaphuongdong.vn 3
221.133.9.82 pixelacademy.vn 2
221.133.7.14 spt.vn 2
221.133.9.73 baokiengiang.org.vn 1
221.133.7.21 tuvilyso.net 1
221.133.9.112 crystabaya.com 1
221.133.9.167 gap7chuyengia.com 1
221.133.9.55 haivannam.com 1
221.133.13.124 gvlab.org 1
221.133.9.76 t2s.edu.vn 1
221.133.7.121 internetphumyhung.com.vn 1
221.133.9.47 baobaclieu.com.vn 1
221.133.13.116 bktphcm.net 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
Read more

Pingable IPs

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

IP Address ASN Details
221.133.8.132 AS7602 Sai gon Postel Corporation 27.35ms from Singapore, SG
221.133.3.83 AS7602 Sai gon Postel Corporation 2.22ms from Ho Chi Minh City, VN
221.133.7.110 AS7602 Sai gon Postel Corporation 2.08ms from Ho Chi Minh City, VN
221.133.2.194 AS7602 Sai gon Postel Corporation 1.87ms from Ho Chi Minh City, VN
221.133.1.242 AS7602 Sai gon Postel Corporation 1.89ms from Ho Chi Minh City, VN
221.133.14.101 AS7602 Sai gon Postel Corporation 1.89ms from Ho Chi Minh City, VN
221.133.9.25 AS7602 Sai gon Postel Corporation 1.92ms from Ho Chi Minh City, VN
221.133.12.113 AS7602 Sai gon Postel Corporation 21.32ms from Hanoi, VN
221.133.4.204 AS7602 Sai gon Postel Corporation 27.17ms from Singapore, SG
221.133.0.2 AS7602 Sai gon Postel Corporation 1.96ms 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
67.186.147.244 AS7922 Comcast Cable Communications, LLC 6.54ms from Boston, US
98.63.137.36 AS7922 Comcast Cable Communications, LLC 5.34ms from Chicago, US
4.207.102.116 AS8075 Microsoft Corporation 0.19ms from Dublin, IE
88.217.252.212 AS8767 M-net Telekommunikations GmbH 5.47ms from Frankfurt am Main, DE
90.192.151.36 AS5607 Sky UK Limited 8.88ms from London, GB
203.214.83.244 AS7545 TPG Telecom Limited 1.58ms from Melbourne, AU
13.232.245.164 AS16509 Amazon.com, Inc. 0.15ms from Mumbai, IN
91.58.91.4 AS3320 Deutsche Telekom AG 3.78ms from Nuernberg, DE
87.150.245.132 AS3320 Deutsche Telekom AG 6.17ms from Nuernberg, DE
104.215.40.100 AS8075 Microsoft Corporation 0.25ms from Osaka, JP
78.197.185.244 AS12322 Free SAS 6.54ms from Paris, FR
18.209.55.52 AS14618 Amazon.com, Inc. 0.45ms from Reston, US
54.215.4.116 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
95.198.192.244 AS3301 Telia Company AB 6.85ms from Stockholm, SE
20.42.211.196 AS8075 Microsoft Corporation 0.68ms from Sydney, AU
167.100.87.100 AS29974 Wightman Telecom 2.25ms from Toronto, CA
212.15.188.84 AS12810 A1 Hrvatska d.o.o. 0.50ms from Zagreb, HR
145.107.87.100 AS1103 SURF B.V. 3.28ms from Amsterdam, NL
186.130.192.36 AS22927 Telefonica de Argentina 16.78ms from Buenos Aires, AR
18.252.62.212 AS8987 Amazon Data Services Ireland Ltd 0.78ms from Columbus, US
87.94.89.84 AS16086 DNA Oyj 6.46ms from Helsinki, FI
81.214.124.100 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.67ms from Istanbul, TR
76.217.44.52 AS7018 AT&T Enterprises, LLC 10.35ms from Kansas City, US
31.127.212.4 AS2856 British Telecommunications PLC 1.15ms from London, GB
67.8.90.244 AS33363 Charter Communications, Inc 5.25ms 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 -f2 221.133.1.2
traceroute to 221.133.1.2 (221.133.1.2): 64 hops max, 52 byte packets
4 [AS62000] 185.0.42.154 32.915 ms
5 *
6 *
8 *
9 [AS24088] 103.130.211.109 192.846 ms
10 [AS7602] 221.133.30.89 195.065 ms
11 [AS7602] 221.133.1.2 192.88 ms
Measurement taken from IPinfo ProbeNet in Olsztyn, PL
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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