27.66.66.0/23

AS7552 · Viettel Group

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Summary

Country	Vietnam
Domain	viettel.com.vn
ASN	AS7552
Parent Range	27.64.0.0/12
Registry	APNIC
ID	VIETTEL-VN

WHOIS Details

inetnum:        27.64.0.0 - 27.79.255.255
netname:        VIETTEL-VN
descr:          Viettel Group
descr:          No 1, Tran Huu Duc street, My Dinh 2 ward, Nam Tu Liem district, Ha Noi City
country:        VN
admin-c:        TVT8-AP
tech-c:         NDT9-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-VN-VNNIC
mnt-irt:        IRT-VNNIC-AP
last-modified:  2017-11-11T09:36:50Z
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 Dang Tiep
address:        Viettel Network Corporation
address:        No 1, Tran Huu Duc street, My Dinh 2 ward, Nam Tu Liem district, Ha Noi City
country:        VN
phone:          +84-24-62989898
e-mail:         soc@viettel.com.vn
nic-hdl:        NDT9-AP
mnt-by:         MAINT-VN-VIETEL
last-modified:  2017-11-11T09:40:35Z
source:         APNIC

person:         Tran Van Thanh
address:        Viettel Network Corporation
address:        No 1, Tran Huu Duc street, My Dinh 2 ward, Nam Tu Liem district, Ha Noi City
country:        VN
phone:          +84-24-62989898
e-mail:         soc@viettel.com.vn
nic-hdl:        TVT8-AP
mnt-by:         MAINT-VN-VIETEL
last-modified:  2018-08-21T09:57:13Z
source:         APNIC

route:          27.64.0.0/12
descr:          VIETTEL-VN
origin:         AS24086
mnt-by:         MAINT-VN-VNNIC
last-modified:  2025-08-14T17:15:01Z
source:         APNIC

route:          27.64.0.0/12
descr:          VIETTEL-VN
origin:         AS38731
mnt-by:         MAINT-VN-VNNIC
last-modified:  2025-08-14T17:15:06Z
source:         APNIC

route:          27.64.0.0/12
descr:          VIETTEL-VN
origin:         AS7552
mnt-by:         MAINT-VN-VNNIC
last-modified:  2025-08-14T17:14:56Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 27.66.66.0/23

Range	ASN	Company	Num of IPs
27.64.0.0/12	AS38731	Viettel Group	1,048,576
27.64.0.0/12	AS7552	Viettel Group	1,048,576

Nearby Ranges

BGP prefixes that overlap with 27.66.0.0/16

Range	ASN	Company	Num of IPs
27.64.0.0/12	AS38731	Viettel Group	1,048,576
27.64.0.0/12	AS7552	Viettel Group	1,048,576

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
27.66.67.240	congnt24.com	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

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

IP Address	ASN	Details
27.66.67.211	AS7552 Viettel Group	`1.38ms` from Hanoi, VN
27.66.66.15	AS7552 Viettel Group	`1.59ms` 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
4.231.75.247	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL
76.119.155.247	AS7922 Comcast Cable Communications, LLC	`8.49ms` from Boston, US
73.89.147.23	AS7922 Comcast Cable Communications, LLC	`7.47ms` from Boston, US
90.64.208.135	AS15962 Orange Slovensko a.s.	`9.38ms` from Bratislava, SK
139.124.147.7	AS2457 Renater	`2.04ms` from Marseille, FR
73.205.255.199	AS7922 Comcast Cable Communications, LLC	`8.89ms` from Miami, US
73.90.203.151	AS7922 Comcast Cable Communications, LLC	`10.76ms` from Santa Clara, US
222.98.10.87	AS4766 Korea Telecom	`1.87ms` from Seoul, KR
84.46.180.247	AS136787 PacketHub S.A.	`0.08ms` from Sydney, AU
60.127.43.87	AS17676 SoftBank Corp.	`2.70ms` from Tokyo, JP
88.159.241.199	AS1136 KPN B.V.	`1.27ms` from Amsterdam, NL
52.3.20.167	AS14618 Amazon.com, Inc.	`0.56ms` from Ashburn, US
200.192.238.87	AS263248 GCI SERVICE PROVIDER S.A.	`0.97ms` from Curridabat, CR
156.247.93.231	AS9294 GNET INC.	`0.83ms` from Hong Kong, HK
193.233.95.231	AS56690 VNET LLC	`1.39ms` from Moscow, RU
151.73.52.71	AS1267 WIND TRE S.P.A.	`7.77ms` from Rome, IT
98.56.234.39	AS7922 Comcast Cable Communications, LLC	`9.87ms` from San Jose, US
83.219.218.7	AS29518 Bredband2 AB	`0.56ms` from Stockholm, SE
124.142.102.119	AS9824 JCOM Co., Ltd.	`13.60ms` from Tokyo, JP
117.158.110.7	AS24445 Henan Mobile Communications Co.,Ltd	`3.42ms` from Zhengzhou, CN
34.237.116.55	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
52.255.196.39	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
125.35.122.135	AS4808 China Unicom Beijing Province Network	`3.02ms` from Beijing, CN
54.149.88.71	AS16509 Amazon.com, Inc.	`0.22ms` from Boardman, US
188.6.28.135	AS5483 Magyar Telekom Plc.	`4.33ms` from Budapest, HU

Traceroute

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

traceroute -a -n -q1 -f5 27.66.66.89

traceroute to 27.66.66.89 (27.66.66.89): 64 hops max, 52 byte packets

5 [AS7552] 171.225.223.227 0.775 ms

6 *

7 [AS7552] 27.68.194.94 1.374 ms

8 [AS7552] 116.104.81.189 0.38 ms

9 [AS7552] 27.66.66.89 4.636 ms

Measurement taken from

IPinfo ProbeNet in Hanoi, VN

On March 20th 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.

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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