iamroot.tech
Toggle navigation
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
All tools
Page nav
Page nav
iamroot.tech
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
CTRL+D to bookmark
Add to homescreen
×
Tap the 'Share button' at the bottom of the screen:
Scroll down the list, and select 'Add to Home Screen':
Tap the menu icon (3 dots - upper right-hand corner):
and select 'Add to homescreen'.:
ASN database
You may find these sub-pages interesting as well:
Top ASN's by country
Directory of +1.200 verified looking glass url's
NEW: ASN database statistics
Related tools
DNS lookup
DNS lookup / nslookup / DIG of DNS records. An online tool for DNS lookups. By default recursive lookups querying the authoritative name servers. Lookups on specific DNS resolvers are also possible. Additionally, it will look up secondary records and output a full log of what was done on a technical level.
WHOIS / RDAP lookup
Perform WHOIS and/or RDAP lookups on domains, IP addresses, and ASNs. Will output all available technical info, contact info, etc.
Reverse DNS
Perform reverse DNS (rDNS/PTR) lookups of any IP.
CIDR calculator
beta
IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.
What is my IPv4 and IPv6?
Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.
GeoIP location
Online tool GeoIP location of any IP and/or domain.
World map, day/night + local time
beta
Beautiful day/night map of the world, with markup of all major cities including local date and time.
Result
AS38731, Vietel - CHT Compamy Ltd
Last update of data:
07-05-2024 12:19 UTC
ASN:
AS38731 (VTDC-AS-VN)
Country:
VN - Vietnam (Asia)
Org.:
Vietel - CHT Compamy Ltd
Stats:
Peers
72
IX'es
-
Prefixes
46
IPv4
+48K
IPv6
3,0E+28
Contact:
Vietel - CHT Compamy Ltd
Ha Noi, VietNam
VN
+84-24-35564944
History
Date
Peers
IX'es
Prefixes
IPv4
IPv6
Before 28-11-2023
75
-
47
48.128
3,5E+28
28-11-2023
+2
-
-
-
-
05-12-2023
+1
-
-
-
-
16-12-2023
-
-
-1
-2.048
-
25-12-2023
-1
-
-
-
-
15-01-2024
-3
-
-
-
-
22-01-2024
+1
-
-
-
-
05-02-2024
-
-
-1
-
-
12-02-2024
-
-
+10
+11.264
-
27-02-2024
-1
-
-
-
-
05-03-2024
-
-
+1
+2.048
-
12-03-2024
-1
-
-10
-11.264
-0,5E+28
19-03-2024
-
-
+9
+11.264
-
26-03-2024
-
-
-9
-11.264
-
09-04-2024
-1
-
-
-
-
Current
72
-
46
48.128
3,0E+28
- - show more (+10 entries) - -
- - show less (-10 entries) - -
Peers
Country
Relationship
ASN
Organization
Peers
Prefix'es
Australia
Downstream
AS38371
1
-
Hong Kong
Downstream
AS136907
HUAWEI INTERNATIONAL PTE. LTD.
320
337
Hong Kong
Downstream
AS138915
Kaopu Cloud HK Limited
279
469
United States
Downstream
AS21859
Zenlayer Inc
469
858
Vietnam
Upstream
AS24086
IRT-VN-AP
2
268
Vietnam
Downstream
AS63760
AZDIGI Corporation
3
5
Vietnam
Downstream
AS149137
TAN THANH AN INTERNATIONAL TRADE DEVELOPMENT COMPANY LIMITED
2
6
Vietnam
Downstream
AS45903
CMC Telecom Infrastructure Company
126
77
Vietnam
Downstream
AS7552
Viettel Group
147
25
Vietnam
Downstream
AS131353
NhanHoa Software company
4
22
Vietnam
Downstream
AS131367
Viet Online trading service corporation
2
2
Vietnam
Downstream
AS131376
KB Securities Vietnam Joint Stock Company
2
1
Vietnam
Downstream
AS131378
Cloud Viet Technology Company Limited
1
4
Vietnam
Downstream
AS131382
CFOX TECH COMPANY LIMITED
1
4
Vietnam
Downstream
AS131392
GMO-Z.com Runsystem Joint Stock Company
1
13
Vietnam
Downstream
AS131404
Masters Technology Corporation
1
1
Vietnam
Downstream
AS131418
Vietnam Esports Development Joint Stock Company
11
5
Vietnam
Downstream
AS131425
The gioi di dong jsc
2
4
Vietnam
Downstream
AS131426
MISA-VN
1
1
Vietnam
Downstream
AS131427
AOHOAVIET-VN
1
8
Vietnam
Downstream
AS131428
Rainbow E-Commerce Company Limited
1
18
Vietnam
Downstream
AS131435
Vietnam Esports and Entertainment Joint Stock Company
4
3
Vietnam
Downstream
AS131436
Information Technology Center - Vietnam Social Security
5
6
Vietnam
Downstream
AS135912
VNETWORK Joint Stock Company
3
4
Vietnam
Downstream
AS135915
8 Floor, 96-98 Dao Duy Anh, Phu Nhuan, HCMC
1
3
Vietnam
Downstream
AS135919
MB SHINSEI Finance Limited Liability Company
3
2
Vietnam
Downstream
AS135932
Viet Storage Technology Joint Stock Company
4
10
Vietnam
Downstream
AS135938
Home Credit Viet nam Finance Company Limited
2
2
Vietnam
Downstream
AS135942
Adsota Corporation
3
13
Vietnam
Downstream
AS135944
VinhNam Commercial informatics service corporation
4
18
Vietnam
Downstream
AS135947
Shopee Company Limited
3
3
Vietnam
Downstream
AS135951
Webico Company Limited
2
16
Vietnam
Downstream
AS135953
Vietnam Online Network Solution Joint Stock Compnay
2
5
Vietnam
Downstream
AS135958
Teko Vietnam Technology Joint Stock Company
1
4
Vietnam
Downstream
AS135959
Onebim Vietnam Limited Company
1
5
Vietnam
Downstream
AS135961
Viet Nam Data Online Joint Stock Company
1
1
Vietnam
Downstream
AS135986
Turbo Technology Solution Joint Stock Company
1
2
Vietnam
Downstream
AS135987
Reload Company Limited
2
11
Vietnam
Downstream
AS135988
Sun Group Corporation
2
1
Vietnam
Downstream
AS135994
IDC Online Technology and Solutions Corporation
1
2
Vietnam
Downstream
AS140742
Asia Soft Co., Ltd
2
2
Vietnam
Downstream
AS140787
LAM A ARCHITECTURE CONSTRUCTION COMPANY LIMITED
1
3
Vietnam
Downstream
AS140822
ANPHATIDC
1
20
Vietnam
Downstream
AS140830
IDS VIET NAM SOLUTION CORPORATION
1
1
Vietnam
Downstream
AS140831
Data Center of Vietnam National University Ho Chi Minh City
1
2
Vietnam
Downstream
AS149098
VIETNAM DIGITAL INFRASTRUCTURE JOINT STOCK COMPANY
1
1
Vietnam
Downstream
AS149109
GIAO HANG TIET KIEM JOINT STOCK COMPANY
2
1
Vietnam
Downstream
AS149117
VTC MOBILE SERVICES JOINT STOCK COMPANY
1
3
Vietnam
Downstream
AS149146
VNETKIWON SECURITY CO., LTD
1
1
Vietnam
Downstream
AS38251
VNDirect Securities Corporation
2
1
Vietnam
Downstream
AS38738
L.C.S Company.,ltd
6
6
Vietnam
Downstream
AS45551
HEINEKEN VIETNAM BREWERY LIMITED COMPANY
2
1
Vietnam
Downstream
AS55320
KNODE TECHNOLOGY COMPANY LIMITED
3
9
Vietnam
Downstream
AS56150
Viet Solutions Services Trading Company Limited
4
14
Vietnam
Downstream
AS56153
Digital Storage Company Limited
1
3
Vietnam
Downstream
AS56158
Digital world data online company
1
1
Vietnam
Downstream
AS63730
VNSO TECHNOLOGY COMPANY
2
3
Vietnam
Downstream
AS63735
Hoatoc company limited
1
4
Vietnam
Downstream
AS63740
TOCDOSOVN-VN
1
1
Vietnam
Downstream
AS63759
TaDu Joint Stock Company
1
1
Vietnam
Downstream
AS63765
HOSTVN Technology Solutions Joint Stock Company
2
15
Vietnam
Downstream
AS63766
VEGAGAME-VN
3
7
Vietnam
Downstream
AS150821
HD TECHNICAL INFRASTRUCTURE CONSTRUCTION COMPANY LIMITED
1
1
Vietnam
Downstream
AS140762
Vinh Railway Signalling - Telecom Joint Stock Company
2
2
Vietnam
Downstream
AS149147
GOFIBER SOFTWARE TECHNOLOGY COMPANY LIMITED
1
4
Vietnam
Downstream
AS140811
VIET NAM INTERACTIVE TELEVISION JOINT STOCK COMPANY
1
2
Vietnam
Downstream
AS150837
SAOVANG TELECOMMUNICATION INFRASTRUCTURE JOINT STOCK COMPANY
1
2
Vietnam
Downstream
AS151857
NIVA GROUP JONT STOCK COMPANY
1
2
Vietnam
Downstream
AS149145
VNETWORK TELECOMMUNICATION SERVICES COMPANY LIMITED
2
3
Vietnam
Downstream
AS150866
FINTECH VIETNAM CREDIT INFORMATION JOINT STOCK COMPANY
4
2
Vietnam
Downstream
AS151855
SOUTH TELECOMMUNICATIONS SOFTWARE JOINT STOCK COMPANY
2
3
Vietnam
Downstream
AS135924
FWD Vietnam Life Insurance Company Limited
2
1
- - show more (+61 entries) - -
- - show less (-61 entries) - -
Announced (uniq) prefixes
Country
ASN
Announced prefix
Description
Size
Vietnam
AS38731
27.71.224.0/22
Viettel Group
1.024
Vietnam
AS38731
27.71.228.0/22
Viettel Group
1.024
Vietnam
AS38731
45.117.160.0/23
Vietel - CHT Compamy Ltd
512
Vietnam
AS38731
45.117.162.0/23
Vietel - CHT Compamy Ltd
512
Vietnam
AS38731
103.1.208.0/22
Viettel-CHT Company Ltd
1.024
Vietnam
AS38731
103.109.32.0/22
Next Technology Investment and Development Company Limited
1.024
Vietnam
AS38731
115.84.176.0/22
Viettel - CHT Company Ltd
1.024
Vietnam
AS38731
115.84.180.0/22
Viettel - CHT Company Ltd
1.024
Vietnam
AS38731
116.97.184.0/22
Viettel Group
1.024
Vietnam
AS38731
116.97.188.0/22
Viettel Group
1.024
Vietnam
AS38731
116.103.104.0/22
Viettel Group
1.024
Vietnam
AS38731
116.103.108.0/22
Viettel Group
1.024
Vietnam
AS38731
116.111.176.0/21
Viettel Group
2.048
Vietnam
AS38731
117.1.148.0/22
Dai IP cho dich vu ADSL HNI
1.024
Vietnam
AS38731
125.212.192.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.196.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.200.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.204.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.224.0/21
Viettel Group
2.048
Vietnam
AS38731
125.212.232.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.236.0/22
Viettel Group
1.024
Vietnam
AS38731
125.212.240.0/20
Viettel Group
4.096
Vietnam
AS38731
171.244.0.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.4.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.8.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.12.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.48.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.52.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.56.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.60.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.128.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.132.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.192.0/22
Viettel Group
1.024
Vietnam
AS38731
171.244.196.0/22
Viettel Group
1.024
Vietnam
AS38731
203.113.172.0/23
Viettel Group
512
Vietnam
AS38731
203.113.174.0/23
Viettel Group
512
Vietnam
AS38731
210.211.96.0/21
Viettel - CHT Company Ltd
2.048
Vietnam
AS38731
210.211.104.0/21
Viettel - CHT Company Ltd
2.048
Vietnam
AS38731
210.211.112.0/21
Viettel - CHT Company Ltd
2.048
Vietnam
AS38731
210.211.120.0/22
Viettel - CHT Company Ltd
1.024
Vietnam
AS38731
210.211.124.0/22
Viettel - CHT Company Ltd
1.024
Country
ASN
Announced prefix
Description
Size
Vietnam
AS38731
2401:5f80::/36
Viettel-CHT Company Ltd
5,0E+27
Vietnam
AS38731
2401:5f80:1000::/36
Viettel-CHT Company Ltd
5,0E+27
Vietnam
AS38731
2401:5f80:2000::/35
Viettel-CHT Company Ltd
9,9E+27
Vietnam
AS38731
2401:5f80:4000::/36
Viettel-CHT Company Ltd
5,0E+27
Vietnam
AS38731
2401:5f80:5000::/36
Viettel-CHT Company Ltd
5,0E+27
- - show more (+35 entries) - -
- - show less (-35 entries) - -
Log
000
+000
Parse input (ASN)
000
+000
Search database for 'AS38731'
002
+002
1 ASN's found
003
+000
Done
003
+000
Load details of AS38731
027
+025
46 prefixes found
066
+038
72 peers found
068
+002
No matching IX connections found!
078
+010
15 historical items loaded
079
+000
Done