Autonomous System

AS45083 China UNICOM, Beijing Branch

ISPActiveChinaAPNIC

AS45083 (BGTELECOM) is an ISP network operated by China UNICOM, Beijing Branch in China, registered with APNIC. It has 52 IPv4 prefixes with 181,248 addresses, which makes it the 1,412th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses181,248in 52 prefixes
IPv6 prefixes0none
Size rank#1,412of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationChina UNICOM, Beijing Branch
AS nameBGTELECOM
Websitechinaunicom.com.cn
Country China (CN)
Network typeISP
RegistryAPNIC
Abuse contactshangyq1@chinaunicom.cn
Registered—
Last updated2025-11-27

IPv4 prefixes

52 prefixes · 181,248 addresses
NetworkAddressesFirst – last address
1.45.0.0/1665,5361.45.0.0 – 1.45.255.255
1.45.0.0/1732,7681.45.0.0 – 1.45.127.255
1.45.128.0/1732,7681.45.128.0 – 1.45.255.255
1.45.16.0/221,0241.45.16.0 – 1.45.19.255
1.45.20.0/221,0241.45.20.0 – 1.45.23.255
1.45.24.0/221,0241.45.24.0 – 1.45.27.255
1.45.28.0/221,0241.45.28.0 – 1.45.31.255
1.45.32.0/221,0241.45.32.0 – 1.45.35.255
1.45.36.0/221,0241.45.36.0 – 1.45.39.255
1.45.40.0/221,0241.45.40.0 – 1.45.43.255
1.45.44.0/221,0241.45.44.0 – 1.45.47.255
1.45.48.0/221,0241.45.48.0 – 1.45.51.255
1.45.52.0/221,0241.45.52.0 – 1.45.55.255
1.45.56.0/221,0241.45.56.0 – 1.45.59.255
1.45.60.0/221,0241.45.60.0 – 1.45.63.255
1.45.64.0/221,0241.45.64.0 – 1.45.67.255
1.45.68.0/221,0241.45.68.0 – 1.45.71.255
1.45.72.0/221,0241.45.72.0 – 1.45.75.255
1.45.76.0/221,0241.45.76.0 – 1.45.79.255
1.45.80.0/221,0241.45.80.0 – 1.45.83.255
1.45.84.0/221,0241.45.84.0 – 1.45.87.255
1.45.88.0/221,0241.45.88.0 – 1.45.91.255
1.45.92.0/221,0241.45.92.0 – 1.45.95.255
1.45.96.0/221,0241.45.96.0 – 1.45.99.255
1.45.100.0/221,0241.45.100.0 – 1.45.103.255
The 25 largest of 52. The API and the database have all of them.

IPv6 prefixes

No IPv6 prefixes.

Query AS45083 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS45083&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS45083, with or without a key:

curl "https://api.ipapi.is/?q=1.45.0.1"

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