Autonomous System

AS4837 CHINA UNICOM China169 Backbone

ISPActiveChinaAPNIC

AS4837 (CHINA169-Backbone) is an ISP network operated by CHINA UNICOM China169 Backbone in China, registered with APNIC. It has 1,489 IPv4 prefixes with 59,316,736 addresses and 648 IPv6 prefixes, which makes it the 9th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses59,316,736in 1,489 prefixes
IPv6 prefixes648≈ 3.2 × 10³¹ addresses
Size rank#9of 82,200 active ASNs
Abuser scoreLow0.2% of its addresses flagged · method

Details

OrganizationCHINA UNICOM China169 Backbone
AS nameCHINA169-Backbone
Websitechinaunicom.cn
Country China (CN)
Network typeISP
RegistryAPNIC
Abuse contactzhaoyz3@chinaunicom.cn
Registered—
Last updated2024-02-06

IPv4 prefixes

1,489 prefixes · 59,316,736 addresses
NetworkAddressesFirst – last address
27.192.0.0/112,097,15227.192.0.0 – 27.223.255.255
39.64.0.0/112,097,15239.64.0.0 – 39.95.255.255
112.224.0.0/112,097,152112.224.0.0 – 112.255.255.255
42.224.0.0/121,048,57642.224.0.0 – 42.239.255.255
101.16.0.0/121,048,576101.16.0.0 – 101.31.255.255
110.240.0.0/121,048,576110.240.0.0 – 110.255.255.255
113.224.0.0/121,048,576113.224.0.0 – 113.239.255.255
115.48.0.0/121,048,576115.48.0.0 – 115.63.255.255
119.176.0.0/121,048,576119.176.0.0 – 119.191.255.255
120.0.0.0/121,048,576120.0.0.0 – 120.15.255.255
175.160.0.0/121,048,576175.160.0.0 – 175.175.255.255
182.112.0.0/121,048,576182.112.0.0 – 182.127.255.255
1.24.0.0/13524,2881.24.0.0 – 1.31.255.255
1.56.0.0/13524,2881.56.0.0 – 1.63.255.255
27.8.0.0/13524,28827.8.0.0 – 27.15.255.255
42.176.0.0/13524,28842.176.0.0 – 42.183.255.255
60.0.0.0/13524,28860.0.0.0 – 60.7.255.255
60.16.0.0/13524,28860.16.0.0 – 60.23.255.255
60.208.0.0/13524,28860.208.0.0 – 60.215.255.255
101.64.0.0/13524,288101.64.0.0 – 101.71.255.255
111.160.0.0/13524,288111.160.0.0 – 111.167.255.255
112.80.0.0/13524,288112.80.0.0 – 112.87.255.255
113.0.0.0/13524,288113.0.0.0 – 113.7.255.255
117.8.0.0/13524,288117.8.0.0 – 117.15.255.255
118.72.0.0/13524,288118.72.0.0 – 118.79.255.255
The 25 largest of 1,489. The API and the database have all of them.

IPv6 prefixes

648 prefixes
  • 2408:8244::/30
  • 2408:8344::/30
  • 2408:8444::/30
  • 2408:8644::/30
  • 2408:8744::/30
  • 2408:802c::/32
  • 2408:803e::/32
  • 2408:8056::/32
  • 2408:8210::/32
  • 2408:8211::/32
  • 2408:8212::/32
  • 2408:8213::/32
  • 2408:8214::/32
  • 2408:8215::/32
  • 2408:821a::/32
  • 2408:821b::/32
  • 2408:8220::/32
  • 2408:8221::/32
  • 2408:8226::/32
  • 2408:822a::/32
  • 2408:822b::/32
  • 2408:822e::/32
  • 2408:822f::/32
  • 2408:8230::/32
  • 2408:8231::/32
The 25 largest of 648. The API and the database have all of them.

Query AS4837 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=AS4837&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS4837, with or without a key:

curl "https://api.ipapi.is/?q=27.192.0.1"

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