Autonomous System

AS24164 UNION BROADBAND NETWORK

ISPActiveTaiwanAPNIC

AS24164 (UBBNET-AS-TW) is an ISP network operated by UNION BROADBAND NETWORK in Taiwan, registered with APNIC. It has 233 IPv4 prefixes with 950,272 addresses and 12 IPv6 prefixes, which makes it the 457th largest of 82,558 active autonomous systems by IPv4 space.

IPv4 addresses950,272in 233 prefixes
IPv6 prefixes12≈ 2.0 × 10²⁸ addresses
Size rank#457of 82,558 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationUNION BROADBAND NETWORK
AS nameUBBNET-AS-TW
Websitetaiwanmobile.com
Country Taiwan (TW)
Network typeISP
RegistryAPNIC
Abuse contactabuse@twmbroadband.net
Registered—
Last updated2025-11-06

IPv4 prefixes

233 prefixes · 950,272 addresses
NetworkAddressesFirst – last address
49.158.0.0/15131,07249.158.0.0 – 49.159.255.255
49.158.0.0/1665,53649.158.0.0 – 49.158.255.255
49.159.0.0/1665,53649.159.0.0 – 49.159.255.255
180.218.0.0/1665,536180.218.0.0 – 180.218.255.255
119.77.128.0/1732,768119.77.128.0 – 119.77.255.255
180.218.0.0/1732,768180.218.0.0 – 180.218.127.255
180.218.128.0/1732,768180.218.128.0 – 180.218.255.255
115.165.192.0/1816,384115.165.192.0 – 115.165.255.255
119.77.128.0/1816,384119.77.128.0 – 119.77.191.255
119.77.192.0/1816,384119.77.192.0 – 119.77.255.255
122.100.64.0/1816,384122.100.64.0 – 122.100.127.255
122.254.0.0/1816,384122.254.0.0 – 122.254.63.255
203.77.0.0/1816,384203.77.0.0 – 203.77.63.255
61.56.160.0/198,19261.56.160.0 – 61.56.191.255
61.64.0.0/198,19261.64.0.0 – 61.64.31.255
115.165.192.0/198,192115.165.192.0 – 115.165.223.255
115.165.224.0/198,192115.165.224.0 – 115.165.255.255
122.100.64.0/198,192122.100.64.0 – 122.100.95.255
122.100.96.0/198,192122.100.96.0 – 122.100.127.255
122.254.0.0/198,192122.254.0.0 – 122.254.31.255
122.254.32.0/198,192122.254.32.0 – 122.254.63.255
123.0.32.0/198,192123.0.32.0 – 123.0.63.255
124.6.0.0/198,192124.6.0.0 – 124.6.31.255
203.77.32.0/198,192203.77.32.0 – 203.77.63.255
211.76.32.0/198,192211.76.32.0 – 211.76.63.255
The 25 largest of 233. The API and the database have all of them.

IPv6 prefixes

12 prefixes
  • 2407:4b00:1000::/36
  • 2407:4b00:2000::/36
  • 2407:4b00:3000::/36
  • 2407:4b00:5000::/36
  • 2407:4b00:fd01::/48
  • 2407:4b00:fd02::/48
  • 2407:4b00:fd03::/48
  • 2407:4b00:fd05::/48
  • 2407:4b00:ff01::/48
  • 2407:4b00:ff02::/48
  • 2407:4b00:ff03::/48
  • 2407:4b00:ff05::/48

Query AS24164 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=AS24164&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS24164, with or without a key:

curl "https://api.ipapi.is/?q=49.158.0.1"

Other networks of UNION BROADBAND NETWORK

AS24163 UNION BROADBAND NETWORK64,768 IPv4 addressesAS24165 UNION BROADBAND NETWORK64,256 IPv4 addresses

Largest networks in Taiwan

AS3462 Chunghwa Telecom Co., Ltd.16,359,936 IPv4 addressesAS1659 This aut-num object created as part of6,653,696 IPv4 addressesAS4780 Digital United Inc.5,164,544 IPv4 addressesAS9924 Taiwan Fixed Network CO.,LTD.4,313,600 IPv4 addressesAS9919 New Century InfoComm Tech Co., Ltd.3,128,320 IPv4 addressesAS9674 Far EastTone Telecommunication Co., Ltd.2,298,368 IPv4 addresses