Autonomous System
AS18422 ITRINET AS TW
BusinessActiveTaiwanAPNIC
AS18422 (ITRINET-AS-TW) is a business network operated by ITRINET AS TW in Taiwan, registered with APNIC. It has 21 IPv4 prefixes with 229,376 addresses and 3 IPv6 prefixes, which makes it the 1,158th largest of 82,558 active autonomous systems by IPv4 space.
IPv4 addresses229,376in 21 prefixes
IPv6 prefixes3≈ 1.6 × 10²⁹ addresses
Size rank#1,158of 82,558 active ASNs
Details
OrganizationITRINET AS TW
AS nameITRINET-AS-TW
Websiteitri.org.tw
Country Taiwan (TW)
Network typeBusiness
RegistryAPNIC
Abuse contactjesselin@itri.org.tw
Registered—
Last updated2025-11-06
IPv4 prefixes
21 prefixes · 229,376 addresses| Network | Addresses | First – last address |
|---|---|---|
| 140.96.0.0/16 | 65,536 | 140.96.0.0 – 140.96.255.255 |
| 140.96.0.0/17 | 32,768 | 140.96.0.0 – 140.96.127.255 |
| 140.96.128.0/17 | 32,768 | 140.96.128.0 – 140.96.255.255 |
| 140.96.0.0/18 | 16,384 | 140.96.0.0 – 140.96.63.255 |
| 140.96.64.0/18 | 16,384 | 140.96.64.0 – 140.96.127.255 |
| 140.96.128.0/18 | 16,384 | 140.96.128.0 – 140.96.191.255 |
| 140.96.192.0/18 | 16,384 | 140.96.192.0 – 140.96.255.255 |
| 140.96.0.0/19 | 8,192 | 140.96.0.0 – 140.96.31.255 |
| 140.96.32.0/19 | 8,192 | 140.96.32.0 – 140.96.63.255 |
| 61.61.240.0/20 | 4,096 | 61.61.240.0 – 61.61.255.255 |
| 61.61.240.0/21 | 2,048 | 61.61.240.0 – 61.61.247.255 |
| 61.61.248.0/21 | 2,048 | 61.61.248.0 – 61.61.255.255 |
| 140.96.176.0/21 | 2,048 | 140.96.176.0 – 140.96.183.255 |
| 61.61.240.0/22 | 1,024 | 61.61.240.0 – 61.61.243.255 |
| 61.61.244.0/22 | 1,024 | 61.61.244.0 – 61.61.247.255 |
| 61.61.248.0/22 | 1,024 | 61.61.248.0 – 61.61.251.255 |
| 61.61.252.0/22 | 1,024 | 61.61.252.0 – 61.61.255.255 |
| 140.96.172.0/22 | 1,024 | 140.96.172.0 – 140.96.175.255 |
| 140.96.170.0/23 | 512 | 140.96.170.0 – 140.96.171.255 |
| 61.61.242.0/24 | 256 | 61.61.242.0 – 61.61.242.255 |
| 61.61.244.0/24 | 256 | 61.61.244.0 – 61.61.244.255 |
140.96.0.0/16 140.96.0.0/17 140.96.128.0/17 140.96.0.0/18 140.96.64.0/18 140.96.128.0/18 140.96.192.0/18 140.96.0.0/19 140.96.32.0/19 61.61.240.0/20 61.61.240.0/21 61.61.248.0/21 140.96.176.0/21 61.61.240.0/22 61.61.244.0/22 61.61.248.0/22 61.61.252.0/22 140.96.172.0/22 140.96.170.0/23 61.61.242.0/24 61.61.244.0/24
IPv6 prefixes
3 prefixes- 2001:ed8::/32
- 2001:ed8::/33
- 2001:ed8:8000::/33
2001:ed8::/32 2001:ed8::/33 2001:ed8:8000::/33
Query AS18422 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=AS18422&key=YOUR_API_KEY"Any address in its prefixes resolves to AS18422, with or without a key:
curl "https://api.ipapi.is/?q=140.96.0.1"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