AS18422 Industrial Technology Research Institute

ITRINET-AS-TW - Industrial Technology Research Institute · registered in Taiwan

IPv4 addresses69,63213 prefixes · 0.002% of announced IPv4

Rank in Taiwan#32largest network in TW by IPv4 space, of 237 · 0.21% of TW

Rank worldwide#2,448of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryTaiwan288 ASNs registered there

Open AS18422 in ASN lookup Look up an IP in this network (61.61.240.1) All networks in Taiwan

IPv4 prefixes

All 13 prefixes, in address order.

61.61.240.0/23
61.61.242.0/24
61.61.243.0/24
61.61.244.0/24
61.61.245.0/24
61.61.246.0/23
61.61.248.0/21
140.96.0.0/17
140.96.128.0/19
140.96.160.0/20
140.96.176.0/21
140.96.184.0/21
140.96.192.0/18

IPv6 prefixes

All 1 prefix.

2001:ed8::/32

Similar-sized networks in Taiwan

ASNNameIPv4 addresses

AS17716#29 NTU-TW - National Taiwan University76,800

AS18047#30 NTHU-TW - National Tsing-Hua University73,728

AS9264#31 ASNet - Academia Sinica71,424

AS7535#33 TISNET - TISNET Technology Inc.65,536

AS17713#34 NSYSU-TW - Ministry of Education Computer Center65,536

AS18420#35 NCU-TW - National Central University65,536

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources