AS1659 Taiwan Academic Network (TANet) Information Center

ERX-TANET-ASN1 - Taiwan Academic Network (TANet) Information Center · registered in Taiwan

IPv4 addresses5,495,808132 prefixes · 0.175% of announced IPv4

Rank in Taiwan#2largest network in TW by IPv4 space, of 237 · 16.55% of TW

Rank worldwide#90of 79,396 networks with IPv4

IPv665,024 x /487 prefixes

CountryTaiwan288 ASNs registered there

Open AS1659 in ASN lookup Look up an IP in this network (120.96.32.1) All networks in Taiwan

IPv4 prefixes

All 132 prefixes, in address order.

120.96.32.0/19
120.96.64.0/18
120.96.128.0/18
120.96.192.0/19
120.96.224.0/20
120.96.252.0/22
120.97.0.0/16
120.98.0.0/15
120.100.0.0/14
120.104.40.0/21
120.104.48.0/20
120.104.112.0/20
120.104.128.0/17
120.105.0.0/16
120.106.0.0/16
120.107.0.0/18
120.107.64.0/18
120.107.128.0/17
120.108.0.0/14
120.112.0.0/13
120.120.0.0/14
120.124.0.0/15
120.126.0.0/19
120.126.112.0/20
120.126.128.0/17
120.127.0.0/17
120.127.128.0/19
120.127.192.0/18
134.208.0.0/16
140.92.0.0/16
140.111.0.0/16
140.116.0.0/16
140.118.0.0/15
140.120.0.0/16
140.121.0.0/16
140.122.0.0/15
140.124.0.0/14
140.128.0.0/16
140.129.0.0/19
140.129.32.0/20
140.129.48.0/23
140.129.50.0/24
140.129.81.0/24
140.129.82.0/23
140.129.84.0/22
140.129.88.0/21
140.129.96.0/19
140.129.128.0/17
140.130.0.0/15
140.132.0.0/15
140.134.0.0/16
140.135.0.0/16
140.136.0.0/17
140.137.0.0/16
140.138.0.0/16
163.13.0.0/16
163.14.0.0/15
163.16.0.0/15
163.18.0.0/16
163.19.0.0/18
163.19.64.0/19
163.19.96.0/21
163.19.152.0/21
163.19.160.0/19
163.19.192.0/18
163.20.0.0/14
163.24.0.0/14
163.28.0.0/18
163.28.64.0/22
163.28.68.0/24
163.28.70.0/23
163.28.72.0/21
163.28.80.0/20
163.28.96.0/19
163.28.128.0/17
163.30.0.0/15
163.32.0.0/16
192.83.166.0/23
192.83.168.0/21
192.83.176.0/20
192.83.192.0/22
192.83.196.0/24
192.192.0.0/20
192.192.16.0/22
192.192.20.0/23
192.192.22.0/23
192.192.24.0/21
192.192.32.0/19
192.192.64.0/19
192.192.96.0/20
192.192.112.0/22
192.192.116.0/22
192.192.120.0/21
192.192.128.0/18
192.192.192.0/19
192.192.224.0/20
192.192.240.0/21
192.192.248.0/22
192.192.252.0/22
203.64.0.0/20
203.64.16.0/20
203.64.32.0/19
203.64.64.0/18
203.64.128.0/17
203.68.0.0/16
203.71.0.0/16
203.72.0.0/16
210.59.0.0/17
210.60.0.0/19
210.60.32.0/19
210.60.64.0/19
210.60.96.0/20
210.60.112.0/21
210.60.120.0/22
210.60.124.0/23
210.60.126.0/24
210.60.127.0/24
210.60.128.0/18
210.60.192.0/19
210.60.224.0/19
210.62.64.0/19
210.62.224.0/20
210.62.240.0/21
210.67.248.0/21
210.70.0.0/18
210.70.64.0/20
210.70.80.0/20
210.70.96.0/19
210.70.128.0/17
210.71.0.0/17
210.240.0.0/16
210.243.0.0/18

IPv6 prefixes

All 7 prefixes.

2001:288::/34
2001:288:4000::/39
2001:288:4400::/38
2001:288:4800::/37
2001:288:5000::/36
2001:288:6000::/35
2001:288:8000::/33

Similar-sized networks in Taiwan

ASNNameIPv4 addresses

AS3462#1 HINET - Data Communication Business Group12,223,487

AS9674#3 FET-TW - Far EastTone Telecommunication Co., Ltd.1,832,960

AS17421#4 EMOME-NET - Mobile Business Group1,655,808

AS4780#5 SEEDNET - Digital United Inc.1,618,176

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