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AS1659

AS1659 is Taiwan Academic Network (TANet) Information Center.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (4 Nov 2026)

Short answer

AS1659 belongs to Taiwan Academic Network (TANet) Information Center. DB-IP Lite attributes 5,495,552 IPv4 addresses in 31 ranges and 1 IPv6 ranges to it, all or nearly all of the IPv4 space in Taiwan. The number is registered with APNIC in Taiwan on 1 Aug 2002.

Facts for AS1659
Operator (DB-IP)Taiwan Academic Network (TANet) Information Center
IPv4 addresses5,495,552
IPv4 ranges31
IPv6 ranges1
RegistryAPNIC
Registered1 Aug 2002
Registry countryTaiwan (TW)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

Taiwan Academic Network (TANet) Information Center hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 1 IPv6 ranges for AS1659, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

TW100%
CL0.00%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
120.96.32.0 – 120.96.239.255120.96.32.0/19, 120.96.64.0/18 …53,248
120.96.252.0 – 120.103.255.255120.96.252.0/22, 120.97.0.0/16 …459,776
120.104.40.0 – 120.104.63.255120.104.40.0/21, 120.104.48.0/206,144
120.104.112.0 – 120.126.31.255120.104.112.0/20, 120.104.128.0/17 …1,421,312
120.126.112.0 – 120.127.159.255120.126.112.0/20, 120.126.128.0/17 …77,824
120.127.192.0 – 120.127.255.255120.127.192.0/1816,384
134.208.0.0 – 134.208.255.255134.208.0.0/1665,536
140.92.0.0 – 140.92.255.255140.92.0.0/1665,536
140.111.0.0 – 140.111.255.255140.111.0.0/1665,536
140.116.0.0 – 140.116.255.255140.116.0.0/1665,536
140.118.0.0 – 140.129.50.255140.118.0.0/15, 140.120.0.0/13 …733,952
140.129.81.0 – 140.136.127.255140.129.81.0/24, 140.129.82.0/23 …470,784
140.137.0.0 – 140.138.255.255140.137.0.0/16, 140.138.0.0/16131,072
163.13.0.0 – 163.19.103.255163.13.0.0/16, 163.14.0.0/15 …419,840
163.19.152.0 – 163.28.68.255163.19.152.0/21, 163.19.160.0/19 …568,576
163.28.70.0 – 163.28.255.255163.28.70.0/23, 163.28.72.0/21 …47,616
163.30.0.0 – 163.32.255.255163.30.0.0/15, 163.32.0.0/16196,608
192.83.166.0 – 192.83.196.255192.83.166.0/23, 192.83.168.0/21 …7,936
192.192.0.0 – 192.192.255.255192.192.0.0/1665,536
203.64.0.0 – 203.64.255.255203.64.0.0/1665,536
203.68.0.0 – 203.68.255.255203.68.0.0/1665,536
203.71.0.0 – 203.72.255.255203.71.0.0/16, 203.72.0.0/16131,072
210.59.0.0 – 210.59.127.255210.59.0.0/1732,768
210.60.0.0 – 210.60.255.255210.60.0.0/1665,536
210.62.64.0 – 210.62.95.255210.62.64.0/198,192
210.62.224.0 – 210.62.247.255210.62.224.0/20, 210.62.240.0/216,144
210.67.248.0 – 210.67.255.255210.67.248.0/212,048
210.70.0.0 – 210.70.254.255210.70.0.0/17, 210.70.128.0/18 …65,280
210.71.0.0 – 210.71.127.255210.71.0.0/1732,768
210.240.0.0 – 210.240.255.255210.240.0.0/1665,536
210.243.0.0 – 210.243.63.255210.243.0.0/1816,384
2001:288:: – 2001:288:ffff:ffff:ffff:ffff:ffff:ffff2001:288::/32IPv6
Showing 31 of 31 IPv4 and 1 of 1 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 5 Nov 2026