ResearchIRR · APNIC

AS7539:AS-TWAREN TaiWan Advanced Research and Education Network

An as-set registered in APNIC, maintained by MAINT-TW-TWNIC. It names 13 ASes and 1 set directly; followed all the way down, it reaches 14 ASes through 1 nested sets.

Members

What AS7539:AS-TWAREN lists

13 ASes and 1 set, written in the object across every registry that holds it. Sets open their own page.

AS18043:AS-HGGCAS1659 ERX-TANET-ASN1AS7539 TWAREN-TWAS9264 ASNetAS9916 NCTU-TWAS17711 NDHU-TWAS17716 NTU-TWAS17717 MOECC-IPV6AS18047 NTHU-TWAS18181 NHRINetAS18420 NCU-TWAS18422 ITRINET-AS-TWAS18426 STPI-AS-TWAS38254 ITLAB-AS-AP
Expanded

Every AS it reaches

What a filter built from AS7539:AS-TWAREN would let in: 14 ASes.

Show the 14 ASes
AS1659AS7539AS9264AS9916AS17711AS17716AS17717AS18043AS18047AS18181AS18420AS18422AS18426AS38254
Prefixes

What AS7539:AS-TWAREN covers

Every route object in the IRR whose origin is one of the 14 ASes it reaches: the prefixes a filter built from AS7539:AS-TWAREN (with bgpq4, say) would allow. 626 IPv4 and 20 IPv6. Every one is in the IRR API.

626 IPv4 prefixes
103.122.119.0/24103.124.72.0/22103.129.145.0/24103.130.252.0/22103.160.220.0/23103.167.250.0/23103.167.250.0/24103.167.251.0/24120.126.32.0/19120.126.64.0/19120.126.96.0/20120.127.160.0/19120.96.0.0/11134.208.0.0/16140.109.0.0/16140.110.0.0/15140.110.0.0/16140.110.200.0/21140.110.215.0/24140.112.0.0/12140.112.0.0/16140.113.0.0/16140.114.0.0/16140.115.0.0/16140.126.0.0/16140.128.0.0/13140.129.51.0/24140.129.52.0/22140.129.56.0/21140.129.64.0/20140.129.80.0/24140.136.0.0/15140.138.0.0/16140.92.0.0/16140.96.0.0/16140.96.0.0/17140.96.0.0/18140.96.0.0/20140.96.0.0/21140.96.0.0/22140.96.0.0/23140.96.0.0/24140.96.1.0/24140.96.10.0/23140.96.10.0/24140.96.100.0/22140.96.100.0/23140.96.100.0/24140.96.101.0/24140.96.102.0/23140.96.102.0/24140.96.103.0/24140.96.104.0/21140.96.104.0/22140.96.104.0/23140.96.104.0/24140.96.105.0/24140.96.106.0/23140.96.106.0/24140.96.107.0/24140.96.108.0/22140.96.108.0/23140.96.108.0/24140.96.109.0/24140.96.11.0/24140.96.110.0/23140.96.110.0/24140.96.111.0/24140.96.112.0/20140.96.112.0/21140.96.112.0/22140.96.112.0/23140.96.112.0/24140.96.113.0/24140.96.114.0/23140.96.114.0/24140.96.115.0/24140.96.116.0/22140.96.116.0/23140.96.116.0/24140.96.117.0/24140.96.118.0/23140.96.118.0/24140.96.119.0/24140.96.12.0/22140.96.12.0/23140.96.12.0/24140.96.120.0/21140.96.120.0/22140.96.120.0/23140.96.120.0/24140.96.121.0/24140.96.122.0/23140.96.122.0/24140.96.123.0/24140.96.124.0/22140.96.124.0/23140.96.124.0/24140.96.125.0/24140.96.126.0/23140.96.126.0/24140.96.127.0/24140.96.128.0/17140.96.128.0/18140.96.128.0/19140.96.128.0/20140.96.128.0/21140.96.128.0/22140.96.128.0/23140.96.128.0/24140.96.129.0/24140.96.13.0/24140.96.130.0/23140.96.130.0/24140.96.131.0/24140.96.132.0/22140.96.132.0/23140.96.132.0/24140.96.133.0/24140.96.134.0/23140.96.134.0/24140.96.135.0/24140.96.136.0/21140.96.136.0/22140.96.136.0/23140.96.136.0/24140.96.137.0/24140.96.138.0/23140.96.138.0/24140.96.139.0/24140.96.14.0/23140.96.14.0/24140.96.140.0/22140.96.140.0/23140.96.140.0/24140.96.141.0/24140.96.142.0/23140.96.142.0/24140.96.143.0/24140.96.144.0/20140.96.144.0/21140.96.144.0/22140.96.144.0/23140.96.144.0/24140.96.145.0/24140.96.146.0/23140.96.146.0/24140.96.147.0/24140.96.148.0/22140.96.148.0/23140.96.148.0/24140.96.149.0/24140.96.15.0/24140.96.150.0/23140.96.150.0/24140.96.151.0/24140.96.152.0/21140.96.152.0/22140.96.152.0/23140.96.152.0/24140.96.153.0/24140.96.154.0/23140.96.154.0/24140.96.155.0/24140.96.156.0/22140.96.156.0/23140.96.156.0/24140.96.157.0/24140.96.158.0/23140.96.158.0/24140.96.159.0/24140.96.16.0/20140.96.16.0/21140.96.16.0/22140.96.16.0/23140.96.16.0/24140.96.160.0/19140.96.160.0/20140.96.160.0/21140.96.160.0/22140.96.160.0/23140.96.160.0/24140.96.161.0/24140.96.162.0/23140.96.162.0/24140.96.163.0/24140.96.164.0/22140.96.164.0/23140.96.164.0/24140.96.165.0/24140.96.166.0/23140.96.166.0/24140.96.167.0/24140.96.168.0/21140.96.168.0/22140.96.168.0/23140.96.168.0/24140.96.169.0/24140.96.17.0/24140.96.170.0/23140.96.170.0/24140.96.171.0/24140.96.172.0/22140.96.172.0/23140.96.172.0/24140.96.173.0/24140.96.174.0/23140.96.174.0/24140.96.175.0/24140.96.176.0/20140.96.176.0/21140.96.176.0/22140.96.176.0/23140.96.176.0/24140.96.177.0/24140.96.178.0/23140.96.178.0/24140.96.179.0/24140.96.18.0/23140.96.18.0/24140.96.180.0/22140.96.180.0/23140.96.180.0/24140.96.181.0/24140.96.182.0/23140.96.182.0/24140.96.183.0/24140.96.184.0/21140.96.184.0/22140.96.184.0/23140.96.184.0/24140.96.185.0/24140.96.186.0/23140.96.186.0/24140.96.187.0/24140.96.188.0/22140.96.188.0/23140.96.188.0/24140.96.189.0/24140.96.19.0/24140.96.190.0/23140.96.190.0/24140.96.191.0/24140.96.192.0/18140.96.192.0/19140.96.192.0/20140.96.192.0/21140.96.192.0/22140.96.192.0/23140.96.192.0/24140.96.193.0/24140.96.194.0/23140.96.194.0/24140.96.195.0/24140.96.196.0/22140.96.196.0/23140.96.196.0/24140.96.197.0/24140.96.198.0/23140.96.198.0/24140.96.199.0/24140.96.2.0/23140.96.2.0/24140.96.20.0/22140.96.20.0/23140.96.20.0/24140.96.200.0/21140.96.200.0/22140.96.200.0/23140.96.200.0/24140.96.201.0/24140.96.202.0/23140.96.202.0/24140.96.203.0/24140.96.204.0/22140.96.204.0/23140.96.204.0/24140.96.205.0/24140.96.206.0/23140.96.206.0/24140.96.207.0/24140.96.208.0/20140.96.208.0/21140.96.208.0/22140.96.208.0/23140.96.208.0/24140.96.209.0/24140.96.21.0/24140.96.210.0/23140.96.210.0/24140.96.211.0/24140.96.212.0/22140.96.212.0/23140.96.212.0/24140.96.213.0/24140.96.214.0/23140.96.214.0/24140.96.215.0/24140.96.216.0/21140.96.216.0/22140.96.216.0/23140.96.216.0/24140.96.217.0/24140.96.218.0/23140.96.218.0/24140.96.219.0/24140.96.22.0/23140.96.22.0/24140.96.220.0/22140.96.220.0/23140.96.220.0/24140.96.221.0/24140.96.222.0/23140.96.222.0/24140.96.223.0/24140.96.224.0/19140.96.224.0/20140.96.224.0/21140.96.224.0/22140.96.224.0/23140.96.224.0/24140.96.225.0/24140.96.226.0/23140.96.226.0/24140.96.227.0/24140.96.228.0/22140.96.228.0/23140.96.228.0/24140.96.229.0/24140.96.23.0/24140.96.230.0/23140.96.230.0/24140.96.231.0/24140.96.232.0/21140.96.232.0/22140.96.232.0/23140.96.232.0/24140.96.233.0/24140.96.234.0/23140.96.234.0/24140.96.235.0/24140.96.236.0/22140.96.236.0/23140.96.236.0/24140.96.237.0/24140.96.238.0/23140.96.238.0/24140.96.239.0/24140.96.24.0/21140.96.24.0/22140.96.24.0/23140.96.24.0/24140.96.240.0/20140.96.240.0/21140.96.240.0/22140.96.240.0/23140.96.240.0/24140.96.241.0/24140.96.242.0/23140.96.242.0/24140.96.243.0/24140.96.244.0/22140.96.244.0/23140.96.244.0/24140.96.245.0/24140.96.246.0/23140.96.246.0/24140.96.247.0/24140.96.248.0/21140.96.248.0/22140.96.248.0/23140.96.248.0/24140.96.249.0/24140.96.25.0/24140.96.250.0/23140.96.250.0/24140.96.251.0/24140.96.252.0/22140.96.252.0/23140.96.252.0/24140.96.253.0/24140.96.254.0/23140.96.254.0/24140.96.255.0/24140.96.26.0/23140.96.26.0/24140.96.27.0/24140.96.28.0/22140.96.28.0/23140.96.28.0/24140.96.29.0/24140.96.3.0/24140.96.30.0/23140.96.30.0/24140.96.31.0/24140.96.32.0/19140.96.32.0/20140.96.32.0/21140.96.32.0/22140.96.32.0/23140.96.32.0/24140.96.33.0/24140.96.34.0/23140.96.34.0/24140.96.35.0/24140.96.36.0/22140.96.36.0/23140.96.36.0/24140.96.37.0/24140.96.38.0/23140.96.38.0/24140.96.39.0/24140.96.4.0/22140.96.4.0/23140.96.4.0/24140.96.40.0/21140.96.40.0/22140.96.40.0/23140.96.40.0/24140.96.41.0/24140.96.42.0/23140.96.42.0/24140.96.43.0/24140.96.44.0/22140.96.44.0/23140.96.44.0/24140.96.45.0/24140.96.46.0/23140.96.46.0/24140.96.47.0/24140.96.48.0/20140.96.48.0/21140.96.48.0/22140.96.48.0/23140.96.48.0/24140.96.49.0/24140.96.5.0/24140.96.50.0/23140.96.50.0/24140.96.51.0/24140.96.52.0/22140.96.52.0/23140.96.52.0/24140.96.53.0/24140.96.54.0/23140.96.54.0/24140.96.55.0/24140.96.56.0/21140.96.56.0/22140.96.56.0/23140.96.56.0/24140.96.57.0/24140.96.58.0/23140.96.58.0/24140.96.59.0/24140.96.6.0/23140.96.6.0/24140.96.60.0/22140.96.60.0/23140.96.60.0/24140.96.61.0/24140.96.62.0/23140.96.62.0/24140.96.63.0/24140.96.64.0/18140.96.64.0/19140.96.64.0/20140.96.64.0/21140.96.64.0/22140.96.64.0/23140.96.64.0/24140.96.65.0/24140.96.66.0/23140.96.66.0/24140.96.67.0/24140.96.68.0/22140.96.68.0/23140.96.68.0/24140.96.69.0/24140.96.7.0/24140.96.70.0/23140.96.70.0/24140.96.71.0/24140.96.72.0/21140.96.72.0/22140.96.72.0/23140.96.72.0/24140.96.73.0/24140.96.74.0/23140.96.74.0/24140.96.75.0/24140.96.76.0/22140.96.76.0/23140.96.76.0/24140.96.77.0/24140.96.78.0/23140.96.78.0/24140.96.79.0/24140.96.8.0/21140.96.8.0/22140.96.8.0/23140.96.8.0/24140.96.80.0/20140.96.80.0/21140.96.80.0/22140.96.80.0/23140.96.80.0/24140.96.81.0/24140.96.82.0/23140.96.82.0/24140.96.83.0/24140.96.84.0/22140.96.84.0/23140.96.84.0/24140.96.85.0/24140.96.86.0/23140.96.86.0/24140.96.87.0/24140.96.88.0/21140.96.88.0/22140.96.88.0/23140.96.88.0/24140.96.89.0/24140.96.9.0/24140.96.90.0/23140.96.90.0/24140.96.91.0/24140.96.92.0/22140.96.92.0/23140.96.92.0/24140.96.93.0/24140.96.94.0/23140.96.94.0/24140.96.95.0/24140.96.96.0/19140.96.96.0/20140.96.96.0/21140.96.96.0/22140.96.96.0/23140.96.96.0/24140.96.97.0/24140.96.98.0/23140.96.98.0/24140.96.99.0/24144.79.66.0/23144.79.66.0/24144.79.67.0/24163.13.0.0/16163.14.0.0/15163.16.0.0/13163.19.0.0/16163.24.0.0/14163.28.0.0/16163.28.16.0/20163.30.0.0/15163.32.0.0/16192.192.0.0/16192.83.166.0/23192.83.168.0/21192.83.176.0/20192.83.192.0/22192.83.196.0/24202.169.160.0/20202.169.174.0/23203.145.192.0/21203.145.200.0/21203.145.208.0/20203.64.0.0/16203.68.0.0/16203.71.0.0/16203.72.0.0/16203.72.127.0/24203.72.128.0/24203.72.129.0/24210.240.0.0/16210.243.0.0/18210.59.0.0/17210.59.0.0/24210.59.52.0/24210.60.0.0/16210.60.221.0/24210.60.222.0/24210.60.223.0/24210.62.224.0/20210.62.240.0/21210.62.64.0/19210.67.248.0/21210.70.0.0/16210.71.0.0/17211.73.64.0/19211.76.160.0/20211.76.160.0/21211.76.168.0/21211.79.48.0/2044.31.69.0/2461.61.240.0/2061.61.240.0/2161.61.240.0/2261.61.240.0/2361.61.240.0/2461.61.241.0/2461.61.242.0/2361.61.242.0/2461.61.243.0/2461.61.244.0/2261.61.244.0/2361.61.244.0/2461.61.245.0/2461.61.246.0/2361.61.246.0/2461.61.247.0/2461.61.248.0/2161.61.248.0/2261.61.248.0/2361.61.248.0/2461.61.249.0/2461.61.250.0/2361.61.250.0/2461.61.251.0/2461.61.252.0/2261.61.252.0/2361.61.252.0/2461.61.253.0/2461.61.254.0/2361.61.254.0/2461.61.255.0/24
20 IPv6 prefixes
2001:288::/322001:288:e001::/482001:288:e002::/482001:4500:1000::/402001:470:25e::/482001:470:3fd::/482001:470:e9::/482001:c08::/322001:df6:c480::/482001:e10::/322001:ed8:8000::/332001:ed8::/322001:ed8::/332001:f18::/322402:3ce0::/322403:7f40:e000::/362403:7f40:e000::/482403:7f40:e001::/482403:c240::/322404:c140:956e::/48
Registries

Each registry’s copy

APNIC14 membersTaiWan Advanced Research and Education Network
Maintained byMAINT-TW-TWNIC
Last modified2026-01-07T09:53:28Z
MembersAS1659 AS7539 AS9264 AS9916 AS17711 AS17716 AS17717 AS18047 AS18181 AS18420 AS18422 AS18426 AS38254 AS18043:AS-HGGC
mbrs-by-refN
Used by

Sets that include AS7539:AS-TWAREN

AS293:AS-FROM-STARLIGHT-TO-ESNETAS9681:AS-FOX
Tools

Check AS7539:AS-TWAREN live

IRR API, with prefixes