TWAREN has five core nodes and 12 regional network centers (a.k.a. GigaPOPs.). It's five core nodes are located respectively as below：
Academia Sinica (SINICA)
The Taipei Node: National Academy for Educational Research (NAER)
The Hisnchu Node: Hsinchu Headquarter, NCHC
The Taichung Node: Central Business Unit, NCHC
The Tainan Node: Southern Business Unit, NCHC

TWAREN's 12 GigaPOPs are located at national universities as listing below：
National Taiwan University (NTU)
National Central University (NCU)
National Chiao Tung University (NCTU)
National Tsing Hua University (NTHU)
National Chung Hsing University (NCHU)
National Chi Nan University (NCNU)
National Chung Cheng University (CCU)
National Cheng Kung University (NCKU)
National Sun Yat-sen University (NSYSU)
National Dong Hwa University (NDHU)
National Ilan University (NIU)
National Chengchi University (NCCU)