| IC/BJT, Baijiatuan, Beijing, China | IC/ENH, Enshi, China |
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| IC/HIA, Hailar, Neimenggu Province, China | IC/KMI, Kunming, China |
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| IC/LSA, Lhasa, China | IC/MDJ, Mudanjiang, China |
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| IC/SSE, Shanghai, China | IC/QIZ, Qiongzhong, Guangduong Province, China |
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| IC/WMQ, Urumqi, China | IC/XAN, Xi'an, China |
| |
| IU/ADK, Aleutian Islands, Alaska, USA | IU/ANMO, Albuquerque, New Mexico, USA |
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| IU/ANTO, Ankara, Turkey | IU/BBSR, Bermuda |
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| IU/BILL, Bilibino, Russia | IU/CCM, Cathedral Cave, Missouri, USA |
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| IU/COLA, College Outpost, Alaska, USA | IU/COR, Corvallis, Oregon, USA |
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| IU/CTAO, Charters Towers, Australia | IU/DWPF,Disney Wilderness Preserve, Florida, USA |
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| IU/GNI, Garni, Armenia | IU/GUMO, Guam, Marianas Islands |
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| IU/HKT, Hockley, Texas, USA | IU/HRV, Harvard, Massachusetts, USA |
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| IU/INCN, Inchon, Republic of Korea | IU/KBS, Ny-Alesund, Spitzbergen, Norway |
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| IU/KIP, Kipapa, Hawaii, USA | IU/KMBO, Kilima Mbogo, Kenya |
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| IU/KONO, Kongsberg, Norway | IU/LSZ, Lusaka, Zambia |
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| IU/LVC, Limon Verde, Chile | IU/MA2, Magadan, Russia |
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| IU/MAJO, Matsushiro, Japan | IU/MBWA, Marble Bar, Western Australia |
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| IU/MIDW, Midway Island, Pacific Ocean, USA | IU/MSKU Masuku, Gabon |
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| IU/NWAO, Narrogin, Australia | IU/OTAV, Otavalo, Equador |
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| IU/PAYG Puerto Ayora, Galapagos Islands | IU/PET, Petropavlovsk, Russia |
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| IU/PMG, Port Moresby, New Guinea | IU/PMSA, Palmer Station, Antarctica |
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| IU/POHA, Pohakaloa, Hawaii | IU/PTCN, Pitcairn Island, South Pacific |
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| IU/PTGA, Pitinga, Brazil | IU/QSPA, South Pole, Antartica |
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| IU/RAR, Rarotonga, Cook Islands | IU/RCBR, Riachuelo, Brazil |
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| IU/RSSD, Black Hills, South Dakota, USA | IU/SAML, Samuel, Brazil |
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| IU/SBA, Scott Base, Antarctica | IU/SJG, San Juan, Puerto Rico |
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| IU/SNZO, South Karori, New Zealand | IU/SPA, South Pole, Antarctica |
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| IU/SSPA, Standing Stone, Pennsylvania USA | IU/TATO, Taipei, Taiwan |
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| IU/TIXI, Tiksi, Russia | IU/TRQA, Tornquist, Argentina |
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| IU/TSUM, Tsumeb, Namibia | IU/TUC, Tucson, Arizona |
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| IU/ULN, Ulaanbaatar, Mongolia | IU/WAKE, Wake Island, Pacific Ocean |
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| IU/WCI, Wyandotte Cave, Indiana, USA | IU/WVT, Waverly, Tennessee, USA |
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| IU/YAK, Yakutsk, Russia | IU/YSS, Yuzhno Sakhalinsk, Russia |
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