This is a list of radio telescopes – over one hundred – that are or have been used for radio astronomy. The list includes both single dishes and interferometric arrays. The list is sorted by region, then by name; unnamed telescopes are in reverse size order at the end of the list.

The first radio telescope was invented in 1932, when Karl Jansky at Bell Telephone Laboratories observed radiation coming from the Milky Way.

Africa Name Location Frequency Range RemarksAVN-GhanaKuntunse, Ghana 3.8–6.4, 5, 6.7 GHz 32-metre (104 foot) single dish, first of African VLBI NetworkC-BASS SouthMeerkat National Park, South Africa 4.5–5.5 GHz 7.6-metre (24.9 foot) dish with polarimeter back end HartRAO 26m Hartebeesthoek Radio Astronomy Observatory, Johannesburg, South Africa 1.66–23 GHz 26 m dish. HartRAO XDM Hartebeesthoek Radio Astronomy Observatory, Johannesburg, South Africa 2.3–8.65 GHz 15 m Experimental Demonstrator Model originally build as a technology demonstrator for MeerKATHydrogen Epoch of Reionization Array (HERA)Meerkat National Park, South Africa 50–200 MHz In progress – currently nineteen 14 m reflectors with crossed dipole antennas as feed.Hydrogen Intensity and Real-time Analysis eXperiment (HIRAX)Meerkat National Park, South Africa 400–800 MHz In progress – currently eight 6 m dishes with dual-polarization dipole antennas as feed at HartRAO. Indlebe Durban University of Technology, Durban, South Africa 1420 MHz 5 meter (16 foot) parabolic reflector KAT-7 Meerkat National Park, South Africa 1200–1950 MHz Seven, 12 meter (39 foot) dishes. MeerKAT Meerkat National Park, South Africa 0.58–14.5 GHz Sixty four, 13.5 m dishes. A pathfinder for the Square Kilometre Array.Precision Array for Probing the Epoch of Reionization (PAPER)Meerkat National Park, South Africa 100–200 MHz Now disassembled, PAPER at its maximum had 128 crossed dipole antennas, making it the interferometer with more elements than any other at that time.

Antarctica Name Location Frequency Range Remarks Degree Angular Scale Interferometer (DASI) Amundsen–Scott South Pole Station 26–36 GHz 13-element interferometer measuring anisotropies in the cosmic microwave background. South Pole Telescope (SPT) Amundsen–Scott South Pole Station 95–350 GHz 10-m microwave telescope making observations of clusters using the Sunyaev-Zeldovich effect. Also participates in Event Horizon Telescope observations. Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) Amundsen–Scott South Pole Station 230, 450–495, 800–820 GHz 1.7 m off-axis telescope for submillimeter astronomy at wavelengths between 0.2 and 2 mm. Operated with five heterodyne receivers at 230, 450–495 (two), and 800–820 GHz (single and four-pixel array), plus seven acousto-optical spectrometers. Located in the Dark Sector, ~1 km from the station. Operated 1995–2005 by the Harvard-Smithsonian Center for Astrophysics. Three Gorges Antarctic Eye Zhongshan Station, Antarctica Radio to low-frequency millimetre-wave bands (incl. 1420 MHz HI line and NH3 lines) 3.2 m radio/millimetre-wave telescope, launched April 2025. Conducting observations of Milky Way neutral hydrogen and ammonia molecular spectral lines to study interstellar gas dynamics and star formation. Co-developed by China Three Gorges University and Shanghai Normal University.

Asia Name Location Frequency Range Remarks Delingha 13.7 m Delingha, Qinghai, China 85–115 GHz Dish diameter: 13.7 m. Site altitude: 3200 m. Operated by Purple Mountain Observatory. Sheshan Shanghai, China 1660 MHz 25 m. Operated by SHAO (Shanghai Astronomical Observatory) Nanshan 25m Ürümqi, China 1.4–18 GHz L/C/S/X band receivers. 70 km south to Ürümqi. Operated by XAO (Xinjiang Astronomical Observatory). Primeval Structure Telescope (PaST) Xinjiang, China 50–200 MHz PaST is planned to be an array of some ten-thousand log-periodic antennas spread over several square kilometers. Construction started in 2004. Chinese Spectral Radio Heliograph (CSRH) Inner Mongolia, China 0.4–15 GHz CSRH is an interferometer under construction in China. The CSRH will consist of 100 telescopes covering 0.4–15 GHz. 40 telescopes of 4.5 m cover 400 MHz – 2 GHz and 60 telescopes of 2 m cover 2–15 GHz. CSRH will be one of the world's largest and most advanced imaging spectroscopy instruments. CSRH will be used to study coronal mass ejections. All of the 4.5m telescopes are assembled and the 2m telescopes will be assembled by 2013. Miyun Synthesis Radio Telescope (MSRT) Miyun, China 232 MHz Array of 28 9-meter dishes, completed in 1984. Miyun 50m Radio Telescope Miyun, China 2–12 GHz Built in 2005. Kunming 40m Radio Telescope Kunming, China 2–12 GHz Built in 2006. Tianlai experiment cylinder pathfinder telescope Hongliuxia, Balikun, Xinjiang, China 500–1500 adjustable, currently 700–800 MHz 3 cylinder reflectors, including a total of 96 dual-polarization receiver feeds, built in 2016Tianlai experiment dish pathfinder telescope Hongliuxia, Balikun, Xinjiang, China 500–1500 adjustable, currently 700–800 MHz 16 dishes of 6m aperture, built in 2016 Tian Ma 65m Radio Telescope Shanghai, China 1–50 GHz Built in 2012. Operated by SHAO (Shanghai Astronomical Observatory) Giant Metrewave Radio Telescope (GMRT) Pune, Maharashtra, India 50–1420 MHz Thirty 45 m wire dishes; largest telescope at meter wavelengths. Operated by the National Centre for Radio Astrophysics. Ooty Radio Telescope (ORT) Ooty, Tamil Nadu, India 326.5 MHz The radio telescope is a 530-metre (1,740 ft) long and 30-metre (98 ft) tall cylindrical parabolic antenna. It operates at a frequency of 326.5 MHz with a maximum bandwidth of 15 MHz at the front end. Gauribidanur Radio Observatory Gauribidanur, Karnataka, India 40–150 MHz Operated by (Indian Institute of Astrophysics). A Radioheliograph. Nizamia Observatory Japal-Rangapur Observatory, Hyderabad, Telangana, India 10 GHz (3 cm) 3 m (10-foot) radio telescope added in January 1980, funded by the University Grants Commission. Originally installed to observe the solar eclipse of 16 February 1980; used for mapping solar radio emissions and galactic radio sources. Part of the historic Nizamia Observatory (founded 1908), relocated to Japal-Rangapur to avoid light pollution. Nobeyama radio observatory Nagano Prefecture, Japan 17–115 GHz A 45 m single-dish short-millimetre telescope, and six 10 m telescopes of the Nobeyama Millimetre Array (NMA), both operated by the National Astronomical Observatory of Japan (NAOJ) Siberian Solar Radio Telescope (SSRT) Badary, Buryatia, Russia 5.7 GHz The SSRT is a crossed interferometer, consisting of two arrays of 128x128 parabolic antennas 2.5 meters in diameter each, spaced equidistantly at 4.9 meters and oriented in the E-W and N-S directions. The SSRT is a special-purpose solar radio telescope designed for studying solar activity in the microwave range (5.7 GHz). Badary Radio Astronomical Observatory Badary, Buryatia, Russia 1.4–22 GHz 32 m RT-32 radio telescope, operating range 1.4–22 GHz. Tien Shan Astronomical Observatory Big Almaty Gorge, Almaty, Kazakhstan 12 m radio telescope used for solar radio observations and tracking artificial satellites. Located at 2,800 m altitude. Founded in 1957; operated by the Fesenkov Astrophysical Institute (FAPHI). Also houses optical telescopes including two 1 m Ritchey-Chretien reflectors. Galenki RT-70 radio telescope Galenki (Ussuriysk), Russia 5–300 GHz RT-70, 70 m telescope, operating range 5–300 GHz Suffa RT-70 radio telescope Suffa plateau, Uzbekistan 5–300 GHz RT-70, the construction started in 1981 but was never completed.Five hundred meter Aperture Spherical Telescope (FAST)Guizhou, China70–3000 MHz500m radio telescope, the world's largest filled-aperture radio telescope, operating range 70–3000 MHz. Qitai Radio Telescope Qitai County, Xinjiang, China 300 MHz–117 GHz Construction work started in 2012. Will be operated by XAO (Xinjiang Astronomical Observatory). Thai National Radio Telescope Chiang Mai, Thailand 300 MHz–115 GHz Construction work started in 2017. A 40m single-dish short-millimetre telescope, operated by the National Astronomical Research Institute of Thailand (NARIT). VERA Japan 6.7 GHz–43 GHz A VLBI system with four 20-m telescopes in Japan (Mizusawa, Chichijima, Iriki, Ishigaki island) operated by the National Astronomical Observatory of Japan (NAOJ). Usuda Deep Space Center Saku, Nagano Prefecture, Japan S-band (2 GHz), X-band (8 GHz) 64 m parabolic antenna (1,980 tons total weight), built by Mitsubishi Electric and operational since 1984. Japan's primary ground station for deep space exploration, supporting missions including Hayabusa, Hayabusa2, and Akatsuki. Ka-band capability added in 2021 via the GREAT project. Operated by JAXA/ISAS. Kashima 34-m Radio Telescope Kashima, Ibaraki Prefecture, Japan 1.35–43 GHz 34 m parabolic antenna installed in 1988; the first large antenna in Japan dedicated to VLBI. Participated in global geodetic VLBI for the IVS and supported the VSOP space VLBI mission. Featured a steerable sub-reflector and multi-receiver trolley system. Irreparably damaged by a typhoon in 2019. Operated by NICT. Daocheng Solar Radio Telescope Sichuan province, China 150 MHz–450 MHz 313 parabolic antennas for detection of coronal mass ejection events. Operations started in 2023. Mingantu interplanetary scintillation telescope Inner Mongolia, China 327 MHz and 654 MHz interplanetary scintillation telescope, consists of three rotatable cylindrical antennas (140 metres by 40 metres each). Taeduk Radio Astronomy Observatory (TRAO) Daejeon, Republic of Korea 86–115 GHzTRAO was established in October 1986 with the 13.7 meter Radio Telescope. It opened the new era of the millimeter-wave radio astronomy in Korea as one of the main facilities of Korea Astronomy and Space science Institute (KASI). It is operated by Radio astronomy division in KASI. Korean VLBI Network (KVN) Republic of Korea 22/43/86/129 GHzKVN consists of four 21-m radio telescopes located in Seoul, Ulsan, Jeju Island and Pyeongchang (Constructing), Republic of Korea. They have an identical design and are equipped with a quasi-optical system that allows simultaneous observations at 22, 43, 86, and 129 GHz. Since August in 2013, KVN Ulsan have started to operate 6.7 GHz in single-dish and VLBI modes.

Australia