| Region | Countries | RT Centres | Clinical Accel. | Co60 | CT | Simul. | TPS | LDR Manual | LDR Remote | HDR Ir192 | HDR Co60 | Rad. Onc. | Med. Phys. | Rad. Tech. |
| Caribbean | 9 | 29 | 18 | 24 | 16 | 12 | 28 | 6 | 2 | 8 | 78 | 57 | 156 | |
| East Asia | 6 | 1909 | 1987 | 581 | 1315 | 1553 | 2103 | 5 | 3 | 162 | 46 | 8212 | 1461 | 7101 |
| Eastern Europe and Northern Asia | 27 | 389 | 242 | 523 | 128 | 109 | 315 | 17 | 39 | 75 | 101 | 1878 | 584 | 1636 |
| Mexico and Central America | 7 | 91 | 62 | 69 | 28 | 43 | 100 | 7 | 6 | 24 | 2 | 252 | 71 | 277 |
| Middle Africa | 16 | 25 | 6 | 28 | 4 | 12 | 22 | 2 | 7 | 1 | 1 | 60 | 28 | 102 |
| Middle East | 13 | 117 | 120 | 102 | 30 | 60 | 102 | 10 | 2 | 19 | 2 | 376 | 208 | 547 |
| North Africa | 5 | 56 | 45 | 47 | 15 | 30 | 41 | 2 | 20 | 8 | 309 | 122 | 370 | |
| North America | 2 | 1910 | 2219 | 200 | 479 | 1083 | 9 | 761 | 75 | 195 | 2 | 3352 | 2106 | 5898 |
| South Asia | 5 | 225 | 54 | 296 | 34 | 30 | 75 | 55 | 34 | 45 | 9 | 288 | 141 | 390 |
| Southeast Asia | 7 | 80 | 70 | 74 | 7 | 23 | 2061 | 7 | 9 | 18 | 2 | 161 | 124 | 358 |
| Southern Africa | 4 | 28 | 36 | 22 | 11 | 13 | 18 | 3 | 2 | 8 | 72 | 41 | 246 | |
| Southern and Western Pacific | 4 | 64 | 149 | 26 | 34 | 46 | 66 | 16 | 13 | 21 | 292 | 179 | 912 | |
| Temperate South America | 3 | 96 | 78 | 45 | 38 | 33 | 76 | 32 | 1 | 6 | 256 | 105 | 396 | |
| Tropical South America | 7 | 280 | 248 | 152 | 67 | 55 | 187 | 47 | 13 | 71 | 652 | 325 | 1083 | |
| Western Europe | 20 | 910 | 1795 | 337 | 466 | 630 | 794 | 306 | 77 | 165 | 4 | 3617 | 2069 | 5867 |
| Total | 135 | 6209 | 7129 | 2526 | 2672 | 3732 | 5997 | 1276 | 303 | 826 | 169 | 19855 | 7621 | 25339 |