Resolution 646 (Rev. WRC-19) encourages administrations to consider the following regionally harmonized frequency bands/ranges, as described in the most recent version of Recommendation ITU-R M.2015, ...

Some recent ITU-R studies estimate that the total spectrum needs in the fixed service for HAPS systems lie in the range from 396 MHz to 2 969 MHz for the ground-to-HAPS platform links and in the range ...

1. Allocation tables - International call sign series (Appendix 42 of the Radio Regulations), Blocks of coast station identification numbers, Blocks of selective call numbers for ship stations and ...

ITU is at the forefront of enabling environmentally sustainable digital transformation. Recognizing the pivotal role of digital technologies in climate action and sustainable development, ITU is ...

The Day of the Seafarer 2025 focuses not just on the safety from dangers at sea, but also on mariners free from harassment ...