On 14 October 2009, Ukraine switched to the dialing conventions common in the European Union.

For instance, to call Vancouver, Canada, from Kyiv, users dial 00 1 604 xxx xxxx.

Calling nationwide requires dialing 0 and then the region code followed by the local number.

For instance, to call Kyiv from Odesa, users dial 0 44 xxx xxxx.

Allocation of new GSM cell phone numbers within a geographic zone is very rare now because law requires all incoming calls to be free, including incoming calls to a cell phone.

+38 belonged to Yugoslavia before its disintegration in the early 1990s, and the +38 code was broken up and distributed amongst the former republics.

Whilst the situation ever changes on the ground the exact usage of phone numbers in these areas thus varies.