Due to the last digit of the country code (+380) being identical to the trunk prefix (0), international format numbers are often mistakenly presented as +38 0..., e.g. as in the (fictional) Kyiv number +38 044 555 1234, because people tend to mistakenly think that the last digit of the country code and the trunk prefix are the same number just being swapped around. +38 belonged to Yugoslavia before its disintegration in the early 1990s, and the +38 code was broken up and distributed amongst the former republics. +380 went to Ukraine, which previously used the +7 code.
