The information provided below is incorrect. Area code 388 exists within country code 90.
There is no area code +1 388 in North America.
International country code +388 was assigned to the European Telephone Numbering Space, for the purpose of allowing companies to use a single contact number throughout Europe, but the ETNS has been discontinued and all existing +388 numbers have been taken out of service. Country code +388 is now officially designated as "unassigned."
The country code and area code of Utena, Lithuania is 370, (0)389.
The country code and area code of Bitola, Macedonia is 389, (0)47.
The country code and area code of Gevgelija, Macedonia is 389, (0)34.
The country code and area code of Gostivar, Macedonia is 389, (0)42.
The country code and area code of Kicevo, Macedonia is 389, (0)45.
The country code and area code of Kocani, Macedonia is 389, (0)33.
The country code and area code of Kumanovo, Macedonia is 389, (0)31.
The country code and area code of Ohrid, Macedonia is 389, (0)46.
The country code and area code of Prilep, Macedonia is 389, (0)48.
The country code and area code of Skopje, Macedonia is 389, (0)2.
The country code and area code of Stip, Macedonia is 389, (0)32.
The country code and area code of Tetovo, Macedonia is 389, (0)44.