where is 375 area code
Belarus began using its own country code +375 in 1995. Prior to that it was part of the +7 international country code. The local numbering plan was inherited from USSR and remains with little changed.Geographic area codes were designed based on previous 3-digit USSR area codes by removing the lead 0.rior to that it was part of the +7 international country code. The local numbering plan was inherited from USSR and remains with little changed. Geographic area codes were designed based on previous 3-digit USSR area codes by removing the lead 0.