According to Allcitycodes, Guinea-Bissau is a country located in West Africa. It has a land area of 36,125 square kilometers (13,948 square miles). The capital city of Guinea-Bissau is Bissau. The terrain in Guinea-Bissau consists mostly of low coastal plains and savanna plains with some hills and mountains. Major rivers include the Geba, Corubal, Cacheu, and Mansoa Rivers. The climate of Guinea-Bissau is tropical with hot summers and mild winters. The area code of Guinea-Bissau is +245. This code was introduced on 1 July 1998 when Guinea-Bissau switched from its old international dialling code of +800 to +245 for all incoming calls from abroad. This change was made so that all incoming calls would be routed through international carriers instead of neighbouring countries. This has helped increase security as well as improve call quality for customers calling into Guinea-Bissau from abroad. Check philosophynearby for Guinea-Bissau in 2019.