The process for calling Guinea Bissau from Germany is relatively simple. To make a call, you will need the country code for Guinea Bissau (245), the area code for the city or region you are calling, and the telephone number.
The country code for Guinea Bissau is 245. The area code for Bissau is 2. The telephone number is 9. To call this number from Germany, you would dial 00245 2 9.