Country Code: +245
International Call Prefix: 00
Trunk Prefix:
Calling formats
To call in Guinea-Bissau, the following format is used:
xxxx Calls within an area code
yyxxxx Calls inside Guinea-Bissau in city centers
+24588524 Calls from outside Guinea-Bissau
References
Telephone numbers in Guinea-Bissau Wikipedia(Text) CC BY-SA