Calling Gambia from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 220 - Country Code for Gambia
• Phone Number - 7 digits
• US to Gambia international dialing format: 011 220 ??? ????

How to dial to Gambia cellular:

• dialing format for calls to a cell phone: 011 220 X?? ????
• X can be 2, 3, 5, 6, 7, 8 or 9

Phone Books:

• AccessGambia.com - business directory