Calling Ethiopia from the United States explained:

• 011 - US exit code; dial first for international calls made from the USA or Canada
• 251 - Country Code for Ethiopia
• Phone Number (may not begin with 0) - 9 digits for both fixed lines and cell phones
• US to Ethiopia international dialing format: 011 251 ?? ??? ????

How to dial to Ethiopia cellular:

• dialing format for calls to a cell phone: 011 251 9? ??? ????
• exceptions: 98 ??? ???? is used for VSAT network (satellite communications)

Area Codes:

Phone Books:

• Africa Phone Books - Ethiopia