All Ethiopian numbers have 10 digits. If calling an Ethiopian number from within the country, you'll need to dial the three-digit area code as a prefix to the number.
The international country code for Ethiopia is 251 and you need to drop the first zero from the number when calling from abroad. To call an international number from within Ethiopia, dial 00 followed by the number.
Mobile numbers begin with '09'.
All mobile phones are operated by Ethio Telecom (www.ethionet.et). Whether you’re using your home phone on a roaming plan or a locally bought phone and SIM card, expect connection problems, although the situation is improving.