Sudan's international direct dialling code is 249. Its international direct dialling access code is 00 although mobile phone users in Sudan will be able to dial overseas numbers by putting "+" in front of the country code.
Prepaid mobile phone packages are easily available in Sudan. The two telecommunications companies in Sudan are ZAIN (Tel: +249 91 230000) and MTN (Tel: +249 92-1111111). Zain has a cheaper prepaid package (SDG10) than Mtn (SDG20). Note that the customer service line for MTN, should you need to call them for any problems, can be difficult to get through.