South Sudan is country code +211.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The country code and area code of Bara, Sudan is 249, (0)612.
The country code and area code of Juba, Sudan is 249, (0)811.
The country code and area code of Kas, Sudan is 249, (0)715.
The country code and area code of Kassala, Sudan is 249, (0)411.
The country code and area code of Khartoum, Sudan is 249, (0)1.
The country code and area code of Port Sudan, Sudan is 249, (0)311.
The country code for Sudan is +249.
(The newly independent nation of South Sudan is country code +211.)
The country code and area code of Karkoj, Sudan is 249, (0)569.
The country code and area code of Durdeib, Sudan is 249, (0)325.
The country code and area code of Argo, Sudan is 249, (0)243.
The country code and area code of Bantio, Sudan is 249, (0)861.
The country code and area code of Tendalti, Sudan is 249, (0)573.
The country code and area code of Rashad, Sudan is 249, (0)636.
The country code and area code of Ghubiesh, Sudan is 249, (0)646.
The country code and area code of Kosti, Sudan is 249, (0)571.
The country code and area code of Korti, Sudan is 249, (0)237.
The country code and area code of Atbara, Sudan is 249, (0)211.
The country code and area code of Adeela, Sudan is 249, (0)716.
The country code and area code of Alti, Sudan is 249, (0)544.