Number::Phone::Country now knows about South Sudan
On 9 July 2011, southern Sudan gained its independence, and became the independent republic of South Sudan. It has been allocated ISO 3166 country code SS and ITU-T E.164 dialling code +211. Number::Phone::Country now knows about the world's youngest country.
I did have to make two small assumptions though, as there's no data available. I assumed that, like (northern) Sudan and most other countries, the dialling codes to use inside the country to get an international line and to dial someone in another area code are 00 and 0, in line with ITU recommendations. If anyone knows better, do please email me to let me know!