Is roaming in Sudan with a UK or US SIM card a free service?

Unfortunately, no. For global travelers visiting Sudan, using a standard SIM card from the UK or US for data, calls, or texts will almost certainly result in significant roaming charges. Sudan is not part of any free roaming zones or agreements with most international carriers. Your home provider will apply premium rates for any usage, which can quickly accumulate into a substantial bill. WorldESIM offers a cost-effective alternative, providing prepaid data plans that give you control over your spending while exploring Khartoum or the ancient sites.