Tanzania +255

Tanzania, officially the United Republic of Tanzania, is one of East Africa's largest and most dynamic nations, known for its iconic landmarks such as Mount Kilimanjaro, the Serengeti, and the Zanzibar archipelago. Its telecommunications sector has undergone rapid modernization over the past decade, with extensive mobile network coverage and growing internet penetration. For international callers, understanding the country's dialing procedures, including the use of the +255 country code, ensures smooth and cost-effective communication with businesses, government offices, and residents across the mainland and the islands.

Dialing Instructions for Tanzania

To call a Tanzanian number from abroad, you must dial your country's international access prefix (e.g., 011 from the USA, 00 from most European countries), followed by Tanzania's country code +255, then the local number. One of the most important nuances to remember is that Tanzania uses an open dialing plan, meaning the trunk prefix '0' is used for domestic calls but must be omitted when dialing from overseas. For example, to call a mobile number in Dar es Salaam that is locally dialed as 0712 345 678, an international caller would dial +255 712 345 678 (dropping the leading zero). The same rule applies to landline numbers in major cities like Dar es Salaam (022), Arusha (027), and Mwanza (028).

Area Codes and Numbering Structure

Tanzania's numbering plan divides numbers into geographic area codes for fixed lines and non-geographic codes for mobile services. Fixed-line numbers typically begin with a two-digit area code (e.g., 022 for Dar es Salaam, 024 for Zanzibar, 026 for Dodoma), followed by a seven-digit subscriber number. Mobile numbers, which now represent the vast majority of telephone connections, use three-digit prefixes (e.g., 071x, 073x, 074x, 075x, 076x, 077x, 078x) and are assigned to various operators such as Vodacom, Airtel, Tigo, and Halotel. Since mobile number portability was introduced, the prefix no longer guarantees a specific carrier. When dialing from within Tanzania, you must always include the trunk prefix '0' before the area or mobile code, but this is never used in international dialing.

Special Rules and Emergency Numbers

For travelers and businesses, it is crucial to note that Tanzania has several special service numbers that are reachable only within the country. The universal emergency number is 112, but 999 also works for police. Ambulance services can be reached at 115, though in remote areas, relying on local contacts or mobile networks is advisable. Additionally, toll-free numbers in Tanzania often start with 0800 and may not be accessible from abroad; if you need to reach a business's toll-free line internationally, you must use the standard +255 format with the full number, and callers may incur international charges. It is also worth noting that calls to Zanzibar and Pemba islands are treated as domestic calls within Tanzania, despite their semi-autonomous status.

Telecom Infrastructure and Number Portability

Tanzania's communications regulator, the Tanzania Communications Regulatory Authority (TCRA), has implemented number portability across both mobile and fixed networks, meaning that a subscriber can retain their number when switching operators. This has increased competition and improved service quality. However, for international callers, this means that the prefix does not always indicate the network, so you should not assume a certain prefix corresponds to a specific carrier for billing purposes. Fiber-optic submarine cables, such as the SEACOM and EASSy systems, have significantly boosted international bandwidth, making VoIP services like Skype and WhatsApp widely used among residents. Yet, for official or critical communications, traditional PSTN and mobile calls remain reliable, especially in urban centers.

Traveler and Business Tips

When traveling to Tanzania, it is advisable to purchase a local SIM card upon arrival, as international roaming can be expensive. Major airports like Julius Nyerere International Airport (DAR) and Kilimanjaro International Airport (JRO) have kiosks from all major operators, where you can register your device and buy a prepaid SIM with data packages. For business professionals, ensure that your Tanzanian contacts provide their numbers in international format (+255...), and be mindful of the time difference (EAT, UTC+3) when scheduling calls. Also, be aware that network coverage is excellent in cities and tourist hubs but can be sparse in rural areas and national parks; satellite phones are recommended for deep safari expeditions. Always double-check numbers before dialing, as a single digit mistake can connect you to a different region or service.