How To Call Tanzania From USA: Updated For 2025
Quick Answer
To call Tanzania from the United States:
- Landline:
011 + 255 + Area Code (2 digits) + Local Number (7 digits) - Mobile:
011 + 255 + Mobile Number (9 digits, e.g., 75X XXX XXX or 65X XXX XXX)
Examples:
- For a Dar es Salaam landline (Area Code 22):
011 + 255 + 22 + XXX XXXX - For a Tanzanian mobile phone (e.g., Vodacom prefix 75):
011 + 255 + 75X XXX XXX
Tanzania is on East Africa Time (EAT), UTC+3, and does not observe daylight saving. This is typically 7-8 hours ahead of US Eastern Time (ET), depending on US DST.
How to Dial Tanzania from the US
How to Call a Landline in Tanzania
To call a Tanzanian landline from the United States, follow these steps:
- Step 1 – Dial the US exit code: Start by dialing
011. - Step 2 – Dial Tanzania's country code: Next, key in
255. - Step 3 – Dial the Tanzanian Area Code: Tanzanian area codes are 2 digits long (e.g.,
22for Dar es Salaam). When calling from abroad, drop the leading0if it's part of the domestic area code. - Step 4 – Dial the local phone number: This is typically a 7-digit number.
For example, to call a Dar es Salaam landline number that is locally (022) XXX XXXX, you would dial: 011 255 22 XXX XXXX
How to Call a Mobile Phone in Tanzania
Calling a Tanzanian mobile phone from the US involves these steps:
- Step 1 – Dial the US exit code: Start by dialing
011. - Step 2 – Dial Tanzania's country code: Next, key in
255. - Step 3 – Dial the Tanzanian mobile number: Tanzanian mobile numbers are 9 digits long. They start with a 2-digit mobile prefix (e.g.,
75,65,68) followed by 7 digits. Do not dial a city/area code for mobile numbers. Drop any leading `0` from the domestic mobile number.
For example, if the Tanzanian mobile number is 075X XXX XXX, you would dial: 011 255 75X XXX XXX from the US.
Understanding Tanzanian Phone Numbers
Tanzanian phone numbers use the country code +255. When dialing internationally, the leading 0 from a domestic area code or mobile prefix is dropped.
Landline Numbers
- Format from US:
011 + 255 + Area Code (2 digits) + Local Number (7 digits) - The total length of the National Significant Number (NSN) after
+255for a landline is 9 digits.
Mobile Numbers
- Format from US:
011 + 255 + Mobile Prefix (2 digits, e.g., 7X or 6X) + Subscriber Number (7 digits) - Tanzanian mobile numbers are 9 digits long after the country code.
Tanzanian Area Codes (Fixed Lines)
When calling a landline in Tanzania from the US, dial 011 + 255, then the 2-digit area code (dropping any leading '0' used for domestic calls), followed by the 7-digit local subscriber number.
| Region/Major City | Area Code (Dial after 255) | Example Local Number Format |
|---|---|---|
| Dar es Salaam Region | 22 | XXX XXXX |
| Lindi, Morogoro, Mtwara, & Pwani Regions | 23 | XXX XXXX |
| Zanzibar (All Regions) | 24 | XXX XXXX |
| Katavi, Mbeya, Rukwa, Ruvuma, & Songwe Regions | 25 | XXX XXXX |
| Dodoma, Iringa, Njombe, Singida, & Tabora Regions | 26 | XXX XXXX |
| Arusha, Kilimanjaro, Manyara, & Tanga Regions | 27 | XXX XXXX |
| Geita, Kagera, Kigoma, Mara, Mwanza, Shinyanga, & Simiyu Regions | 28 | XXX XXXX |
Note: The local number is typically 7 digits long.
Tanzanian Mobile Phone Prefixes
Tanzanian mobile phone numbers are 9 digits long after the +255 country code. They start with a 2-digit mobile network prefix, typically 6X or 7X, followed by 7 digits.
| Operator | Mobile Prefixes (after 255) | Example Full Mobile Number (after +255) |
|---|---|---|
| Vodacom Tanzania | 74, 75, 76 | e.g., 75X XXX XXXX |
| MIC Tanzania Limited (Tigo) | 65, 67, 71, 77 | e.g., 65X XXX XXXX |
| Airtel Tanzania | 68, 69, 78 | e.g., 68X XXX XXXX |
| Viettel Tanzania Limited (Halotel) | 61, 62 | e.g., 61X XXX XXXX |
| Tanzania Telecommunications Company Ltd (TTCL) | 73 | e.g., 73X XXX XXXX |
| Smile Communications Tanzania | 66 | e.g., 66X XXX XXXX |
*Mobile Number Portability may affect the accuracy of operator by prefix. The 'X' represents further digits of the subscriber number.
Time Difference
Tanzania operates on East Africa Time (EAT), which is UTC+3. Tanzania does not observe Daylight Saving Time and remains on UTC+3 year-round.
The time difference compared to the US East Coast (ET):
- When the US is on Eastern Daylight Time (EDT, UTC-4, typically March to November): Tanzania is 7 hours ahead of ET. (e.g., 12 PM EDT is 7 PM in Tanzania).
- When the US is on Eastern Standard Time (EST, UTC-5, typically November to March): Tanzania is 8 hours ahead of ET. (e.g., 12 PM EST is 8 PM in Tanzania).
Tanzania's Phone System
Tanzania's telecommunications sector is regulated by the Tanzania Communications Regulatory Authority (TCRA). The country has seen significant growth in mobile penetration, with major operators including Vodacom Tanzania, Airtel Tanzania, Tigo Tanzania, Halotel, and the state-owned TTCL. While the fixed-line infrastructure is less extensive, mobile networks provide broad coverage. Tanzania is connected to international submarine fiber optic cables like SEACOM and EASSy, which have greatly improved internet connectivity and speeds. The government has been promoting ICT development and a converged licensing framework.
Best Times to Call
Considering Tanzania is 7-8 hours ahead of US Eastern Time (ET):
- For business calls from the US East Coast, early morning ET is generally the best window. For example, 8 AM - 10 AM ET would correspond to 3 PM - 5 PM or 4 PM - 6 PM in Tanzania.
- Typical business hours in Tanzania are Monday to Friday, approximately 8:00 AM to 5:00 PM EAT.
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Simple Steps to Call:
- Dial the local access number provided with your card.
- Enter your 10-digit PIN number.
- Dial the full international number for Tanzania:
011 + 255 + Tanzanian Number(Area Code + Local Number for landlines, or full 9-digit mobile number).
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