Tanzania country code, +255 explained.
Everything you need to call Tanzania with Twiching — full dialing format, step-by-step guide, and Tier-1 CLI routes that land every call.
Tanzania
Dodoma · Africa
· COUNTRY INFO · VERIFIED
- ISO Alpha-2
- TZ
- Capital
- Dodoma
- Region
- Africa
- Timezone
- UTC+3
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +255 · XX · XXXXXXX
How Tanzania numbers break down
A complete number to Tanzania follows this pattern. Twiching adds the exit and country codes automatically when you dial from the app.
EXIT CODE
Dial from the US/Canada to leave the country.
COUNTRY CODE
Routes the call directly into Tanzania.
AREA / MOBILE
Regional or mobile prefix — drop the leading 0.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +255 · XX · XXXXXXX
Tanzania on the map
Dodoma · Africa
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
How to call Tanzania
Click any step — watch the full dial string build piece by piece.
FULL NUMBER FORMAT
011 · +255 · XX · XXXXXXX
Twiching automatically adds the exit and country codes — just enter the local number.
Tanzania —
connected across every carrier.
191
Countries in directory
TANZANIA INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
Tanzania
Africa · TZ
Tanzania numbering plan & how to dial
Dialing into Tanzania means working with an open numbering plan under country code +255: a 2-digit prefix plus a 7-digit subscriber number, 9 digits total. Locally, numbers usually carry a leading "0" that gets dropped when calling Tanzania from outside the country.
Mobile coverage in Tanzania comes from 3 major networks — Vodacom Tanzania, Airtel Tanzania, Tigo Tanzania — with internet penetration at 50%. VoIP is permitted and regulated by Tanzania Communications Regulatory Authority (TCRA). Language (Swahili, English) and currency (Tanzanian Shilling) both matter here for IVR, SMS, and scheduling support around local business hours.
Across African markets, mobile-first numbering dominates and Tier-1 interconnects are the key to consistent call delivery and CLI presentation.
Skipping the exit code
From the US you must dial 011 before the +255 country code to reach Tanzania.
Keeping the national trunk "0"
Tanzania numbers often show a domestic leading 0 — drop it once you've dialed the +255 country code from outside the country.
Ignoring the time difference
UTC+3 governs local business hours in Tanzania; confirm the time there before placing the call.
Permitted — TCRA regulated
Regulated by Tanzania Communications Regulatory Authority (TCRA)
- TCRA licenses VoIP services under the Electronic and Postal Communications Act (EPOCA) 2010.
- Number portability is implemented; virtual number providers must comply with TCRA numbering plan requirements.
- Lawful interception and emergency services routing compliance are mandatory for all licensed VoIP operators.
US → Tanzania
$0.20/min
per minute
Tanzania → US
$0.15/min
per minute
More in Africa
Business calling to Tanzania
Local TZ caller ID
Present a Tanzania +255 number so prospects in Dodoma and nationwide recognise the call and are more likely to answer.
Africa outbound & support
Run sales and support lines into Tanzania over Tier-1 routes that interconnect with networks like Vodacom Tanzania.
Follow-the-sun coverage
Staff Tanzania hours (UTC+3) with routing that sends calls to the right team at the right local time.
FAQ
Calling Tanzania — frequently asked questions
Over Tier-1 direct interconnects with major local networks like Vodacom Tanzania, rather than lower-quality wholesale transit routes. That direct-carrier approach is what keeps delivery rates and call clarity high.
Yes. VoIP is permitted in Tanzania, regulated by Tanzania Communications Regulatory Authority (TCRA), so businesses can run cloud numbers and SIP termination on compliant routes. There's no special licensing hurdle for a Twiching customer to clear before calling or texting into Tanzania.
Tanzania uses an open plan: a separate 2-digit area or mobile prefix followed by a 7-digit subscriber number. The prefix is what routes the call to the right region or network once it lands in the country.
Where locally supported, yes — Twiching's Tanzania numbers can send and receive SMS in addition to voice calls. That makes a single number usable for both two-way conversations and outbound notifications.
3 major networks serve Tanzania: Vodacom Tanzania, Airtel Tanzania, Tigo Tanzania. Twiching interconnects directly with these carriers over Tier-1 routes rather than relying on third-party transit.
The US exit code is 011 for any international call, including to Tanzania. It comes right before the +255 country code, and Twiching adds both automatically when you dial from the app, so you only need to enter the local number.
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