+290 is the country code for St. Helena and Tristan da Cunha.
Every phone number in St. Helena starts with +290 when you call it from another country. From the US, dial 011 290, then the full number.
- Time there
- St Helena timeGreenwich Mean Time, UTC, no daylight saving
- From the US or Canada
- 011 290 51234
- From the UK and most of Europe
- 00 290 51234
- From Australia
- 0011 290 51234
- From any mobile phone
- +290 51234
- Inside St. Helena
- 51234
- Mobile numbers
- 5 digits after +290, starting 5 or 6
- Landlines
- 5 digits after +290, such as +290 2XXXX in Jamestown
Check a +290 number to see whether it is a mobile, a landline or VoIP.
Pick the country, enter the number without the +290, and the free check shows whether it is valid and whether it is a mobile, a landline or VoIP.
Landlines in St. Helena start with 2.
| At home | From abroad | Area |
|---|---|---|
| 2 | +290 2 | Jamestown |
In St. Helena, the phone number format for apps and SMS gateways is +290 followed by the full number.
| Written | Example | Where you see it |
|---|---|---|
| At home | 51234 | Business cards, local ads |
| International | +290 51234 | Websites, email signatures |
| E.164 | +29051234 | APIs, SMS gateways, CRMs |
2 places share +290, so the next digits tell them apart.
| Place | Numbers start with | Exit code |
|---|---|---|
| St. Helena | +290, all other numbers | 00 |
| Tristan da Cunha | +290 8 | 00 |
A missed call from a +290 number you don't know can be a one-ring scam, so check it before calling back.
One-ring scams call once and hang up, hoping you call back a line that bills you international or premium rates.
- Don't call back an international number you don't know. A real caller leaves a message or sends a text.
- Check the number in the box above. A number that is not a working mobile or landline in St. Helena is a warning sign.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report it at reportfraud.ftc.gov, and see the FCC's guide to one-ring scams.
The codes next to +290 belong to other countries, so one wrong digit reaches a different place.
These are the questions people ask most about +290.
Which country uses the +290 country code?
St. Helena and Tristan da Cunha both use +290.
How do I call St. Helena from the US?
Dial 011, then 290, then the full number. A mobile number written 51234 at home is dialed 011 290 51234 from the US, or +290 51234 from any mobile phone.
Is +290 the same as 00290?
Yes. 00 is the exit code used in St. Helena and most of the world, and the + on a mobile phone stands in for whatever exit code your network uses. From the US and Canada the exit code is 011 instead.
How many digits is a phone number in St. Helena?
A mobile number has 5 digits after +290, written 51234 at home. A landline has 5 digits, written 2XXXX at home.
What are the area codes in St. Helena?
2 for Jamestown. From abroad, drop the leading digit and put +290 in front.
What time is it in St. Helena?
St. Helena is on Greenwich Mean Time, UTC, all year. It does not use daylight saving time.
How do I check a +290 number that called me?
Enter it in the box above. The free check shows whether it is a valid number from St. Helena and whether it is a mobile, a landline or a VoIP line, which helps you spot a one-ring scam before you call back.
Sources: Google's libphonenumber numbering data for lengths, mobile starts, area code places, first-issuing networks and time zones, as of September 24, 2026; the ITU list of country codes.