Call St. Helena
Country code +290
Use the complete +290 format, compare it with the domestic form, and confirm the exact destination and rate before calling.
Published calling rates
Mobile 246¢/min · Landline 180¢/min
Published 5 November 2026. Enter the complete number for a final route and price check before calling.Metadata-derived masked St. Helena number-format example
A domestic-format example is 512XX; its international form is +290 512XX. Final subscriber digits are masked with X, so this is a format guide rather than a number to call. The example comes from libphonenumber-js 1.13.11 example metadata; check the current national plan before relying on a number range.
Convert the number for +290
The national example does not show an extra domestic access prefix. Add +290 before the complete national number.
+290 does not identify St. Helena by itself
+290 is also used by Tristan da Cunha. The example +290 512XX includes the destination-identifying digits after the shared code. Dadaphone must identify the complete number as St. Helena before you rely on the destination or rate.
Check mobile and landline availability separately
The masked metadata example is a mobile format; it does not prove that range is reachable. Geographic landlines, mobiles, toll-free ranges, premium services and short codes can route differently. Confirm the number type, availability and price for the complete number before calling.
If the St. Helena number is rejected
Check the country code, national-number length and domestic access prefix. For a business, use its published international geographic number rather than an internal extension or local short code. Never add digits by guesswork.
Recorded mobile network identifiers
The public MCC/MNC registry lists Failed Calls for St. Helena. A registry entry does not guarantee that a particular number or Dadaphone route is active.
Check local time before calling
St. Helena is recorded in UTC+00:00. Check the recipient's current city and date, especially when the destination spans more than one time zone.
Questions before you call
How is a domestic St. Helena number written internationally?
512XX becomes +290 512XX in the masked example. The national example does not show an extra domestic access prefix. Add +290 before the complete national number.
Why must I enter the complete St. Helena number?
The full number determines whether Dadaphone identifies St. Helena, the number type, route availability and the rate. +290 is shared with other destinations.
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