Your complete guide to dialling Saint Helena from Jamestown to anywhere in the world — verified +290 country code, Atlantic/St_Helena time zone, Africa region, ISO references, live local time and weather, plus a step-by-step walkthrough.
Calling
Saint Helena
+290
Jamestown
Weather
HD voice signal
Alpha-2
SH
Alpha-3
SHN
Saint Helena
SH
2 Digit ISO
+290
Country Calling Code
SHN
3 Digit ISO
Capital
Jamestown
Time zone
Atlantic/St_Helena
Weather · Jamestown
Humidity
Wind
Saint Helena
+290
Capital
Jamestown
Region
Africa
Time zone
Atlantic/St_Helena
Coordinates
16.0° S, 5.7° W
ISO 3166-1
SH / SHN
Dial format
+290 [area] [number]
Current time in Jamestown
—:—
Best time to call: 09:00 – 17:00 St Helena
A complete international number is built from four parts. Here's the anatomy and the dialling order.
Number anatomy
Format follows ITU-T Recommendation E.164 the international public telecommunication numbering plan.
Press + on a mobile (hold the 0 key), or dial 00 from most countries / 011 from North America.
Dial +290. This identifies Saint Helena on the global telephone network.
Type the first part of the local number. Drop the leading 0 if there is one.
The remaining digits route the call to the specific line in Jamestown or elsewhere.
To call Saint Helena on WhatsApp, save the number with +290 and no exit prefix — WhatsApp dials from your contacts, not a dial pad. Voice and video calls are free over data.
Need an inbound Saint Helena number?
TKOS provisions +290 DIDs and termination through direct carrier interconnects.
Whether you're reaching Saint Helena for business or family, three habits keep every conversation crystal clear and a clean route from TKOS handles the rest.
Jamestown routes through West Africa can carry higher jitter — a headset with active noise cancellation compensates for audio artefacts without you needing to adjust anything.
Jamestown is ~3,398 km away — expect ~280ms round-trip. A wired ethernet connection keeps packet loss below 0.1%.
Schedule Saint Helena calls during Jamestown business hours — 09:00–17:00 Atlantic/St_Helena — your contact will be at their desk in a quiet space rather than taking the call on the move.
Capital
Jamestown
Population
5.6K
Area
308 km²
GDP (USD)
$50.00M
Currency
Saint Helena Pound (SHP £)
Languages
English
Emergency number
999
Internet TLD
.sh
Drive side
Left-hand traffic
Latitude / Longitude
15.97°S / 5.71°W
Time zone
Atlantic/St_Helena
ISO 3166 codes
SH · SHN
Jamestown is a West Africa destination — TKOS routes direct via West African submarine cable, cutting costs versus international hub routing.
Built on top of every Saint Helena (+290) route quality, price, and people you can reach.
TKOS uses direct West Africa carrier interconnects terminating at Jamestown. Bypassing transit hubs keeps packet loss under 0.5% on every Saint Helena route.
West Africa routes like Saint Helena (Jamestown) carry high carrier markups — TKOS negotiates direct Jamestown interconnects to keep your rate down. Transparent per-minute rates for Saint Helena (+290), no hidden fees.
Your account manager covers Atlantic/St_Helena hours for Saint Helena. Phone, email, and live chat — always online for Jamestown routes, day or night.
Everything a business or traveller needs to know before dialling Saint Helena (+290). Can't find an answer? Our team is one click away.
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The route you pilot today is the route that carries your millionth minute to Saint Helena (+290). No migration. No replatforming. No renegotiation.