Saint Helena country code +290 — call Saint Helena & get a number.
Roughly 1,200 miles from the nearest mainland, Saint Helena is one of the most isolated inhabited islands on the planet — and for years its phones depended on satellite until an undersea fibre cable finally reached it. Dial +290 from the US, UK or Europe, learn the island's short number plan and its single operator, and see how businesses claim a Saint Helena virtual number through MCM.
- 17,500以上の企業
- 99.99% の稼働時間 SLA
- 190か国以上
- G2 では 4.8/5
Saint Helena at a glance
ダイヤルする前に必要な番号と事実。
What is the country code for Saint Helena?
Marooned in the South Atlantic between Africa and South America, Saint Helena is a British Overseas Territory best known as Napoleon's final place of exile — and it remains hard to reach in every sense.
Its country code is +290, and the numbers behind it are short by design, historically a flat 5-digit plan that suits a population of a few thousand. Add +290 after your exit code and the island is on the line.
コード +290 に割り当てられました Saint Helena E.164 計画に基づいて ITU によって定められています。の “+” 「現地の国際終了コードをダイヤルする」という意味です。携帯電話の場合は長押しします 0 それを入力します。
4 つはすべて同じ意味です。これらはあなたの通話を次の相手に接続します。 Saint Helena.
How to call Saint Helena from anywhere
It's about as short a string as international dialing gets: your exit code, +290, then the island's local number. No trunk prefix sits in the way, so there's nothing to strip out.
完全な例: +290 +2902 XXX XXXX — 海外から電話をかける場合は、現地の先頭の 0 を省略します。
Saint Helena phone number format explained
With only a few thousand lines to assign, Saint Helena never needed a long plan — historically a flat 5-digit national number with no area codes at all. Fixed and mobile numbers live side by side in that short range, told apart by their leading digits rather than by any geography.
固定電話
Format +290 XXXXX. Fixed lines come from Sure South Atlantic, the island's sole provider.
携帯
Format +290 XXXXX. Mobile service (2G/4G) arrived relatively recently via Sure, and mobile numbers draw from the same short national plan.
Saint Helena area codes — major cities
海外から電話をかける場合は、国内の先頭の 0 を省略してください。
| 市 | 地域 | 市外局番 |
|---|---|---|
| Short national number | Fixed line | +2902 |
| Short national number | 携帯 | +29056 |
Saint Helena mobile network prefixes
The prefix after +290 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
Sure South Atlantic (Sure SH)
Saint Helena time zone
Despite sitting far out in the South Atlantic, Saint Helena keeps Greenwich Mean Time (GMT), UTC+0, all year. There's no daylight saving here, so the island holds steady on UTC+0 while London springs forward and back around it.
Midday to late afternoon in Jamestown (12:00–16:00 GMT) lines up neatly with UK afternoons in winter — though British Summer Time pulls London an hour ahead of the island — and reaches the US East Coast in its morning.
Emergency numbers in Saint Helena
Free to call from any Saint Helena phone, landline or mobile.
Common mistakes when calling Saint Helena
国際電話の失敗のほとんどは、ネットワークの問題ではなく、フォーマットの問題です。
Reaching for +247 instead of +290
Ascension Island, Saint Helena's near neighbor in the territory, has its own separate code. +290 covers Saint Helena and Tristan da Cunha; Ascension is +247. Two specks in the same ocean, two different numbers.
Expecting a long string
the island's plan is short, historically just 5 digits, so don't assume you've lost part of it.
Searching for an area code
there isn't one; the whole island shares a single short plan.
Forgetting the island holds GMT year-round
during British Summer Time the gap to the UK opens by an hour.
Assuming a choice of carriers
Sure is the only operator on the island.
Tips to reduce the cost of calling Saint Helena
Lean on VoIP/SIP wherever you can
calls riding the island's long-haul connectivity have always carried a premium.
Hold a +290 virtual number so islanders reach you at a local rate instead of an international one.
Cluster calls into business hours to sidestep costlier off-peak handling.
For any real volume, route through a wholesale carrier rather than retail minutes.
Why businesses get a Saint Helena virtual number
Getting a foothold on one of the world's remotest islands once meant shipping in equipment and people. A +290 virtual number puts you on island lines without any of that — no hardware, no presence, no voyage.
より高い回答率
Higher answer rates — on a small island, a recognizable +290 number gets answered where an overseas one doesn't.
信頼摩擦の低減
Lower trust friction — a local code reads as part of the community, not an outside cold call.
インバウンドが安い
Cheaper inbound — islanders reach you at local rates, not the cost of an international leg.
集中ルーティング
Centralized routing — pull every +290 call back to your team, wherever in the world it sits.
より迅速な拡張
Faster expansion — serve the territory without an office or a shipment of gear.
本物の PSTN の存在
Real PSTN presence — a genuine Saint Helena number, not a forwarding workaround.
Saint Helena My Country Mobile の仮想番号
Carry Saint Helena voice over carrier-grade infrastructure — the kind of reliable backbone the island itself only recently gained through its undersea fibre link.
主要市外局番のローカル DID — 数分でプロビジョニング
世界中のモバイル、固定電話、SIP エンドポイント、またはソフトフォンへの通話転送
G.711、G.729、Opus、AMR-WB による HD 音声 - 通話ごとに自動ネゴシエーション
分散型 PoP を介した主要な音声コリドーでの遅延は 150 ミリ秒未満
99.99% uptime SLA backed by geo-redundant infrastructure & sub-2s failover
WebRTC support for browser-based calling without softphone installs
REST APIs for provisioning, routing & call detail records (CDRs)
Built-in fraud protection with AI anomaly detection & STIR/SHAKEN
24/7 network monitoring and dedicated support
How to get your Saint Helena virtual number
Most businesses are live within hours, not days.
Pick Saint Helena (+290) and select a local number.
Verify your account and clear documentation.
Set routing, forwarding and IVR to your team.
Go live and start taking calls from the island.
Other country dialing guides
More country codes worth bookmarking.
Get a Saint Helena virtual number with MCM
Reach one of the world's remotest islands without leaving your desk — start free and hold a working +290 number in minutes.
Saint Helena +290 — FAQ
Just how remote is Saint Helena?expand_more
— It's one of the most isolated inhabited islands on Earth, roughly 1,200 miles from the nearest mainland in the South Atlantic — yet still reachable on a single code, +290.
Does +290 also cover Ascension Island?expand_more
— No. +290 covers Saint Helena and Tristan da Cunha; Ascension Island, in the same territory, uses its own code, +247.
Why are Saint Helena numbers so short?expand_more
— With only a few thousand lines to assign, the island never needed a long plan — historically a flat 5-digit national number.
Did the island always have good connectivity?expand_more
— No. For years it relied on satellite links; reliable broadband and voice came only after an undersea fibre cable reached the island fairly recently.
Is there more than one phone company on the island?expand_more
— No. Sure South Atlantic is the sole operator, handling landline, mobile, broadband and international links.
How do I call Saint Helena from the US?expand_more
— Dial 011, then 290, then the short local number — there's no trunk prefix to add.
What time is it on the island relative to London?expand_more
— Saint Helena sits on GMT (UTC+0) year-round, so it matches London in winter but runs an hour behind during British Summer Time.
Can I get a Saint Helena number without being on the island?expand_more
— Yes. MCM provisions local +290 virtual DIDs that route to your team anywhere in the world.