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Sint Maarten country code +1 — call Sint Maarten & get a number.
One small island, two phone systems — and getting them straight is the whole game. The Dutch side, Sint Maarten, rides +1 on NANP area code 721; the French side answers to +590. Here's how to dial 721 from the US without 011, the TelCell and Flow prefixes, live time and weather, and how to grab a 721 virtual number with MCM.
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Sint Maarten at a glance
Los números y datos que necesita antes de marcar.
What is the country code for Sint Maarten?
Here's the wrinkle that makes this island unusual: there's no single country code for the whole landmass. The Dutch side — Sint Maarten — has no standalone code of its own. It belongs to the North American Numbering Plan, shares +1, and is pinned to area code 721, so a full number reads +1-721-XXX-XXXX.
From the US and Canada you treat it like any domestic call: dial 1 then 721, with no 011. The French half of the very same island, Saint-Martin, sits on France's +590 entirely — a few hundred metres can change the dialling code.
Código +1 fue asignado a Sint Maarten por la UIT bajo el plan E.164. El “+” significa "marcar su código de salida internacional local"; en un móvil, mantén pulsado 0 para escribirlo.
Los cuatro significan lo mismo: conectan su llamada a Sint Maarten.
How to call Sint Maarten from anywhere
To North America, 721 behaves exactly like an area code in the next state — 1 then 721, done. From everywhere outside the NANP, you front it with your own exit code instead. Just be sure you're aiming for 721 and not the French side's +590.
Ejemplo completo: +1 721 XXXXXXX — elimine el 0 inicial local cuando llame desde el extranjero.
Sint Maarten phone number format explained
A Sint Maarten number is the familiar 10-digit NANP shape: 721 followed by a 7-digit subscriber number, with nothing but the NANP 1 in front of it for long-distance. If a number you've been given starts +590 instead, it isn't Dutch Sint Maarten at all — it's the French commune next door.
Landline
+1-721-54X-XXXX (TelEm fixed-line ranges, e.g. 721-542, 721-543, 721-545)
Mobile
+1-721-5XX-XXXX (mobile ranges such as 721-520, 721-526, 721-580)
Sint Maarten area codes — major cities
Elimina el 0 inicial local cuando llames desde el extranjero.
| Ciudad | Región | Código de área |
|---|---|---|
| Philipsburg | Sint Maarten | 721 |
| Simpson Bay | Sint Maarten | 721 |
| Cole Bay | Sint Maarten | 721 |
| Cul de Sac | Sint Maarten | 721 |
| Maho | Sint Maarten | 721 |
Sint Maarten mobile network prefixes
The prefix after +1 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
TelEm / TelCell
Flow / Chippie (formerly UTS)
Sint Maarten time zone
The island runs on Atlantic Standard Time (AST), UTC-4, the same all twelve months with no daylight-saving switch. That steadiness has a neat upside: in winter Sint Maarten is just an hour ahead of US Eastern time, and once the US springs forward the two line up exactly — so for half the year you're effectively on New York's clock.
Emergency numbers in Sint Maarten
Free to call from any Sint Maarten phone, landline or mobile.
Common mistakes when calling Sint Maarten
Casi todas las llamadas internacionales fallidas se deben a un problema de formato, no a un problema de red.
Dialling the wrong half of the island
Dialling the wrong half of the island. Dutch Sint Maarten is +1-721; French Saint-Martin is +590. They share one island but route completely differently, so confirm which side your contact is on before anything else.
Adding 011 ahead of 1-721 from the US or Canada
it's NANP, so 011 has no place; just dial 1-721.
Dropping the 1 before 721 when you're calling from outside the local area
Dropping the 1 before 721 when you're calling from outside the local area.
Sending only the 7-digit subscriber number internationally
the 721 always has to lead.
Expecting a +1-721 call to be free like a US local number
despite the shared +1, it's usually billed at international Caribbean rates.
Tips to reduce the cost of calling Sint Maarten
Route calls over VoIP or an MCM virtual number instead of carrier international tariffs into 721.
Read the fine print on Caribbean/NANP bundles
plenty of US plans share +1 yet still bill 721 as international.
Hold a +1-721 DID so islanders reach you at local rates rather than calling overseas.
Switch on Wi-Fi calling while you're on the island to avoid roaming charges.
Why businesses get a Sint Maarten virtual number
On an island that lives on cruise traffic, hospitality and cross-border trade with the French side, a 721 number tells customers you're genuinely here on the Dutch side — not a +590 line, not a distant call centre.
Tasas de respuesta más altas
a familiar 721 line gets picked up where an overseas code gets screened.
Menor fricción de confianza
a real SXM DID reads as local, not as a foreign caller ID.
Entrada más barata
island callers reach you without per-minute international fees.
Enrutamiento centralizado
forward those 721 calls to a team anywhere in the world.
Expansión más rápida
open on the Dutch side without renting premises.
Presencia real de PSTN
an authentic 721 number, clearly distinct from the French +590 side.
Sint Maarten números virtuales con Mi País Móvil
Provision a genuine Dutch-side 721 DID — not a +590 lookalike — and route it anywhere on MCM's carrier-grade network.
DID locales en los principales códigos de área: aprovisionados en minutos
Desvío de llamadas a cualquier teléfono móvil, fijo, terminal SIP o softphone en todo el mundo
Voz HD con G.711, G.729, Opus y AMR-WB: negociación automática por llamada
Latencia inferior a 150 ms en los principales corredores de voz a través de PoP distribuidos
SLA de tiempo de actividad del 99,99 % respaldado por infraestructura con redundancia geográfica y conmutación por error sub-2
Compatibilidad con WebRTC para llamadas basadas en navegador sin instalaciones de softphone
API REST para aprovisionamiento, enrutamiento y registros de detalles de llamadas (CDR)
Protección contra fraude incorporada con detección de anomalías por IA y AGITACIÓN/AGITACIÓN
Monitoreo de red 24 horas al día, 7 días a la semana y soporte dedicado
How to get your Sint Maarten virtual number
Most businesses are live within hours, not days.
Choose Sint Maarten (+1-721) — the Dutch side — and pick a 721 number.
Verify your account and clear any KYC checks.
Point routing or forwarding at your team, softphones or apps.
Go live and start fielding 721 calls.
Other country dialing guides
More country codes worth bookmarking.
Get a Sint Maarten virtual number with MCM
Claim a Dutch-side +1-721 line and start your free trial today.
Sint Maarten +1 — FAQ
Sint Maarten or Saint-Martin — which code do I use?expand_more
Depends on which side. Dutch Sint Maarten is +1-721 (NANP); French Saint-Martin is +590. One island, two completely separate dialling systems.
How can I tell from a number which side of the island it's on?expand_more
If it begins +1-721 it's the Dutch side; if it begins +590 it's the French side. The code is the giveaway.
Do I need 011 to call Sint Maarten from the US?expand_more
No. Because 721 is a NANP area code, you dial 1-721 then the 7-digit number, exactly like a domestic call.
Why does my US plan charge me for a +1-721 call?expand_more
The shared +1 is misleading — 721 is treated as international Caribbean dialling by most carriers, so per-minute rates apply.
How many digits is a full Sint Maarten number?expand_more
Ten: the 721 area code plus a 7-digit subscriber number.
Does the Dutch side have more than one area code?expand_more
No — 721 covers all of Sint Maarten, from Philipsburg to Maho.
Who provides mobile service on the Dutch side?expand_more
TelEm/TelCell and Flow/Chippie (the former UTS), both operating within 721.
Does the clock change on Sint Maarten?expand_more
No. It stays on Atlantic Standard Time (UTC-4) year-round, which lines up with US Eastern time during the US summer.