Your complete guide to dialling Netherlands Antilles from Willemstad to anywhere in the world — verified +599 country code, America/Curacao time zone, Americas region, ISO references, live local time and weather, plus a step-by-step walkthrough.
Calling
Netherlands Antilles
+599
Willemstad
Weather
HD voice signal
Alpha-2
AN
Alpha-3
ANT
Netherlands Antilles
AN
2 Digit ISO
+599
Country Calling Code
ANT
3 Digit ISO
Capital
Willemstad
Time zone
America/Curacao
Weather · Willemstad
Humidity
Wind
Netherlands Antilles
+599
Capital
Willemstad
Region
Americas
Time zone
America/Curacao
Coordinates
12.2° N, 69.1° W
ISO 3166-1
AN / ANT
Dial format
+599 [area] [number]
Current time in Willemstad
—:—
Best time to call: 09:00 – 17:00 Curacao
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 +599. This identifies Netherlands Antilles 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 Willemstad or elsewhere.
To call Netherlands Antilles on WhatsApp, save the number with +599 and no exit prefix — WhatsApp dials from your contacts, not a dial pad. Voice and video calls are free over data.
Need an inbound Netherlands Antilles number?
TKOS provisions +599 DIDs and termination through direct carrier interconnects.
The Netherlands Antilles was a dissolved Caribbean country that used country code +599, which continues to be assigned to its successor islands — Curaçao and Sint Maarten (St. Martin's Dutch side) retain the +599 country code today. Within +599, Curaçao uses area code 9 (numbers formatted +599 9 XXX XXXX), while Bonaire uses area code 7 (numbers formatted +599 7 XXX XXXX). Sint Maarten shares +1-721 under the North American Numbering Plan for its Dutch side, while the French side (Saint-Martin) uses French overseas code +590. Historically, the Netherlands Antilles included six islands — Curaçao, Bonaire, Sint Maarten, Sint Eustatius, Saba and Aruba — before dissolution in 2010; Aruba had already separated in 1986 and uses its own country code +297. The islands operate on Atlantic Standard Time (AST, UTC−4) year-round with no daylight saving, placing them six hours behind South Africa (SAST, UTC+2). Business is conducted primarily in Dutch, Papiamentu and English, and most offices operate Monday to Friday 08:00–17:00 AST.
Whether you're reaching Netherlands Antilles for business or family, three habits keep every conversation crystal clear and a clean route from TKOS handles the rest.
Willemstad routes perform best with an HD-compatible headset — G.722 wideband is supported on most VoIP paths to Netherlands Antilles and makes voices noticeably clearer.
Willemstad is ~10,160 km away — latency runs 280–310ms. Use wired ethernet to eliminate Wi-Fi jitter on this long-haul path.
Schedule Netherlands Antilles calls during Willemstad business hours — 09:00–17:00 America/Curacao — your contact will be at their desk in a quiet space rather than taking the call on the move.
Special-rate prefixes and the major city area codes inside Netherlands Antilles (+599).
| City | Dial codes |
|---|---|
| BONAIRE | +599-7 |
| CURAÇAO | +599-9 |
| SABA | +599-4 |
| ST. EUSTATIUS | +599-3 |
| ST. MAARTEN | +599-5 |
Capital
Willemstad
Area
800 km²
Currency
Netherlands Antillean Guilder (ANG)
Languages
Dutch, Papiamento, English
Emergency number
911
Internet TLD
.an
Drive side
Right-hand traffic
Latitude / Longitude
12.23°N / 69.06°W
Time zone
America/Curacao
ISO 3166 codes
AN · ANT
Willemstad is ~10,160 km from South Africa — TKOS routes via trans-Atlantic submarine cable at a fraction of mobile carrier rates.
Built on top of every Netherlands Antilles (+599) route quality, price, and people you can reach.
TKOS routes every Netherlands Antilles call through direct carrier interconnects, reaching Willemstad with HD voice and minimal jitter (~280ms RTT).
TKOS buys Netherlands Antilles termination in bulk, routing directly to Willemstad — the savings go straight into your per-minute rate. Transparent per-minute rates for Netherlands Antilles (+599), no hidden fees.
Your account manager covers America/Curacao hours for Netherlands Antilles. Phone, email, and live chat — always online for Willemstad routes, day or night.
Everything a business or traveller needs to know before dialling Netherlands Antilles (+599). Can't find an answer? Our team is one click away.
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