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Niue phone number format

How do you format a Niue phone number?

Write a Niue phone number with the country code +683. A mobile looks like 888 4012 inside Niue and +683 888 4012 from abroad. Mobiles have 4 or 7 digits after the country code, and the E.164 form is +6838884012. A format check confirms the digits fit the numbering plan, not that the number is in service.

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Niue number format at a glance

Country calling code+683
International prefix (calling out of Niue)00
Trunk prefix (domestic dialling)None
Mobile number length4 or 7 digits after +683
Landline number length4 digits after +683
Mobile vs landline from the digitsYes, separate ranges

In short: +683, 4 or 7 digits for a mobile. The checker below formats any Niue number free in your browser; it can't say whether a line is live. Bulk phone number validator · Pro + Phone plan

Example Niue phone numbers

These are the example numbers from Google’s libphonenumber data, the same numbering-plan data our validator uses, written three ways.

FormatMobileLandline
National (inside Niue)888 40127012
International+683 888 4012+683 7012
E.164+6838884012+6837012

How to write a Niue number in E.164

  1. Remove spaces, dashes, dots and brackets so only digits are left.
  2. Niue has no trunk prefix, so keep every digit of the national number.
  3. Put +683 in front. The result has 4 or 7 digits after the country code for a mobile.

So 888 4012 becomes +6838884012. E.164 is the format SMS gateways, dialers and most CRMs store; see the E.164 format explained for why.

Mobile or landline?

Niue allocates separate number ranges to mobiles and landlines, so a numbering-plan check reads the line type straight from the digits, for free. That type describes the range the number came from. It doesn’t prove the number is connected today.

Mobile, landline and special number ranges in Niue

A Niue mobile number starts with 5, 6, 8881–8889 after +683. Every valid number of each type below starts with one of the digit groups shown. A number that starts the right way can still be unassigned: the groups say what a range is for, not that a number is connected.

TypeStarts with, after +683DigitsExample
Mobile5, 6, 8881–88894 or 7+683 888 4012
Landline (fixed line)4, 74+683 7012

Sources, checked 5 November 2026

Validate a list of Niue numbers

Check a single number with the free phone number validator. For a whole file, upload the CSV to the verifier: every row gets a status, the E.164 number, the country and the line type, and emails in the same file get a live mailbox check. The Pro + Phone plan ($49.99 a month) adds 5,000 live carrier lookups a month for the real line type and current carrier.

Common questions

What is the country code for Niue?
The country calling code for Niue is +683. When you call Niue from abroad, dial your international prefix (or +) followed by 683 and the number.
How many digits is a Niue phone number?
A Niue mobile number has 4 or 7 digits after the country code +683, and a landline has 4.
How do I write a Niue number in international format?
Start with +683, then add the rest of the number. The mobile number 888 4012 becomes +683 888 4012, or +6838884012 in E.164, the form most CRMs and SMS tools expect.
Can you tell if a Niue number is a mobile?
Usually, yes. Niue numbers come from ranges allocated separately to mobiles and landlines, so a numbering-plan check reads the line type from the digits. It tells you what the range is for, not whether the number is in service.
Does a valid format mean a Niue number is in service?
No. A valid format means the digits fit a range Niue's numbering plan allocates. It cannot tell whether the number is connected today or who carries it, because numbers are reassigned and ported. A live carrier lookup reports the current carrier and line type, but even that does not prove someone answers.
Can I check a list of Niue numbers for free?
Yes. Paste them in the list tab above or upload a CSV to the bulk phone number validator: E.164, country, format status and numbering-plan line type are free for every row, with no account. Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month).

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