Global Sourcebook for International Data Management

                                         by Graham Rhind

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Northern Mariana Islands

Global Sourcebook | Index | Properties

Northern Mariana Islands is a commonwealth territory of the United States of America. It forms part of the United States’ postal system.

For supplementary information, see links to post office home pages here External, to postal code pages here External and to other personal name and addressing issues pages here External.


Table of Contents

Northern Mariana Islands - Country information


Local short name form

Official name





International telephone access code


ISO 3166 country codes

Car nationality plate code

Internet country code


GRC Country Code


Northern Mariana Islands - Languages


The national language is English External. There are 3 000 speakers of Carolinian External and 14 205 speakers of Chamorro External. Tanapag External is also spoken.

Northern Mariana Islands - Address Information


Northern Mariana Islands forms part of the United States’ postal system. Its state code is MP and its postal codes (ZIP Codes) fall in the range 96950-2. Saipan has the code 96950; Tinian 96952 and Rota 96951.

House-to-house deliveries do not occur by the US Postal Services as most streets are unnamed and most houses unnumbered. Deliveries are to post office boxes and private boxes. The authorities have started the process of naming the streets in Saipan, which may result in the future to house-to-house mail deliveries.

Please refer to the chapter on the United States of America for further information.

Metadata containing postal code formatting rules, exceptions and regular expressions can be acquired External

A table containing information about the relevant position of elements within address blocks can be acquired External

Northern Mariana Islands - Postal code format graphic

image image

Northern Mariana Islands - Postal code format

Northern Mariana Islands - Postal code specifics

Northern Mariana Islands - Postal code regular expression


Northern Mariana Islands - Postal code level of coverage


Northern Mariana Islands - Post office box


This is written PO Box.

Northern Mariana Islands - Administrative districts


Administrative districts graphic


Northern Mariana Islands is sub-divided into 4 municipalities External:

    Northern Islands External
    Rota External
    Saipan External
    Tinian External

Telephone numbers in Northern Mariana Islands


The area code for all telephone numbers in Northern Mariana Islands is 670. Subscriber numbers have 7 digits.

Tables of telephone number information/formats can be acquired – see External

Properties with value Northern Mariana Islands

Every effort is made to keep this resource updated. If you find any errors, or have any questions or requests, please don't hesitate to contact the author.

All information copyright Graham Rhind 2020. Any information used should be acknowledged and referenced.