ISO 3166-2:MP
ISO 3166-2:MP is the entry for the Northern [Mariana Islands] in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization, which defines codes for the names of the principal subdivisions of all countries coded in ISO 3166-1. "MP" stands for "Marianas Pacific".
Currently no ISO 3166-2 codes are defined in the entry for the Northern Mariana Islands.
The Northern Mariana Islands, an outlying area of the United States, are officially assigned the ISO 3166-1 alpha-2 code. Moreover, it is also assigned the ISO 3166-2 code under the entry for the United States.