North American Numbers
State · 1 area codes
Northern Mariana Islands area codes
The Northern Mariana Islands use area code 670, serving Saipan, Tinian and Rota.
A · Metros
Major metro areas
Saipan
B · Directory
All Northern Mariana Islands area codes
Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.
Sources
NANPA ↗
Area code assignment for the Northern Mariana Islands (670) — primary
Compiled by North American Numbers, last checked 2026-09-18. How this is made.