North American Numbering Plan
+1 One code,
25 countries.
Area code
The +1 calling code points to a shared plan. It does not identify one country, state, province, city, carrier or person. View all +1 assignments →
Search an exact three-digit area code to see the country or territory information in this directory. Planned, reserved, uncertain and unassigned records are not shown as active country area codes.
How a +1 number is built
The area code sits after the shared calling code. These digits show structure, not a verified or reachable phone number.
Shared by all 25. By itself, it does not identify a country.
The three-digit numbering-plan area, also known as an NPA.
Seven digits: a three-digit exchange and four more.
Who is in the plan
American Samoa · 
Anguilla · 
Antigua & Barbuda · 
Bahamas · 
Barbados · 
Bermuda · 
British Virgin Islands · 
Canada · 
Cayman Islands · 
Dominica · 
Dominican Republic · 
Grenada · 
Guam · 
Jamaica · 
Montserrat · 
Northern Mariana Islands · 
Puerto Rico · 
Sint Maarten · 
St. Kitts & Nevis · 
St. Lucia · 
St. Vincent & Grenadines · 
Trinidad & Tobago · 
Turks & Caicos Islands · 
U.S. Virgin Islands · 
United States ·
What is in the data
800 area-code records: 486 listed as in service, 173 reserved, 135 needing review and 6 planned. 476 records listed as in service appear on country and territory pages; the other 324 records are not shown there as in-service area codes. An in-service status alone does not establish a country or territory association.
Retained country, region, overlay and dialing details were reviewed on . Missing values remain unavailable or need review.
NANPA status and service dates (1)
Area-code status and service dates were reviewed on 2026-10-03 using the NANPA NPA database. Scheduled dates describe planned introductions, not codes already in service.
- NANPA NPA databasereviewed 2026-10-03Retrieved 2026-10-03.
Metadata comes from public NANPA reference pages and reports. DialCodesPlus is an independent reference and is not NANPA. Sources and review details →