679 area code
Where the 679 area code is, its overlay and how to dial a +1 679 number from anywhere.
The 679 area code is in Michigan, United States (Eastern (ET)). To call from abroad: +1 679 555-0123. It is an overlay, so all 10 digits are dialled.
The 679 area code is a geographic North American Numbering Plan (NANP) code covering Michigan. It has been in service since 02-Sep-1999 and sits in the Eastern (ET) time zone.
How to dial a 679 number
+1 679 555-01231 679 555-0123679 555-0123Other Michigan area codes
Frequently asked questions
Where is the 679 area code?
The 679 area code is in Michigan, United States (Eastern (ET)).
Is 679 an overlay area code?
Yes. 679 overlays the same region as 313, so callers dial all 10 digits.
Do I have to dial 10 digits for 679?
Yes — dial the area code plus the seven-digit number.
How do I call a 679 number from another country?
Dial your exit code (or +), then 1, then 679, then the number: +1 679 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 679 number does not pinpoint a street or ZIP code.
Number holders in area code 679
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 14 prefixes are in use in 679, shared by 1 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| Multiple Ocn Listing | 14 | 100% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
All US area codes United States +1 Map of area code 679 — cities & rate centres