Michigan Area Codes

Which Michigan Area Code Covers Where

2 of Michigan's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.

• 248+947· Auburn Heights, Birmingham, Clarkston, Commerce +17 more
• 313+679· Detroit Zone 1, Detroit Zone 2, Detroit Zone 3, Detroit Zone 4 +2 more

The remaining 9 codes cover their own area: 231, 269, 517, 586, 616, 734, 810, 906, 989.

How Michigan Got Its Area Codes

Michigan went from 2 area codes in 1947 to 13 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.

1. 1947313overlaid 313
2. 1947517one of the original 1947 area codes
3. 1947616one of the original 1947 area codes
4. 1961906in service; no parent code on record
5. 1993810split from 313
6. 1997248split from 810
7. 1997734split from 313
8. 1999231split from 616
9. 2001989split from 517
10. 2001586split from 810
11. 2002269split from 616
12. 2002947overlaid 248
13. 2025679overlaid 313

Dates from the NANPA area code report, 09/19/2026.

Michigan Call Routing Regions

Michigan spans 6 LATAs — the regions a call is routed within before it becomes long-haul.

• 340131 rate centres
• 348218 rate centres
• 326154 rate centres
• 344134 rate centres
• 34657 rate centres
• 34297 rate centres

Which Michigan Area Code Covers a City?

Michigan has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.

Michigan Numbering Structure