Area Code Lookup
What Area Code Is Detroit Zone 4?
Area code 313 · Michigan
Detroit Zone 4 uses area code 313. It is located in Michigan.
Area Code Serving Detroit Zone 4
Frequently Asked Questions
What area code is Detroit Zone 4?
Detroit Zone 4 uses area code 313. It is located in Michigan.
How do I call Detroit Zone 4 from outside the US?
To call Detroit Zone 4 from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-313-XXX-XXXX). The +1 is the country code for all NANPA countries.