Maryland · Eastern Time
Annapolis, MD Area Codes
Annapolis is served by 3 area codes (410, 443, 667). Here's which is original, which are overlays, and how to pick one for a new local number.
Last updated October 3, 2026 · Source: NANPA
Area codes serving Annapolis
Annapolis sits in Maryland, part of the South region and the Eastern Time zone. Its numbers are spread across an overlay of 3 codes that all cover the same ground: 410, 443, 667.
The original code is 410 (in service since 1991). As the area ran low on numbers, regulators added overlay codes on top instead of splitting the city, so longtime residents kept their numbers while new lines received a newer code.
| Code | Area served | In service |
|---|---|---|
| 410 | Baltimore metro and the rest of eastern Maryland, including the Eastern Shore | October 6, 1991 |
| 443 | Baltimore metro and the rest of eastern Maryland, including the Eastern Shore | June 1, 1997 |
| 667 | Baltimore metro and the rest of eastern Maryland, including the Eastern Shore | March 24, 2012 |
Nearby cities sharing these area codes
- Baltimore
- Columbia
- Glen Burnie
- Towson
- Ellicott City
- Dundalk
- Salisbury
- Westminster
- Bel Air
- Aberdeen
- Elkton
- Easton
- Ocean City
How to pick an area code for a new number
When you activate a new line in Annapolis, the carrier assigns whichever code has numbers available — you usually can't choose. If a specific code matters to you (for example the prestige of 410), ask the carrier whether any blocks remain, or request a number transfer. All codes here dial identically and cost the same.
Dialing in Annapolis
Because Annapolis is an overlay area, 10-digit dialing is mandatory: always dial the area code plus the seven-digit number, even for a neighbor. From outside the US, dial +1, then the area code and number. See 10-digit dialing and overlay area codes for the background. For every code in Maryland, visit the Maryland area codes page.
Quick answers
Annapolis area code FAQ
What area codes does Annapolis use?
Annapolis, MD is served by 3 area codes: 410, 443, 667.
Which is the original Annapolis area code?
410 is the original code for Annapolis, in service since 1991; the others were added later for more numbers.
What time zone is Annapolis in?
Annapolis is in the Eastern Time zone.
Do I need to dial the area code in Annapolis?
Yes. With multiple overlapping codes, 10-digit dialing is required for every call in this area.