The area code 667 is located in Baltimore, Maryland.
Area code 667 serves the greater Baltimore, Maryland region and nearby communities along the Chesapeake Bay. It is an overlay that works alongside area codes 410 and 443, added in 2012 to provide more phone numbers without changing existing lines. Centered in the Mid-Atlantic, the area includes major neighborhoods, suburbs, and port cities tied to the Inner Harbor and the Port of Baltimore. 667 numbers follow Eastern Time and are used for both mobile phones and landlines.
You’ll find 667 across key cities and landmarks, including:
Many people link 667 to the Baltimore metro, but it also reaches parts of Maryland’s Eastern Shore and the Chesapeake Bay corridor.
As an overlay, ten-digit dialing is required for local calls, and existing 410/443 numbers stayed the same when 667 launched. New lines may receive a 667 number, but the local calling area and rates did not change. You cannot pinpoint a specific neighborhood from the area code alone, so check the full phone number for more detail. The region is home to the Orioles at Oriole Park at Camden Yards and the Ravens at M&T Bank Stadium, plus historic sites like Fort McHenry.
“3 overlay area codes — 410, 443, and 667 — serve the Baltimore region; 10‑digit dialing applies in overlay areas.” — FCC and NANPA