What is the area code for Baltimore, MD?

Baltimore is served by area codes 240, 301, 410, 443, 667. Where several are listed they overlay the same geography, so the full ten digits are always required.

What time zone is Baltimore in?

Baltimore uses America/New_York — EST in winter and EDT during daylight saving time.

Baltimore City · Maryland

Baltimore, MD area codes and time zone

Quick answer

Baltimore is served by area codes 240, 301, 410, 443, 667, keeps EST time (GMT-4), and sits in county FIPS 24510.

Area codes: 240 · 301 · 410 · 443 · 667Within 25 miles of the city centre
Time zone: ESTAmerica/New_York
UTC offset: GMT-4EDT in summer
County FIPS: 24510Baltimore City

Dialling from and to Baltimore

What this means when you pick up the phone.

Because more than one code covers this area, ten-digit dialling applies for local calls: area code plus number, every time. From abroad, dial +1 then the ten digits.

Other reference data for this city.

Baltimore sales tax rate
Baltimore ZIP codes
Baltimore housing costs
Baltimore cost of living

Source: NANPA area-code assignments, IANA time zone database and Census Bureau geography files

Baltimore, MD area codes and time zone

Dialling from and to Baltimore

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