Maryland Area Codes

Here is the current list of area codes in the state of Maryland. There are 329 area codes in Maryland that are currently being used. Find out all Maryland area codes below by searching each of the cities below. We have the most up-to-date list of area codes in Maryland.

Area Code State City Timezone
410MarylandReisterstownEastern
301MarylandGlenn DaleEastern
301MarylandBeltsvilleEastern
410MarylandSolomonsEastern
410MarylandAnnapolisEastern
443MarylandColumbiaEastern
240MarylandRussettEastern
301MarylandUpper MarlboroEastern
443MarylandRandallstownEastern
240MarylandOaklandEastern
443MarylandQueenstownEastern
443MarylandWoodlawnEastern
301MarylandWaldorfEastern
301MarylandGrantsvilleEastern
410MarylandDeal IslandEastern
410MarylandJessupEastern
443MarylandMillersvilleEastern
240MarylandUpper MarlboroEastern
410MarylandFallstonEastern
240MarylandCallawayEastern
301MarylandOxon HillEastern
301MarylandKitzmillerEastern
240MarylandCumberlandEastern
240MarylandSandy SpringEastern
240MarylandGaithersburgEastern