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240 area code

240 area code phone numbers

Browse current phone-number listings in area code 240, associated with Allentown, Annapolis, Baden, Beltsville, Bethesda. Compare memorable patterns and listed pricing. 142,983 240 numbers are currently available from $49 to $889 (median $49), including 62,388 vanity-word and 8,521 lucky-number numbers.

  • Area code 240 is associated with Maryland
  • Time zone: Eastern Time
  • Cities describe numbering-plan coverage, not an Exclusive Digits office
  • Delivered by email after payment with the account number and transfer PIN the carrier asks for
  • Portable to Verizon, AT&T, T-Mobile and all major US carriers
AllentownAnnapolisBadenBeltsvilleBethesdaBittingerBowieBraddock Heights

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141,350 matching numbers

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  • 141,350 240 numbers in stock
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Area-code profile

About the 240 area code

Location
Montgomery County, MD, Prince George's County, MD, Frederick County, MD, and St. Mary's County, MD and 4 more counties
Time zone
Eastern Time
History
Added in June 1997 as an overlay of 301
Overlays
227 and 301 serve the same area as 240
Dialing
Local calls are dialed with 10 digits (1 + 10 digits also works)
Prefixes
800 exchange prefixes in use, held by 47 carriers
Map of the 240 area codeShaded area shows where 240 numbers are rated, with neighboring area codes outlined around it.434540703804410814724304610717BethesdaWaldorfAllentownFrederickGermantownHagerstownCumberlandLeonardtown
Approximate 240 coverage from U.S. Census ZIP code areas and NANPA rate centers.

Cities and communities in 240

Bethesda, Beltsville, Laurel, Waldorf, Allentown, Frederick, Hyattsville, Germantown, Hagerstown, Silver Spring, Bowie, Myersville, Cumberland, Leonardtown, Lexington Park, Damascus

ZIP codes in the 240 area code

202 ZIP code areas. Area codes follow telephone exchange boundaries rather than ZIP code lines, so ZIP codes near the edge can also be served by a neighboring area code.

Montgomery County, MD (48)

20812, 20814, 20815, 20816, 20817, 20818, 20832, 20833, 20837, 20838, 20839, 20841, 20842, 20850, 20851, 20852, 20853, 20854, 20855, 20860, 20861, 20862, 20866, 20868, 20871, 20872, 20874, 20876, 20877, 20878, 20879, 20880, 20882, 20886, 20889, 20892, 20894, 20895, 20896, 20899, 20901, 20902, 20903, 20904, 20905, 20906, 20910, 20912

Prince George's County, MD (36)

20607, 20608, 20613, 20623, 20705, 20706, 20707, 20708, 20710, 20712, 20715, 20716, 20720, 20721, 20722, 20735, 20737, 20740, 20742, 20743, 20744, 20745, 20746, 20747, 20748, 20762, 20769, 20770, 20771, 20772, 20774, 20781, 20782, 20783, 20784, 20785

Show 6 more counties (118 ZIP codes)

Frederick County, MD (28)

21701, 21702, 21703, 21704, 21705, 21710, 21714, 21716, 21717, 21718, 21727, 21754, 21755, 21758, 21762, 21769, 21770, 21771, 21773, 21774, 21777, 21778, 21780, 21788, 21790, 21791, 21793, 21798

St. Mary's County, MD (26)

20606, 20609, 20618, 20619, 20620, 20621, 20624, 20626, 20628, 20630, 20634, 20636, 20650, 20653, 20656, 20659, 20660, 20667, 20670, 20674, 20680, 20684, 20686, 20687, 20690, 20692

Charles County, MD (22)

20601, 20602, 20603, 20611, 20612, 20616, 20617, 20622, 20625, 20632, 20637, 20640, 20645, 20646, 20658, 20661, 20662, 20664, 20675, 20677, 20693, 20695

Washington County, MD (18)

21711, 21713, 21715, 21719, 21722, 21733, 21734, 21740, 21742, 21746, 21750, 21756, 21767, 21779, 21781, 21782, 21783, 21795

Allegany County, MD (13)

21502, 21524, 21529, 21530, 21532, 21540, 21542, 21543, 21545, 21555, 21557, 21560, 21766

Garrett County, MD (11)

21520, 21521, 21523, 21531, 21536, 21538, 21539, 21541, 21550, 21561, 21562

Area codes that share 240’s area

227301

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