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Area Code 240

Where does the 240 area code belong?

STATE
Maryland
TIME ZONE
Eastern Time
MAJOR CITY
Gaithersburg

The 240 Area Code (or Area Code 240) is located in the state of MD. Area Code 240 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 765 thousand unique phone numbers and 1.62 million individuals near the city of Bethesda

Area Code 240 History

Area code 240 was put into service. Area code 240 is an overlay of area code 301.

Following cities also use area code 240:

Adamstown, Ashton, Baltimore, Beltsville, Bethesda, Brandywine, Cabin John, Callaway, Capitol Heights, Chevy Chase, Clarksville, Clinton, College Park, Columbia, Crofton, Cumberland, Damascus, Emmitsburg, Frederick, Frostburg, Gaithersburg, Glenn Dale, Grantsville, Greenbelt, Hagerstown, Hancock, Highfield, Hughesville, Hyattsville, Ijamsville, Indian Head, Kensington, La Plata, Laurel, Leonardtown, Lexington Park, Mccoole, Mechanicsville, Middletown, Mount Airy, Mount Rainier, Myersville, Nanjemoy, Newburg, Oakland, Odenton, Oxon Hill, Poolesville, Ridge, Rockville, Sandy Spring, Silver Spring, Smithsburg, Tall Timbers, Temple Hills, Thurmont, Upper Marlboro, Waldorf, Williamsport.

ZIP codes in Area Code 240:

20588 (Dhs)
20601 (Waldorf)
20602 (Waldorf)
20603 (Waldorf)
20604 (Waldorf)
20610 (Barstow)
20611 (Bel Alton)
20612 (Benedict)
20615 (Broomes Island)
20616 (Bryans Road)

Big city in area code 240

Silver Spring

COUNTY
Montgomery
POPULATION
291,576
Gaithersburg

COUNTY
Montgomery
POPULATION
139,916
Rockville

COUNTY
Montgomery
POPULATION
134,991
Source: WorldAtlas.com
NUMBER OF PREFIXES
645
NUMBER OF CELLPHONES
383,737
NUMBER OF LAND LINES
172,793
MEDIAN HOME VALUE
$1.87M
MEDIAN INCOME
$229K
Source: WorldAtlas.com

Browse Area Code (240) Prefixes

PREFIX COUNTY CITY CARRIER TYPE
240-350 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-351 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-352 Charles La Plata Peerless Network Of Maryland, Llc Landline
240-353 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-354 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-355 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-356 Frederick Frederick Level 3 Communications, Llc - MD Landline
240-357 Frederick Frederick Cellco Partnership Dba Verizon Wireless - MD Wireless
240-358 Montgomery Damascus Peerless Network Of Maryland, Llc Landline
240-359 Charles Indian Head Peerless Network Of Maryland, Llc Landline
240-361 Montgomery Gaithersburg Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-362 Allegany Cumberland Verizon Maryland, Inc. Landline
240-363 Anne Arundel Kensington Global Naps South, Inc. - MD Landline
240-364 Montgomery Gaithersburg Cavalier East Llc - MD Landline
240-365 Montgomery Damascus Baltimore-Washington Telephone (Bwt) Landline
240-366 Washington Williamsport At&t Local Landline
240-367 Frederick Frederick Sprint Spectrum L.p. Wireless
240-368 Charles Waldorf Peerless Network Of Maryland, Llc Landline
240-369 Carroll Mount Airy Core Communications, Inc. - MD Landline
240-370 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-371 Montgomery Mount Rainier Peerless Network Of Maryland, Llc Landline
240-372 Montgomery Gaithersburg Sprint Spectrum L.p. Wireless
240-373 Anne Arundel Odenton Verizon Maryland, Inc. Landline
240-374 Laurel Global Crossing Local Services, Inc.-Md Landline
240-375 Montgomery Capitol Heights Sprint Spectrum L.p. Wireless
240-376 Charles Hughesville Peerless Network Of Maryland, Llc Landline
240-377 Charles Indian Head Global Crossing Local Services, Inc.-Md Landline
240-378 Allegany Cumberland Core Communications, Inc. - MD Landline
240-379 Frederick Frederick Verizon Maryland, Inc. Landline
240-380 Montgomery Cabin John Cellco Partnership Dba Verizon Wireless - MD Wireless
240-381 Montgomery Silver Spring New Cingular Wireless Pcs, Llc - DC Wireless
240-382 Washington Hagerstown Teleport Communications America, Llc - MD Landline
240-383 Montgomery Chevy Chase New Cingular Wireless Pcs, Llc - DC Wireless
240-384 Fairfax Callaway Peerless Network Of Maryland, Llc Landline
240-385 Frederick Myersville Verizon Maryland, Inc. Landline
240-386 Montgomery Gaithersburg Verizon Maryland, Inc. Landline
240-387 Montgomery Chevy Chase Cavalier East Llc - MD Landline
240-388 Montgomery Gaithersburg Sprint Spectrum L.p. Wireless
240-389 Montgomery Sandy Spring Atx Telecommunications Services, Ltd Landline
240-390 Montgomery Sandy Spring Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-391 Mount Rainier Global Crossing Local Services, Inc.-Md Landline
240-392 Prince Georges Oxon Hill Starpower Communications, Llc - MD Landline
240-393 Montgomery Cabin John Cellco Partnership Dba Verizon Wireless - MD Wireless
240-394 Carroll Mount Airy New Cingular Wireless Pcs, Llc - DC Wireless
240-395 Montgomery Bethesda Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-396 Montgomery Mount Rainier Global Crossing Local Services, Inc.-Md Landline
240-397 Frederick Frederick Cellco Partnership Dba Verizon Wireless - MD Wireless
240-398 Montgomery Cabin John Sprint Spectrum L.p. Wireless
240-399 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-400 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-401 Montgomery Rockville New Cingular Wireless Pcs, Llc - DC Wireless
240-402 Fairfax College Park Mci Worldcom Communications, Inc. - MD Landline
240-403 Montgomery Rockville Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-404 Montgomery Gaithersburg Xo Maryland, Llc Landline
240-405 Frederick Frederick Us Lec Of Maryland, Inc. Landline
240-406 Montgomery Rockville New Cingular Wireless Pcs, Llc - DC Wireless
240-407 Mount Rainier Global Crossing Local Services, Inc.-Md Landline
240-408 Montgomery Rockville New Cingular Wireless Pcs, Llc - DC Wireless
240-409 Frederick Frederick New Cingular Wireless Pcs, Llc - DC Wireless
240-412 Charles Waldorf Sprint Spectrum L.p. Wireless
240-413 Prince Georges Hyattsville Omnipoint Communications Cap Operations, Llc Wireless
240-414 Fairfax Mount Rainier Peerless Network Of Maryland, Llc Landline
240-415 Frederick Frederick Ymax Communications Corp. - MD Landline
240-416 Charles Waldorf New Cingular Wireless Pcs, Llc - DC Wireless
240-417 Montgomery Capitol Heights Sprint Spectrum L.p. Wireless
240-418 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-419 Charles Waldorf Cellco Partnership Dba Verizon Wireless - MD Wireless
240-420 Washington Hagerstown Verizon Maryland, Inc. Landline
240-421 Montgomery Rockville Omnipoint Communications Cap Operations, Llc Wireless
240-422 Frederick Frederick Omnipoint Communications Cap Operations, Llc Wireless
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Phone Numbers Starting With (240) Area Code

Phone Number
240-355-9571		 USAGE
Wireless		 City
Beltsville		 Operate
Read more about who called from 2403559571		 Update Time
Mar-20-2024
Phone Number
240-201-8513		 USAGE
Landline		 City
Ridge		 Operate
Read more about who called from 2402018513		 Update Time
Mar-20-2024
Phone Number
240-742-1839		 USAGE
Landline		 City
Ridge		 Operate
Read more about who called from 2407421839		 Update Time
Mar-20-2024
Phone Number
240-560-8704		 USAGE
Landline		 City
Chevy Chase		 Operate
Read more about who called from 2405608704		 Update Time
Mar-20-2024
Phone Number
240-201-6377		 USAGE
Landline		 City
Ridge		 Operate
Read more about who called from 2402016377		 Update Time
Mar-19-2024
Phone Number
240-532-9625		 USAGE
Landline		 City
Ridge		 Operate
Read more about who called from 2405329625		 Update Time
Mar-19-2024
Phone Number
240-392-4514		 USAGE
Landline		 City
Oxon Hill		 Operate
Read more about who called from 2403924514		 Update Time
Mar-19-2024
Phone Number
240-398-3338		 USAGE
Wireless		 City
Cabin John		 Operate
Read more about who called from 2403983338		 Update Time
Dec-27-2023
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