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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
240-277 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-278 Howard Laurel Cellco Partnership Dba Verizon Wireless - MD Wireless
240-279 Charles Waldorf Core Communications, Inc. - MD Landline
240-280 Loudoun Laurel Comcast Phone Of Northern Maryland, Inc. - MD Landline
240-281 Montgomery Bethesda New Cingular Wireless Pcs, Llc - DC Wireless
240-282 Fairfax Mechanicsville Peerless Network Of Maryland, Llc Landline
240-283 Montgomery Kensington Paetec Communications, Inc. - MD Landline
240-284 Allegany Frostburg Level 3 Communications, Llc - MD Landline
240-285 Frederick Frederick Cellco Partnership Dba Verizon Wireless - MD Landline
240-286 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-287 Washington Hancock Core Communications, Inc. - MD Landline
240-288 Not available. Thurmont Comcast Phone Of Northern Maryland, Inc. - MD Landline
240-289 Fairfax Oxon Hill Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-290 Montgomery Mount Rainier Allegiance Telecom, Inc. - MD Landline
240-291 Washington Hagerstown New Cingular Wireless Pcs, Llc - DC Wireless
240-292 Montgomery Kensington Verizon Maryland, Inc. Landline
240-293 Montgomery Mount Rainier Starpower Communications, Llc - MD Landline
240-294 District of Columbia Laurel Xo Maryland, Llc Landline
240-295 Fairfax Laurel Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-296 Fairfax Hyattsville Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-297 Fairfax College Park Level 3 Communications, Llc - MD Landline
240-298 District of Columbia Leonardtown Cellco Partnership Dba Verizon Wireless - MD Wireless
240-299 Charles Waldorf Sprint Spectrum L.p. Wireless
240-300 Charles Waldorf Cellco Partnership Dba Verizon Wireless - MD Wireless
240-303 Fairfax Clinton Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-304 Montgomery Mount Rainier Sprint Spectrum L.p. Wireless
240-305 Montgomery Beltsville Sprint Spectrum L.p. Wireless
240-306 Montgomery Gaithersburg Allegiance Telecom, Inc. - MD Landline
240-307 Not available. Emmitsburg At&t Local Landline
240-308 Montgomery Damascus New Cingular Wireless Pcs, Llc - DC Wireless
240-309 District of Columbia Leonardtown Cellco Partnership Dba Verizon Wireless - MD Wireless
240-310 Washington Hagerstown Uscoc Of Cumberland, Inc. Dba United States Cel MD Wireless
240-312 Fairfax Capitol Heights Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-313 Washington Hagerstown Verizon Maryland, Inc. Landline
240-314 Montgomery Rockville Verizon Maryland, Inc. Landline
240-315 Frederick Frederick Verizon Maryland, Inc. Landline
240-316 Montgomery Chevy Chase Sprint Spectrum L.p. Wireless
240-317 Prince Georges Callaway Starpower Communications, Llc - MD Landline
240-318 Prince Georges Clinton Verizon Maryland, Inc. Landline
240-319 Howard Columbia Cellco Partnership Dba Verizon Wireless - MD Wireless
240-320 Charles Waldorf Cavalier East Llc - MD Landline
240-321 Garrett Oakland Uscoc Of Cumberland, Inc. Dba United States Cel MD Wireless
240-322 Allegany Mccoole Core Communications, Inc. - MD Landline
240-323 Frederick Emmitsburg Core Communications, Inc. - MD Landline
240-324 Howard Clarksville Ymax Communications Corp. - MD Landline
240-325 Montgomery Damascus Core Communications, Inc. - MD Landline
240-326 Fairfax Upper Marlboro Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-327 Montgomery Gaithersburg Core Communications, Inc. - MD Landline
240-328 Montgomery Rockville Verizon Maryland, Inc. Landline
240-329 Washington Hagerstown Level 3 Communications, Llc - MD Landline
240-330 Montgomery Cabin John Sprint Spectrum L.p. Wireless
240-331 Montgomery Mount Rainier Peerless Network Of Maryland, Llc Landline
240-332 Charles Newburg Peerless Network Of Maryland, Llc Landline
240-333 Montgomery Mount Rainier Cavalier East Llc - MD Landline
240-334 Mount Rainier Global Crossing Local Services, Inc.-Md Landline
240-335 Fairfax Glenn Dale Cavalier Telephone Mid-Atlantic, Llc - MD Landline
240-336 Montgomery Bethesda Core Communications, Inc. - MD Landline
240-337 Fairfax Mount Rainier Peerless Network Of Maryland, Llc Landline
240-338 Montgomery Silver Spring Cellco Partnership Dba Verizon Wireless - MD Wireless
240-339 District of Columbia Upper Marlboro Cavalier East Llc - MD Landline
240-340 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-341 Frederick Adamstown Mci Worldcom Communications, Inc. - MD Landline
240-342 Montgomery Sandy Spring Starpower Communications, Llc - MD Landline
240-343 Washington Hancock Cellco Partnership Dba Verizon Wireless - MD Wireless
240-344 Frederick Frederick New Cingular Wireless Pcs, Llc - DC Wireless
240-345 Howard Sandy Spring Level 3 Communications, Llc - MD Landline
240-346 Charles Waldorf Sprint Spectrum L.p. Wireless
240-347 Washington Hagerstown Bandwidth.com Clec, Llc - MD Landline
240-348 Fairfax Oxon Hill Level 3 Communications, Llc - MD Landline
240-349 Charles La Plata Global Crossing Local Services, Inc.-Md Landline
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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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