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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
240-720 Montgomery Gaithersburg Global Crossing Local Services, Inc.-Md Landline
240-722 Montgomery Sandy Spring Global Crossing Local Services, Inc.-Md Landline
240-723 Montgomery Silver Spring Cellco Partnership Dba Verizon Wireless - MD Landline
240-724 District of Columbia Mount Rainier Cavalier East Llc - MD Landline
240-725 Saint Marys Lexington Park Verizon Maryland, Inc. Landline
240-727 Allegany Cumberland New Cingular Wireless Pcs, Llc - DC Wireless
240-731 Montgomery Rockville New Cingular Wireless Pcs, Llc - DC Wireless
240-734 Washington Hagerstown Bandwidth.com Clec, Llc - MD Landline
240-737 District of Columbia Mount Rainier Cavalier East Llc - MD Landline
240-740 Montgomery Washington Zone 10 Atlantech Online, Inc. - MD Landline
240-743 Montgomery Oxon Hill Local Access Llc - MD Landline
240-744 Montgomery Mount Rainier Broadwing Communications. Llc - MD Landline
240-745 Montgomery Damascus Xo Maryland, Llc Landline
240-747 Montgomery Mount Rainier Cavalier East Llc - MD Landline
240-750 Montgomery Gaithersburg New Cingular Wireless Pcs, Llc - DC Wireless
240-751 Montgomery Gaithersburg Telcove Operations, Inc. - MD Landline
240-752 Montgomery Bethesda Telcove Operations, Inc. - MD Landline
240-753 Montgomery Rockville Telcove Operations, Inc. - MD Landline
240-754 Charles Waldorf Level 3 Communications, Llc - MD Landline
240-755 Howard Laurel Comcast Phone Of Northern Maryland, Inc. - MD Landline
240-757 Fairfax Mount Rainier Peerless Network Of Maryland, Llc Landline
240-762 Montgomery Mount Rainier Cellco Partnership Dba Verizon Wireless - MD Wireless
240-764 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-765 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-766 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-767 District of Columbia Capitol Heights Cavalier East Llc - MD Landline
240-770 Isle of Wight Oxon Hill Comcast Phone Of Northern Maryland, Inc. - MD Landline
240-772 Frederick Frederick Cellco Partnership Dba Verizon Wireless - MD Wireless
240-773 Montgomery Rockville Verizon Maryland, Inc. Landline
240-776 Charles La Plata Broadwing Communications. Llc - MD Landline
240-777 Montgomery Rockville Verizon Maryland, Inc. Landline
240-778 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-779 Montgomery Sandy Spring Cavalier East Llc - MD Landline
240-780 Montgomery Gaithersburg Broadwing Communications. Llc - MD Landline
240-782 Montgomery Damascus Global Crossing Local Services, Inc.-Md Landline
240-783 Montgomery Bethesda Mte, Inc. Dba Mte Paging Network Wireless
240-784 Frederick Myersville Omnipoint Communications Cap Operations, Llc Wireless
240-786 District of Columbia Laurel Broadwing Communications. Llc - MD Landline
240-787 District of Columbia Brandywine Broadwing Communications. Llc - MD Landline
240-788 District of Columbia Oxon Hill Broadwing Communications. Llc - MD Landline
240-790 District of Columbia Mount Rainier Broadwing Communications. Llc - MD Landline
240-793 Montgomery Gaithersburg Sprint Spectrum L.p. Wireless
240-794 District of Columbia Callaway Broadwing Communications. Llc - MD Landline
240-800 Montgomery Chevy Chase Core Communications, Inc. - MD Landline
240-802 Montgomery Bethesda 365 Wireless, Llc Wireless
240-803 Allegany Cumberland New Cingular Wireless Pcs, Llc - DC Wireless
240-804 Charles Newburg Xo Maryland, Llc Landline
240-812 Montgomery Poolesville Global Crossing Local Services, Inc.-Md Landline
240-813 Montgomery Gaithersburg Atx Telecommunications Services, Ltd Landline
240-818 Washington Smithsburg Verizon Maryland, Inc. Landline
240-821 Montgomery Silver Spring Lightwave Communications, Llc - MD Landline
240-823 District of Columbia Brandywine Xo Maryland, Llc Landline
240-826 Montgomery Rockville Verizon Maryland, Inc. Landline
240-832 Montgomery Bethesda Sprint Spectrum L.p. Wireless
240-833 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-837 Charles Hughesville Xo Maryland, Llc Landline
240-838 Prince Georges Oxon Hill Omnipoint Communications Cap Operations, Llc Wireless
240-839 Montgomery Silver Spring Cellco Partnership Dba Verizon Wireless - MD Wireless
240-841 Howard Laurel Allegiance Telecom, Inc. - MD Landline
240-842 Howard Glenn Dale Allegiance Telecom, Inc. - MD Landline
240-843 Not available. College Park Allegiance Telecom, Inc. - MD Landline
240-844 District of Columbia Ridge Xo Maryland, Llc Landline
240-845 Montgomery Chevy Chase Xo Maryland, Llc Landline
240-846 District of Columbia Clinton Xo Maryland, Llc Landline
240-848 Montgomery Gaithersburg Sprint Spectrum L.p. Wireless
240-855 Montgomery Cabin John Sprint Spectrum L.p. Wireless
240-857 Prince Georges Mount Rainier Level 3 Telecom Of Maryland, Llc - MD Landline
240-863 Montgomery Laurel Level 3 Telecom Of Maryland, Llc - MD Landline
240-864 Montgomery Rockville Cavalier East Llc - MD Landline
240-865 Baltimore (city) Baltimore Level 3 Communications, Llc - 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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