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240 Area Code Prefixes Directory

Choose a prefix to view phone numbers and related information

Bandwidth.com Clec
Carrier

Coverage Area
Counties: Prince Georges, Washington,
Cities: Mount Rainier, Hagerstown, Rockville, Crofton

Peerless Network Of The District Of Columbia, Dc
Carrier

Coverage Area
Counties: Saint Marys,
Cities: Ridge, Indian Head, Waldorf, Mechanicsville, Nanjemoy

Cellco Partnership DBA Verizon Wireless
Carrier

Coverage Area
Counties: Montgomery, , Prince Georges, Howard, Frederick
Cities: Bethesda, Gaithersburg, Mount Rainier, Waldorf, Laurel, Leonardtown, Columbia, Silver Spring, Hancock, Frederick, Cabin John, Oxon Hill, Chevy Chase, Rockville

New Cingular Wireless PCS - DC
Carrier

Coverage Area
Counties: , Montgomery, Washington, Frederick
Cities: Cabin John, Waldorf, Bethesda, Hagerstown, Damascus, Frederick, Silver Spring, Chevy Chase, Rockville, Mechanicsville, Gaithersburg, Cumberland

Xo Maryland
Carrier

Coverage Area
Counties: , Charles, Saint Marys
Cities: Glenn Dale, Laurel, Chevy Chase, Gaithersburg, Waldorf, Sandy Spring, Poolesville, Upper Marlboro, La Plata, Leonardtown, Mechanicsville, Callaway, Damascus, Newburg, Brandywine, Hughesville, Ridge, Clinton, Nanjemoy, Indian Head

Core Communications
Carrier

Coverage Area
Counties: Garrett, Frederick, , Montgomery, Carroll
Cities: Oakland, Frederick, Leonardtown, Highfield, Grantsville, Waldorf, Hancock, Mccoole, Emmitsburg, Damascus, Gaithersburg, Bethesda, Mount Airy, Cumberland, College Park, Chevy Chase

Telcove Operations
Carrier

Coverage Area
Counties: Frederick, , Montgomery
Cities: Frederick, Ijamsville, Gaithersburg, Bethesda, Rockville

Omnipoint Communications Cap Operations
Carrier

Coverage Area
Counties: Washington, , Frederick, Prince Georges, Montgomery
Cities: Hagerstown, Laurel, Hyattsville, Rockville, Frederick, Silver Spring, Oxon Hill, Glenn Dale, Middletown, Mount Rainier, Myersville, Bethesda, Ashton

Peerless Network Of Maryland
Carrier

Coverage Area
Counties: , Saint Marys, Prince Georges
Cities: Poolesville, Ridge, Brandywine, Mount Rainier, Mechanicsville, Newburg, Damascus, Indian Head, Waldorf, Hughesville, Callaway, Laurel, Upper Marlboro, Leonardtown, Sandy Spring, Gaithersburg

Verizon Maryland
Carrier

Coverage Area
Counties: , Frederick, Washington, Anne Arundel, Garrett
Cities: Rockville, Laurel, Frederick, Beltsville, Kensington, Hagerstown, Clinton, Cumberland, Odenton, Myersville, Oakland, Chevy Chase, Hyattsville, Greenbelt, Gaithersburg, Silver Spring, Temple Hills, Adamstown, Lexington Park, Smithsburg

Cavalier Telephone Mid-atlantic
Carrier

Coverage Area
Counties: , Montgomery
Cities: Waldorf, Oxon Hill, Laurel, Hyattsville, Clinton, Upper Marlboro, Glenn Dale, Gaithersburg, Sandy Spring, Bethesda, Rockville, Kensington, Silver Spring, College Park

Allegiance Telecom
Carrier

Coverage Area
Counties: Prince Georges,
Cities: Mount Rainier, Gaithersburg, Rockville, Laurel, Sandy Spring, Glenn Dale

Broadwing Communications. LLC
Carrier

Coverage Area
Counties: , Prince Georges, Charles
Cities: Waldorf, Mount Rainier, Leonardtown, Rockville, La Plata, Gaithersburg, Laurel, Brandywine, Oxon Hill, Callaway, Chevy Chase, Upper Marlboro

Global Crossing Local Services-md
Carrier

Coverage Area
Counties: , Prince Georges, Charles
Cities: Hughesville, Mount Rainier, La Plata, Indian Head, Silver Spring, Upper Marlboro, Waldorf, Brandywine, Rockville, Gaithersburg, Sandy Spring, Damascus, Poolesville

Teleport Communications America - DC
Carrier

Coverage Area
Counties: , Saint Marys, Prince Georges
Cities: Newburg, Callaway, Mechanicsville, Hughesville, Leonardtown, Nanjemoy, Ridge, Mount Rainier

Paetec Communications
Carrier

Coverage Area
Counties: Montgomery,
Cities: Bethesda, Rockville, Kensington, Oxon Hill, Glenn Dale, College Park

Starpower Communications
Carrier

Coverage Area
Counties: , Prince Georges
Cities: Chevy Chase, Kensington, Mount Rainier, Glenn Dale, Gaithersburg, Callaway, Sandy Spring, Oxon Hill, Damascus, Waldorf

Level 3 Communications
Carrier

Coverage Area
Counties: , Allegany, Washington, Frederick, Howard, Baltimore City
Cities: Gaithersburg, Frostburg, College Park, Hagerstown, Sandy Spring, Oxon Hill, Frederick, Laurel, Hyattsville, Columbia, Waldorf, Baltimore, Cumberland

Comcast Phone Of Northern Maryland
Carrier

Coverage Area
Cities: Laurel, Thurmont, Oxon Hill, Kensington, Indian Head

AT&T; Local
Carrier

Coverage Area
Cities: Emmitsburg

Uscoc Of Cumberland DBA United States Cel Md
Carrier

Coverage Area
Counties: Washington, Garrett
Cities: Hagerstown, Oakland

Cavalier East LLC
Carrier

Coverage Area
Counties: , Prince Georges
Cities: Waldorf, Mount Rainier, Upper Marlboro, Gaithersburg, Chevy Chase, Laurel, Rockville

Ymax Communications Corp.
Carrier

Coverage Area
Counties: , Frederick
Cities: Clarksville, Frederick

Global Naps South
Carrier

Coverage Area
Cities: Kensington

Baltimore-washington Telephone (bwt)
Carrier

Coverage Area
Cities: Damascus

Teleport Communications America
Carrier

Coverage Area
Counties: Washington
Cities: Hagerstown

Mci Worldcom Communications
Carrier

Coverage Area
Cities: College Park, Chevy Chase, Rockville, Kensington

Us Lec Of Maryland
Carrier

Coverage Area
Counties: Frederick, , Washington
Cities: Frederick, Cabin John, Hyattsville, Capitol Heights, Oxon Hill, Hagerstown, Silver Spring, College Park, Glenn Dale, Upper Marlboro, Clinton, Gaithersburg

Leap Wireless Intl DBA Cricket Comm
Carrier

Coverage Area
Counties: , Frederick, Prince Georges
Cities: Rockville, Frederick, Waldorf, Mount Rainier, Chevy Chase

Dslnet Communications Va
Carrier

Coverage Area
Cities: Cabin John

Lumos Networks Inc. - VA
Carrier

Coverage Area
Counties: Washington
Cities: Hagerstown

Shentel Communications
Carrier

Coverage Area
Counties: Garrett
Cities: Oakland

Local Access LLC
Carrier

Coverage Area
Counties: , Prince Georges
Cities: Waldorf, Mount Rainier, Oxon Hill

Paetec Communications - DC
Carrier

Coverage Area
Cities: Laurel

365 Wireless
Carrier

Coverage Area
Counties: Frederick, Montgomery
Cities: Frederick, Bethesda

Tw Telecom Of Maryland LLC
Carrier

Coverage Area
Counties: Prince Georges,
Cities: Mount Rainier, Laurel

Metro PCS
Carrier

Coverage Area
Cities: Hyattsville

Broadvox-clec - DC
Carrier

Coverage Area
Cities: Cabin John

Halo Wireless Services
Carrier

Coverage Area
Counties: Frederick
Cities: Frederick

Mte DBA Mte Paging Network
Carrier

Coverage Area
Counties: Montgomery
Cities: Bethesda

Lightwave Communications
Carrier

Coverage Area
Cities: Silver Spring

The 240 area code is located in Baltimore, Maryland including Mount Rainier, Ridge and was originally put into service on February 27th 1999. Find whose number this is.

Recently Reported Numbers

(240) 488-5967Unknown

Fake credit and student loan services scam call by criminals phoning from India This is a fake credit and student loan services scam call by criminals phoning from India, trying to steal your credit card number, Social Security number, and personal information. There are hundreds of these India scams where they offer to lower the interest rates on a fake student loan that you do not have, con

(240) 342-3447Unknown

India scammer trying to steal my credit card and Social Security numbers East Indian calls me and asks for me by name (which many scammers do by looking up the names associated with phone numbers to try to gain your trust) and I can tell that he is speaking from a script, and he tells me that I am due a credit refund and he needs my Visa credit card number and Social Security number "for veri

(240) 858-8522Dangerous

Vehicle warranty

(240) 219-9395Unknown

India scammer trying to steal my credit card and Social Security numbers East Indian calls me and asks for me by name (which many scammers do by looking up the names associated with phone numbers to try to gain your trust) and I can tell that he is speaking from a script, and he tells me that I am due a credit refund and he needs my Visa credit card number and Social Security number "for veri

(240) 215-3656Unknown

Said she was a process server. About to be served papers at home. About debt from over 7 years ago. But I can settle it for half. Asked for information. Invoice number? Anything? Knew last 4 social. Mad that I kept asking for information. Said I’d call back. Called again, different lady. Asks for her name of company. Asked for license number. Told me she is a litigation firm. Daya247

(240) 512-6280Unknown

240-512-6280 called asked for my husband when I said can I take a message hung up called it back no answer

(240) 351-5321Unknown

Called mobile - no message - blocked

(240) 351-5321Unknown

Left a voice mail with no talking, but sounded like a room full of people talking on the phone.

(240) 436-2297Unknown

This is a fake charity fundraising scam! 99% of these unsolicited phone calls from charity fundraisers that pretend to raise money for veterans, police, firefighters, breast cancer, autism, and other seemingly worthy causes are ALL SCAMS!! If you want to donate to these causes, do your own research, research the Charity Navigator website, and you will find reputable charities that actually donate

(240) 436-2310Unknown

This is a fake charity fundraising scam! 99% of these unsolicited phone calls from charity fundraisers that pretend to raise money for veterans, police, firefighters, breast cancer, autism, and other seemingly worthy causes are ALL SCAMS!! If you want to donate to these causes, do your own research, research the Charity Navigator website, and you will find reputable charities that actually donate

Recently Unidentified numbers

240 area code numbers that might be spam, scams or that people have reported as unidentified callers

240-312-4187Cavalier Telephone Mid-atlantic
240-851-7274UNKNOWN
240-830-2794UNKNOWN
240-858-5742UNKNOWN
240-579-7169UNKNOWN
240-140-4817UNKNOWN
240-208-1579Peerless Network Of The District Of Columbia, Dc
240-207-6419Cavalier East LLC
240-285-9017Cellco Partnership DBA Verizon Wireless
240-156-3277UNKNOWN
240-779-7660Cavalier East LLC
240-394-8597New Cingular Wireless PCS - DC
240-121-7531UNKNOWN
240-171-9339UNKNOWN
240-730-9342UNKNOWN
240-603-8597Sprint Spectrum L.p.
240-843-8891Allegiance Telecom
240-504-3084Sprint Spectrum L.p.
240-894-3019UNKNOWN

Most searched numbers

Cell
All TimeThis Month
240-341-4559First seen 2011-10-30240-674-4007First seen 2019-09-12
240-614-7219First seen 2010-01-14240-302-7228First seen 2011-03-29
240-664-4103First seen 2019-07-14240-944-9000First seen 2010-05-18
240-767-9010First seen 2012-03-10240-997-1704First seen 2015-12-26
240-707-4882First seen 2018-11-08240-529-4711First seen 2017-05-03
Landline
All TimeThis Month
240-316-4786First seen 2013-06-06240-189-8734First seen 2015-04-28
240-561-2343First seen 2010-10-02240-267-3205First seen 2019-11-19
240-988-7512First seen 2012-01-06240-374-1949First seen 2011-07-28
240-269-7373First seen 2012-02-04240-389-2576First seen 2015-02-19
240-883-5438First seen 2011-05-31240-495-2391First seen 2014-06-08

Cities With coverage

CITY LIST
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