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The 301-783-XXXX area code prefix is located in Baltimore, Maryland including Indian Head, Chevy Chase and was originally put into service on February 4th 1994. Run a search and find out who's calling you now.

Recently Reported Numbers

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Recently Unidentified numbers

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

301-783-6932Level 3 Communications
301-783-1619Verizon Maryland
301-783-6471Verizon Maryland
301-783-5910Verizon Maryland
301-783-5561Verizon Maryland
301-783-7941Sprint Spectrum L.p.
301-783-7883Verizon Maryland
301-783-6344Verizon Maryland
301-783-1316Verizon Maryland
301-783-1508Verizon Maryland
301-783-3291Verizon Maryland
301-783-5392New Cingular Wireless PCS - DC
301-783-8504Verizon Maryland
301-783-6937New Cingular Wireless PCS - DC
301-783-8040Verizon Maryland
301-783-3530Verizon Maryland
301-783-8188Sprint Spectrum L.p.
301-783-7252Verizon Maryland
301-783-6254Verizon Maryland

Most searched numbers

Cell
All TimeThis Month
301-783-3338First seen 2010-01-20301-783-5870First seen 2019-03-04
301-783-1144First seen 2017-09-11301-783-5885First seen 2013-04-29
301-783-9025First seen 2012-12-11301-783-3821First seen 2010-07-17
301-783-6900First seen 2014-07-07301-783-7423First seen 2015-06-27
301-783-9228First seen 2013-07-11301-783-9228First seen 2017-10-08
Landline
All TimeThis Month
301-783-6117First seen 2018-09-22301-783-9299First seen 2012-02-25
301-783-1061First seen 2012-06-25301-783-9382First seen 2017-06-21
301-783-6500First seen 2016-06-06301-783-6117First seen 2015-12-19
301-783-7905First seen 2010-07-30301-783-1061First seen 2012-03-27
301-783-4369First seen 2011-12-04301-783-6500First seen 2013-10-24

Cities With coverage

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Adamstown
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Frederick
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Glen Echo
Glenn Dale
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Hughesville
Hyattsville
Indian Head
Issue
Keedysville
Kensington
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Myersville
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Oakland
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Patuxent River
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Rockville
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Temple Hills
Thurmont
Upper Marlboro
Valley Lee
Waldorf
Walkersville
Westernport
Williamsport