Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-248 A Washington Zone 1 DC 8831 STARPOWER COMMUNICATIONS, LLC - DC 236      
202-249 A Washington Zone 1 DC 8831 STARPOWER COMMUNICATIONS, LLC - DC 236      
202-250 A Washington Zone 1 DC 8831 STARPOWER COMMUNICATIONS, LLC - DC 236      
202-766 A Washington Zone 1 DC 8831 STARPOWER COMMUNICATIONS, LLC - DC 236      
240-241 A Washington Zone 13 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-242 A Washington Zone 11 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-244 A Washington Zone 16 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-245 A Washington Zone 14 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-246 A Gaithersburg MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-293 A Washington Zone 12 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-317 A Lexington Park-Great Mills MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-342 A Ashton MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-392 A Washington Zone 5 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-668 A Damascus MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
240-682 A Waldorf MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-531 A Washington Zone 4 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-915 A Washington Zone 2 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-917 A Washington Zone 10 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-920 A Washington Zone 3 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-971 A Washington Zone 6 MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
301-974 A Laurel MD 8832 STARPOWER COMMUNICATIONS, LLC - MD 236      
571-641 A Washington Zone 17 VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-347 A Washington Zone 8 VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-349 A Washington Zone 19 VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-372 A Engleside VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-389 A Washington Zone 19 VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-434 A Herndon VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-656 A Manassas VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-829 A Braddock VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-835 A Washington Zone 8 VA 8830 STARPOWER COMMUNICATIONS, LLC - VA 236      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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