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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Switch: WASHDCDP8MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-235 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-381 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-455 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-490 A Washington Zone 1 DC 9748 AMERICAN MESSAGING SERVICES, LLC 236      
202-539 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-540 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-542 A Washington Zone 1 DC 9748 AMERICAN MESSAGING SERVICES, LLC 236      
202-599 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-618 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-630 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-643 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-656 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-668 A Washington Zone 1 DC 9748 AMERICAN MESSAGING SERVICES, LLC 236      
202-670 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-681 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-743 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-750 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-770 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-796 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-810 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-843 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-869 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-886 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-901 A Washington Zone 1 DC 9748 AMERICAN MESSAGING SERVICES, LLC 236      
202-922 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-935 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-963 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-964 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-984 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-987 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-991 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-996 A Washington Zone 1 DC 074F BANDWIDTH.COM CLEC, LLC - DC 236      
227-240 A Washington Zone 11 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-07-21   
227-249 A Washington Zone 4 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-09-14   
227-255 A Washington Zone 5 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236   2024-12-07   
227-263 A Waldorf MD 071F BANDWIDTH.COM CLEC, LLC - MD 236   2025-02-01   
240-200 A Washington Zone 2 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-428 A Washington Zone 10 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-502 A Washington Zone 3 MD 074F BANDWIDTH.COM CLEC, LLC - DC 236   2024-02-19   
240-621 A Washington Zone 11 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-623 A Washington Zone 4 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-630 A Washington Zone 2 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-670 A Washington Zone 3 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-673 A Washington Zone 2 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-853 A Laurel MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-932 A Washington Zone 14 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-937 A Gaithersburg MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-939 A Washington Zone 11 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-940 A Washington Zone 4 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-941 A Washington Zone 2 MD 071F BANDWIDTH.COM CLEC, LLC - MD 236      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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