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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

OCN: 9211 VERIZON WASHINGTON DC, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
202-956 6 Washington Zone 1 DC   236      
202-956 7 Washington Zone 1 DC   236      
202-962 A Washington Zone 1 DC WASHDCMODS1  236      
202-965 A Washington Zone 1 DC WASHDCGTDS0  236      
202-966 A Washington Zone 1 DC WASHDCWLDS0  236      
202-973 A Washington Zone 1 DC WASHDCMTDS0  236      
202-974 A Washington Zone 1 DC WASHDCMTDS0  236      
202-986 A Washington Zone 1 DC WASHDCDPDS2  236      

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

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