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.

Switch: WASHDCSW01Z

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
703-504 2 Washington Zone 8 VA 829J PAETEC ITEL, LLC 236   2004-09-20   
703-662 7 Dulles VA 829J PAETEC ITEL, LLC 236   2004-09-05   
703-722 5 Arcola VA 829J PAETEC ITEL, LLC 236   2006-05-07   
703-743 8 Haymarket VA 829J PAETEC ITEL, LLC 236   2009-05-01   
703-752 A Washington Zone 17 VA 829J PAETEC ITEL, LLC 236   2025-04-02   
703-766 A Washington Zone 19 VA 829J PAETEC ITEL, LLC 236   2025-04-02   
703-778 A Washington Zone 8 VA 829J PAETEC ITEL, LLC 236   2025-04-02   
703-910 A Occoquan VA 829J PAETEC ITEL, LLC 236   2025-04-02   
703-910 9 Occoquan VA 829J PAETEC ITEL, LLC 236   2006-05-05   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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