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: LSBGVALBX7X

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
571-918 0 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2006-12-04   
571-918 4 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2007-08-08   
571-919 4 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2014-09-13   
703-443 4 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2016-12-21   
703-687 3 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2014-01-22   
703-687 4 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2013-05-13   
703-936 5 Leesburg VA 318J COMCAST IP PHONE, LLC 246   2019-01-29   
826-218 A Stanley VA 318J COMCAST IP PHONE, LLC 246      
826-218 6 Stanley VA 318J COMCAST IP PHONE, LLC 246   2023-05-20   
826-222 5 Brokenburg VA 318J COMCAST IP PHONE, LLC 246   2022-07-15   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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