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: PHLAPAFGXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
267-831 A Philadelphia Zone 1 PA 073H TELNYX LLC 228      
267-831 1 Philadelphia Zone 1 PA 073H TELNYX LLC 228   2017-07-20   
302-291 0 Lewes DE 073H TELNYX LLC 228   2018-06-05   
302-291 5 Lewes DE 073H TELNYX LLC 228   2021-09-16   
445-222 8 Pennsburg PA 073H TELNYX LLC 228   2018-11-24   
445-666 8 Green Lane PA 073H TELNYX LLC 228   2018-11-24   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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