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: PHLAPAMKXDX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
484-597 7 Catasauqua PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
484-597 8 Catasauqua PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
484-676 6 Philadelphia Suburban Zone 29 PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
484-676 9 Philadelphia Suburban Zone 29 PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
484-757 6 West Chester PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-222 1 Center Point PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-590 6 Chester Springs PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-596 6 Catasauqua PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-615 2 Center Point PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-805 2 Center Point PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   
610-827 8 Chester Springs PA 507J THE VOICE APPLICATION NETWORK, LLC 228   2016-09-11   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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