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: MCMBILXDX2X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-297 4 Galesburg IL 318J COMCAST IP PHONE, LLC 977   2011-09-30   
309-315 2 Galesburg IL 318J COMCAST IP PHONE, LLC 977   2014-08-04   
309-351 7 Galesburg IL 318J COMCAST IP PHONE, LLC 977   2008-07-15   
309-388 A Knoxville IL 318J COMCAST IP PHONE, LLC 977      
309-388 0 Knoxville IL 318J COMCAST IP PHONE, LLC 977      
309-421 A Macomb IL 318J COMCAST IP PHONE, LLC 977      
309-421 0 Macomb IL 318J COMCAST IP PHONE, LLC 977   2008-07-14   
309-421 3 Macomb IL 318J COMCAST IP PHONE, LLC 977   2014-02-21   
309-569 4 Bushnell IL 318J COMCAST IP PHONE, LLC 977   2008-07-15   
309-760 8 Monmouth IL 318J COMCAST IP PHONE, LLC 977   2017-10-06   
309-973 4 Galesburg IL 318J COMCAST IP PHONE, LLC 977   2014-07-23   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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