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.

Galena, IL

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
815-776 0 GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      
815-776 1 GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      
815-776 5 GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      
815-776 7 GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      
815-776 9 GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      
815-777 A GALNILGADS1  9329 ILLINOIS BELL TEL CO 634      

<< 1 2

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.