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.

OCN: 6155 GREEN HILLS TELECOMMUNICATIONS SERVICES

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
660-203 A Alma MO NRBRMO010MD  524   2025-01-24   
660-203 1 Alma MO NRBRMO010MD  524   2025-01-24   
660-214 9 Chillicothe MO CHLCMOMI7MD  524   2016-11-18   
660-345 A Braymer MO BRYMMO01RS0  524      
660-345 6 Braymer MO BRYMMO01RS0  524   2016-09-04   
660-593 A Norborne MO NRBRMO010MD  524      
660-593 0 Norborne MO NRBRMO010MD  524      
660-593 2 Norborne MO NRBRMO010MD  524      
660-593 3 Norborne MO NRBRMO010MD  524      
816-465 4 Hamilton MO NRBRMO010MD  524   2016-09-04   
816-586 1 Kingston MO NRBRMO010MD  524   2016-09-04   

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

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