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: YBCYCA01DS0

Remotes:

Switch Switch name Switch type
BEALCA11RS0  BEALE AFB  RSC 
LVOKCA11RS0  LIVE OAK (SUTTER)  RSC 
MRDNCA11RS0  MERIDIAN  RSC 
NYUBCA11RS0  NORTH YUBA  RSC 
SMAVCA11RS0  SMARTVILLE  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-671 A Marysville CA 9740 PACIFIC BELL 726      
530-673 A Marysville CA 9740 PACIFIC BELL 726      
530-674 A Marysville CA 9740 PACIFIC BELL 726      
530-751 A Marysville CA 9740 PACIFIC BELL 726      
530-755 A Marysville CA 9740 PACIFIC BELL 726      
530-790 A Marysville CA 9740 PACIFIC BELL 726      
530-821 A Marysville CA 9740 PACIFIC BELL 726      
530-822 A Marysville CA 9740 PACIFIC BELL 726      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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