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: ELCNCA01DS0

Remotes:

Switch Switch name Switch type
BRWLCA11RS1  BRAWLEY  5BR 
CLPTCA11RS1  CALIPATRIA  5ER 
CYWLCA11RS2  COYOTE WELLS  5ER 
HLVLCA11RS3  HOLTVILLE  5BR 
IMPRCA11RS4  IMPERIAL  5BR 
NILDCA11RS5  NILAND  5BR 
NILDCA12RS6  BOMBAY BEACH  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
760-312 A El Centro CA 9740 PACIFIC BELL 732      
760-335 A El Centro CA 9740 PACIFIC BELL 732      
760-336 A El Centro CA 9740 PACIFIC BELL 732      
760-337 A El Centro CA 9740 PACIFIC BELL 732      
760-339 A El Centro CA 9740 PACIFIC BELL 732      
760-352 A El Centro CA 9740 PACIFIC BELL 732      
760-353 A El Centro CA 9740 PACIFIC BELL 732      
760-370 A El Centro CA 9740 PACIFIC BELL 732      
760-482 A El Centro CA 9740 PACIFIC BELL 732      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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