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: GRDNCA02KMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
213-547 A Los Angeles: DA 01 CA 7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2021-01-29   
213-789 A Los Angeles: DA 02 CA 7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2021-01-11   
310-565 A El Segundo CA 7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730      
323-914 A Montebello CA 7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730      
951-556 A Arlington CA 7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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