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: SNDGCA51CM3

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
858-943 9 Rancho Bernardo CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2012-05-25   
858-944 9 San Diego: Linda Vista DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2021-09-13   
858-947 8 Del Mar CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2007-10-27   
858-951 2 Rancho Santa Fe CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2019-02-19   
858-951 4 Rancho Santa Fe CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2019-02-19   
858-951 6 Rancho Santa Fe CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2017-11-02   
858-952 4 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2006-02-23   
858-956 4 Poway CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-08-25   
858-956 9 Poway CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-10-31   
858-987 2 San Diego: Linda Vista DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2015-09-16   
858-987 3 San Diego: Linda Vista DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2015-09-16   
858-997 7 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2007-11-22   
858-999 1 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-04-05   
858-999 4 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-04-05   
858-999 6 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-02-15   
858-999 7 La Jolla CA 6010 NEW CINGULAR WIRELESS PCS, LLC 732   2011-02-15   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.