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: 612K CSC VOICE, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
707-407 3 Eureka CA   722   2009-09-08   
707-497 6 Eureka CA   722   2007-02-16   
707-506 5 Rio Dell CA   722   2007-02-16   
707-607 A Ferndale CA EURKCA01DMD  722      
707-607 3 Ferndale CA   722   2014-04-07   
707-617 2 Fortuna CA   722   2014-03-23   
707-630 A Arcata CA EURKCA01DMD  722      
707-630 3 Arcata CA   722   2014-04-07   
707-630 4 Arcata CA   722   2014-04-07   
707-630 5 Arcata CA   722   2014-04-07   
707-633 5 Arcata CA   722   2007-02-16   
707-633 6 Arcata CA   722   2007-02-16   
707-667 6 Blue Lake CA   722   2007-02-16   
707-677 2 Trinidad CA   722   2014-03-03   
707-677 5 Trinidad CA   722   2007-02-16   
707-682 6 Fortuna CA   722   2007-02-16   
707-686 A Loleta CA EURKCA01DMD  722      
707-686 3 Loleta CA   722   2014-04-07   
707-733 8 Loleta CA   722   2007-02-16   
707-768 5 Hydesville CA   722   2007-02-16   
707-783 A Rio Dell CA EURKCA01DMD  722      
707-783 3 Rio Dell CA   722   2014-04-07   
707-786 7 Ferndale CA   722   2007-02-16   
707-798 A Eureka CA EURKCA01DMD  722      
707-798 1 Eureka CA   722   2014-01-03   
707-798 2 Eureka CA   722   2014-01-03   
707-798 3 Eureka CA   722   2014-01-03   
707-798 4 Eureka CA   722   2014-01-03   
707-798 5 Eureka CA   722   2014-01-03   
707-798 6 Eureka CA   722   2014-01-03   
707-844 A Blue Lake CA EURKCA01DMD  722      
707-844 3 Blue Lake CA   722   2014-04-07   
707-851 A Hydesville CA EURKCA01DMD  722      
707-851 3 Hydesville CA   722   2014-04-07   
718-450 3 New York City Zone 03 NY HCVLNYAHDS5  132   2004-03-08   
718-450 8 New York City Zone 03 NY HCVLNYAHDS5  132   2006-11-18   
718-483 8 New York City Zone 06 NY HCVLNYAHDS5  132   2006-10-16   
718-483 9 New York City Zone 06 NY HCVLNYAHDS5  132   2006-10-16   
718-513 0 New York City Zone 07 NY HCVLNYAHDS5  132   2004-10-14   
718-513 1 New York City Zone 07 NY HCVLNYAHDS5  132   2004-10-14   
718-513 3 New York City Zone 07 NY HCVLNYAHDS5  132   2004-10-14   
718-513 4 New York City Zone 07 NY HCVLNYAHDS5  132   2003-09-03   
718-513 6 New York City Zone 07 NY HCVLNYAHDS5  132   2004-10-14   
718-552 2 New York City Zone 06 NY HCVLNYAHDS5  132   2006-05-08   
718-576 6 New York City Zone 06 NY HCVLNYAHDS5  132   2011-03-04   
718-618 0 New York City Zone 03 NY HCVLNYAHDS5  132   2006-07-08   
718-618 7 New York City Zone 03 NY HCVLNYAHDS5  132   2006-06-17   
718-676 A New York City Zone 07 NY WHPLNYGR1MD  132      
718-676 0 New York City Zone 07 NY WHPLNYGR1MD  132      
718-676 1 New York City Zone 07 NY WHPLNYGR1MD  132      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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