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
347-945 A New York City Zone 05 NY WHPLNYGR1MD  132      
347-945 0 New York City Zone 05 NY WHPLNYGR1MD  132   2007-09-01   
347-945 1 New York City Zone 05 NY WHPLNYGR1MD  132   2007-09-01   
347-945 2 New York City Zone 05 NY WHPLNYGR1MD  132   2007-09-01   
347-945 3 New York City Zone 05 NY WHPLNYGR1MD  132   2007-09-01   
347-945 4 New York City Zone 05 NY WHPLNYGR1MD  132   2007-09-01   
347-947 3 New York City Zone 05 NY WHPLNYGR1MD  132   2012-04-10   
347-947 4 New York City Zone 05 NY WHPLNYGR1MD  132   2012-11-06   
347-947 9 New York City Zone 05 NY WHPLNYGR1MD  132   2011-10-04   
347-955 A New York City Zone 06 NY WHPLNYGR1MD  132      
347-955 4 New York City Zone 06 NY WHPLNYGR1MD  132   2011-11-13   
347-955 5 New York City Zone 06 NY WHPLNYGR1MD  132   2011-11-13   
347-963 4 New York City Zone 03 NY WHPLNYGR1MD  132   2006-11-18   
347-963 9 New York City Zone 03 NY WHPLNYGR1MD  132   2006-11-18   
347-964 A New York City Zone 05 NY WHPLNYGR1MD  132      
347-964 0 New York City Zone 05 NY WHPLNYGR1MD  132   2008-02-06   
347-964 1 New York City Zone 05 NY WHPLNYGR1MD  132   2008-02-19   
347-964 5 New York City Zone 05 NY WHPLNYGR1MD  132   2006-07-13   
347-964 6 New York City Zone 05 NY WHPLNYGR1MD  132   2006-07-13   
347-964 7 New York City Zone 05 NY WHPLNYGR1MD  132   2006-07-13   
347-980 A New York City Zone 05 NY WHPLNYGR1MD  132      
347-980 2 New York City Zone 05 NY WHPLNYGR1MD  132   2011-10-30   
347-985 A New York City Zone 06 NY WHPLNYGR1MD  132      
347-985 1 New York City Zone 06 NY WHPLNYGR1MD  132   2008-08-10   
347-985 2 New York City Zone 06 NY WHPLNYGR1MD  132   2008-08-10   
361-220 7 Victoria TX   564   2013-11-21   
361-579 7 Victoria TX   564   2012-05-11   
361-703 A Victoria TX CRCHTXTUXUY  564      
361-703 1 Victoria TX   564   2013-12-29   
361-703 2 Victoria TX   564   2013-12-29   
361-703 5 Victoria TX   564   2013-12-29   
361-894 A Victoria TX CRCHTXTUXUY  564      
361-894 6 Victoria TX   564   2007-01-10   
361-894 7 Victoria TX   564   2008-01-29   
361-894 8 Victoria TX   564   2008-01-29   
361-897 8 Bloomington TX   564   2022-05-20   
364-226 A Russellville KY OWBOKYMMAMD  464      
364-226 5 Russellville KY   464   2024-05-19   
405-220 4 Seminole OK   536   2007-03-16   
405-257 4 Wewoka OK   536   2007-03-16   
405-303 6 Seminole OK   536   2014-03-02   
405-320 5 Chickasha OK   536   2007-03-16   
405-331 A Pauls Valley OK ENIDOKMA7MD  536      
405-331 3 Pauls Valley OK   536   2014-03-02   
405-332 5 Stillwater OK   536   2014-03-02   
405-335 3 Wynnewood OK   536   2014-03-02   
405-337 2 Wewoka OK   536   2014-03-02   
405-337 4 Wewoka OK   536   2014-03-02   
405-338 9 Stillwater OK   536   2014-07-01   
405-547 6 Perkins OK   536   2007-01-10   

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

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