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.
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OCN: 551G NUSO, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
610-553 8 Philadelphia Suburban Zone 17 PA PHLAPAMKGMD  228   2016-09-23   
610-557 9 Philadelphia Suburban Zone 22 PA PHLAPAMKGMD  228   2018-11-07   
610-579 8 Philadelphia Suburban Zone 10 PA PHLAPAMKGMD  228   2016-09-24   
610-673 1 Philadelphia Suburban Zone 26 PA PHLAPAMKGMD  228   2016-09-23   
610-673 2 Philadelphia Suburban Zone 26 PA PHLAPAMKGMD  228   2016-09-23   
610-723 5 Philadelphia Suburban Zone 22 PA PHLAPAMKGMD  228   2018-11-07   
610-723 8 Philadelphia Suburban Zone 22 PA PHLAPAMKGMD  228   2016-09-23   
610-723 9 Philadelphia Suburban Zone 22 PA PHLAPAMKGMD  228   2016-09-23   
610-833 0 Philadelphia Suburban Zone 11 PA PHLAPAMKGMD  228   2018-10-29   
610-833 9 Philadelphia Suburban Zone 11 PA PHLAPAMKGMD  228   2016-09-23   
610-851 5 Northampton PA PHLAPAMKGMD  228   2016-09-23   
610-851 6 Northampton PA PHLAPAMKGMD  228   2016-09-23   
610-893 0 Philadelphia Suburban Zone 28 PA PHLAPAMKGMD  228   2018-11-07   
610-893 8 Philadelphia Suburban Zone 28 PA PHLAPAMKGMD  228   2018-11-07   
610-922 0 Philadelphia Suburban Zone 25 PA PHLAPAMKGMD  228   2018-11-07   
610-922 3 Philadelphia Suburban Zone 25 PA PHLAPAMKGMD  228   2016-09-23   
610-922 5 Philadelphia Suburban Zone 25 PA PHLAPAMKGMD  228   2016-09-23   
610-922 9 Philadelphia Suburban Zone 25 PA PHLAPAMKGMD  228   2018-11-07   
610-936 A Bethlehem PA PHLAPAMKGMD  228      
610-936 1 Bethlehem PA PHLAPAMKGMD  228   2018-09-01   
610-957 0 Philadelphia Suburban Zone 14 PA PHLAPAMKGMD  228   2016-09-23   
610-957 1 Philadelphia Suburban Zone 14 PA PHLAPAMKGMD  228   2016-09-23   
612-383 0 Twin Cities MN MPLSMNDTX7Y  628   2018-04-14   
612-405 A Twin Cities MN MPLSMNDTX7Y  628      
612-405 1 Twin Cities MN MPLSMNDTX7Y  628   2014-08-07   
614-914 A Columbus OH CLMBOH1119Z  324      
614-914 1 Columbus OH CLMBOH1119Z  324   2013-01-25   
615-997 A Nashville TN NSVLTNMTY0Y  470      
618-331 3 Carbondale IL CRDLILXE1MD  362   2018-03-07   
618-605 A Carbondale IL CRDLILXE1MD  362      
618-605 1 Carbondale IL CRDLILXE1MD  362   2013-05-08   
618-879 A Olney IL OLNYILXENMD  978      
618-879 3 Olney IL OLNYILXENMD  978   2013-05-18   
619-359 A San Diego: San Diego DA CA SNDGCA0240Z  732      
619-359 1 San Diego: San Diego DA CA SNDGCA0240Z  732   2013-01-04   
619-539 2 San Diego: San Diego DA CA SNDGCA0240Z  732   2018-03-06   
646-791 A New York City Zone 01 NY NYCMNY37BMD  132      
646-791 1 New York City Zone 01 NY NYCMNY37BMD  132   2014-03-19   
646-904 4 New York City Zone 01 NY NYCMNY37BMD  132   2017-06-07   
646-904 5 New York City Zone 01 NY NYCMNY37BMD  132   2017-06-07   
646-906 8 New York City Zone 01 NY NYCMNY37BMD  132   2018-11-21   
646-906 9 New York City Zone 01 NY NYCMNY37BMD  132   2018-11-21   
646-956 A New York City Zone 01 NY NYCMNY37BMD  132      
646-956 1 New York City Zone 01 NY NYCMNY37BMD  132   2016-10-05   
646-956 2 New York City Zone 01 NY NYCMNY37BMD  132   2016-10-05   
646-956 3 New York City Zone 01 NY NYCMNY37BMD  132   2016-10-05   
646-956 4 New York City Zone 01 NY NYCMNY37BMD  132   2016-10-05   
646-956 5 New York City Zone 01 NY NYCMNY37BMD  132   2016-10-05   
661-448 A Bakersfield: Main DA CA BKFDCA11RMD  734      
661-448 1 Bakersfield: Main DA CA BKFDCA11RMD  734   2012-12-30   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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