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: 425J CSC WIRELESS, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
540-787 8 Pearisburg VA RONKVALKY0X  244   2019-06-01   
540-787 9 Pearisburg VA RONKVALKY0X  244   2019-06-28   
551-286 0 Hackensack NJ PRNYNJFPX0X  224   2019-09-20   
551-286 4 Hackensack NJ PRNYNJFPX0X  224   2019-09-20   
551-286 5 Hackensack NJ PRNYNJFPX0X  224   2019-09-20   
551-298 A Jersey City NJ PRNYNJFPX0X  224      
551-298 2 Jersey City NJ PRNYNJFPX0X  224   2019-05-02   
551-298 6 Jersey City NJ PRNYNJFPX0X  224   2019-07-15   
551-298 7 Jersey City NJ PRNYNJFPX0X  224   2019-08-15   
551-298 8 Jersey City NJ PRNYNJFPX0X  224   2019-06-20   
551-298 9 Jersey City NJ PRNYNJFPX0X  224   2019-06-20   
551-314 4 Cliffside NJ PRNYNJFPX0X  224   2020-01-05   
551-314 5 Cliffside NJ PRNYNJFPX0X  224   2020-01-10   
551-314 8 Cliffside NJ PRNYNJFPX0X  224   2020-01-10   
551-314 9 Cliffside NJ PRNYNJFPX0X  224   2020-01-10   
551-340 7 Hackensack NJ PRNYNJFPX0X  224   2019-05-26   
551-417 9 Jersey City NJ PRNYNJFPX0X  224   2025-05-02   
559-209 A Fresno CA FRSNCA01Y1X  728      
559-209 2 Fresno CA FRSNCA01Y1X  728   2020-04-05   
563-296 A Davenport IA DVNPIADTY0X  634      
563-296 2 Davenport IA DVNPIADTY0X  634   2020-09-21   
567-304 A Toledo OH TOLDOH21Y0X  326      
567-304 2 Toledo OH TOLDOH21Y0X  326   2020-07-11   
567-306 A Mansfield OH MNFDOHXAY0X  923      
567-306 2 Mansfield OH MNFDOHXAY0X  923   2020-07-11   
573-540 A Columbia MO CLMAMOXAY0X  521      
573-540 2 Columbia MO CLMAMOXAY0X  521   2020-07-23   
574-352 A Elkhart IN EKHTINXAY0X  332      
574-352 2 Elkhart IN EKHTINXAY0X  332   2020-08-17   
575-206 A Texico NM ALBQNMMAY0X  664      
575-206 0 Texico NM ALBQNMMAY0X  664   2019-07-03   
575-206 2 Texico NM ALBQNMMAY0X  664   2019-05-11   
580-414 A Weatherford OK ENIDOKMAX0X  536      
580-414 0 Weatherford OK ENIDOKMAX0X  536   2019-06-28   
580-414 2 Weatherford OK ENIDOKMAX0X  536   2019-05-17   
585-514 A Rochester NY ROCHNYXAY0X  974      
585-514 2 Rochester NY ROCHNYXAY0X  974   2020-03-16   
603-255 A Manchester NH MNCHNHCOY0X  122      
603-255 2 Manchester NH MNCHNHCOY0X  122   2020-04-17   
605-403 A Sioux Falls SD SXFLSDCOY0X  640      
605-403 2 Sioux Falls SD SXFLSDCOY0X  640   2019-07-20   
606-229 A Stone KY WNCHKYMAY0X  466      
606-229 0 Stone KY WNCHKYMAY0X  466   2019-06-26   
606-229 2 Stone KY WNCHKYMAY0X  466   2019-05-12   
606-800 6 Stone KY WNCHKYMAY0X  466   2024-07-29   
606-800 7 Stone KY WNCHKYMAY0X  466   2024-08-11   
607-314 A Binghamton NY BNGHNYHYY0X  138      
607-314 2 Binghamton NY BNGHNYHYY0X  138   2019-12-06   
608-690 A Madison WI MDSNWI11Y0X  354      
608-690 2 Madison WI MDSNWI11Y0X  354   2020-08-31   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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