Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 321J HD CARRIER LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
943-319 9 Atlanta Northeast GA   438   2026-11-16   
943-325 2 Atlanta South GA   438   2026-11-16   
943-325 3 Atlanta South GA   438   2026-11-16   
943-468 8 Atlanta Northeast GA   438   2026-11-16   
945-440 4 Plano TX DLLSTX97X8X  552   2026-07-18   
945-440 5 Plano TX DLLSTX97X8X  552   2026-07-18   
945-440 6 Plano TX DLLSTX97X8X  552   2026-07-18   
945-949 A Dallas TX DLLSTX97X8X  552   2025-08-16   
945-949 7 Dallas TX DLLSTX97X8X  552   2025-08-16   
945-949 8 Dallas TX DLLSTX97X8X  552   2025-08-16   
945-949 9 Dallas TX DLLSTX97X8X  552   2025-08-16   
947-276 4 Pontiac MI SFLDMIMKCMD  340   2026-03-27   
947-276 5 Pontiac MI SFLDMIMKCMD  340   2026-03-27   
947-281 3 Southfield MI SFLDMIMKCMD  340   2026-03-27   
948-241 8 Norfolk Zone 3 VA NRFLVAJYEMD  252   2026-02-09   
948-241 9 Norfolk Zone 3 VA NRFLVAJYEMD  252   2026-02-09   
949-799 5 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 6 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 7 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 8 Rancho Viejo CA LSANCARCY1X  730   2016-06-12   
949-799 9 Rancho Viejo CA LSANCARCY1X  730   2017-03-02   
949-895 3 Irvine CA LSANCARCY1X  730   2026-06-01   
949-895 4 Irvine CA LSANCARCY1X  730   2026-06-01   
949-895 5 Irvine CA LSANCARCY1X  730   2026-06-01   
949-895 6 Irvine CA LSANCARCY1X  730   2026-06-01   
951-262 0 Hemet: Anza DA CA LSANCARCY1X  730   2009-03-01   
951-262 2 Hemet: Anza DA CA LSANCARCY1X  730   2009-03-01   
951-262 3 Hemet: Anza DA CA LSANCARCY1X  730   2009-03-01   
951-380 3 Hemet: Hemet DA CA LSANCARCY1X  730   2014-08-16   
951-387 7 Murrieta CA LSANCARCY1X  730   2014-09-02   
951-395 7 Temecula CA LSANCARCY1X  730   2014-08-16   
951-423 3 Perris CA LSANCARCY1X  730   2014-09-03   
951-799 A Hemet: Anza DA CA LSANCARCY1X  730      
951-799 9 Hemet: Anza DA CA LSANCARCY1X  730   2019-06-14   
951-832 2 Perris CA LSANCARCY1X  730   2026-05-15   
951-832 3 Perris CA LSANCARCY1X  730   2026-05-15   
951-832 4 Perris CA LSANCARCY1X  730   2026-05-15   
951-832 5 Perris CA LSANCARCY1X  730   2026-05-15   
951-981 1 Lakeview-Nuevo CA LSANCARCY1X  730   2016-06-12   
951-981 7 Lakeview-Nuevo CA LSANCARCY1X  730   2016-06-12   
951-981 8 Lakeview-Nuevo CA LSANCARCY1X  730   2016-06-12   
951-981 9 Lakeview-Nuevo CA LSANCARCY1X  730   2016-06-12   
951-999 6 Moreno CA LSANCARCY1X  730   2014-08-16   
954-350 3 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 4 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 5 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 6 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 7 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 8 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-350 9 Hollywood FL MIAUFLWSSMD  46017   2016-08-27   
954-988 3 Hollywood FL MIAUFLWSSMD  46017   2016-06-11   
954-988 4 Hollywood FL MIAUFLWSSMD  46017   2016-06-11   
954-988 7 Hollywood FL MIAUFLWSSMD  46017   2016-06-11   
954-988 8 Hollywood FL MIAUFLWSSMD  46017   2016-06-11   
954-988 9 Hollywood FL MIAUFLWSSMD  46017   2016-06-11   
956-809 A Harlingen TX HRLNTXDU9MD  568      
956-809 8 Harlingen TX HRLNTXDU9MD  568   2023-05-11   
956-809 9 Harlingen TX HRLNTXDU9MD  568   2023-05-11   
959-223 A Hartford CT HRFRCT0398Z  920      
959-223 9 Hartford CT HRFRCT0398Z  920   2021-06-05   
970-907 4 Fort Collins CO DNVRCOMA32Z  656   2025-11-27   
970-907 5 Fort Collins CO DNVRCOMA32Z  656   2025-11-27   
970-907 6 Fort Collins CO DNVRCOMA32Z  656   2025-11-27   
970-982 2 Greeley CO DNVRCOMA32Z  656   2025-11-28   
970-982 3 Greeley CO DNVRCOMA32Z  656   2025-11-28   
970-982 4 Greeley CO DNVRCOMA32Z  656   2025-11-28   
971-342 2 Cannon Beach OR PTLDOR13XEX  672   2020-09-27   
971-379 A Portland OR PTLDOR13XEX  672      
971-379 8 Portland OR PTLDOR13XEX  672   2020-08-09   
971-379 9 Portland OR PTLDOR13XEX  672   2020-08-09   
971-551 A Portland OR   672   2026-12-10   
971-551 4 Portland OR   672   2026-12-10   
971-551 5 Portland OR   672   2026-12-10   
971-551 6 Portland OR   672   2026-12-10   
972-328 6 Dallas TX DLLSTX97X8X  552   2026-03-14   
972-328 7 Dallas TX DLLSTX97X8X  552   2026-03-14   
972-328 8 Dallas TX DLLSTX97X8X  552   2026-03-14   
972-688 A Plano TX DLLSTX97XCX  552      
972-688 8 Plano TX DLLSTX97XCX  552   2021-12-26   
972-688 9 Plano TX DLLSTX97XCX  552   2021-12-26   
973-218 3 Millburn NJ NWRKNJ0298Z  224   2016-05-19   
973-542 3 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-662 5 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-730 3 Morristown NJ NWRKNJ0298Z  224   2025-12-11   
973-730 4 Morristown NJ NWRKNJ0298Z  224   2025-12-11   
973-730 5 Morristown NJ NWRKNJ0298Z  224   2025-12-11   
973-730 6 Morristown NJ NWRKNJ0298Z  224   2025-12-11   
973-798 3 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-798 5 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-840 3 Caldwell NJ NWRKNJ0298Z  224   2016-05-19   
973-922 5 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-922 7 Nutley NJ NWRKNJ0298Z  224   2016-05-19   
973-924 3 Millburn NJ NWRKNJ0298Z  224   2016-05-19   
975-880 0 Kansas City MO   524   2026-11-23   
975-880 2 Kansas City MO   524   2026-11-23   
975-880 3 Kansas City MO   524   2026-11-23   
975-880 4 Kansas City MO   524   2026-11-23   
978-288 2 Beverly MA CMBRMABEQMD  128   2016-04-11   
978-288 3 Beverly MA CMBRMABEQMD  128   2016-04-11   
978-288 4 Beverly MA CMBRMABEQMD  128   2016-04-11   

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Last updated: Sun, 01 Nov 2026 02:11:49 UTC

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