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
484-990 4 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-990 5 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-990 6 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-990 7 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-990 8 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-990 9 Bethlehem PA PHLAPAMKX7X  228   2016-02-04   
484-998 A Center Point PA PHLAPAMKX7X  228      
484-998 2 Center Point PA PHLAPAMKX7X  228   2016-01-02   
484-998 6 Center Point PA PHLAPAMKX7X  228   2016-01-02   
484-998 9 Center Point PA PHLAPAMKX7X  228   2016-01-02   
501-527 6 Little Rock AR LTRKARZO7MD  528   2025-09-18   
501-559 8 Benton AR LTRKARZO7MD  528   2025-11-27   
501-561 7 Little Rock AR LTRKARZO7MD  528   2025-09-18   
501-576 7 Conway AR LTRKARZO7MD  528   2025-11-27   
501-582 5 Benton AR   528   2026-09-12   
501-582 6 Benton AR   528   2026-09-12   
501-582 7 Benton AR   528   2026-09-12   
501-629 A Little Rock AR LTRKARZO5MD  528      
501-629 9 Little Rock AR LTRKARZO5MD  528   2020-08-15   
501-781 8 Hot Springs AR LTRKARZO7MD  528   2025-11-27   
502-754 A Louisville KY LSVLKYAP52Z  462      
502-754 9 Louisville KY LSVLKYAP52Z  462   2020-09-17   
502-920 2 Louisville KY LSVLKYAP52Z  462   2025-12-08   
502-920 3 Louisville KY LSVLKYAP52Z  462   2025-12-08   
504-389 A New Orleans LA NWORLASD8MD  490      
504-389 8 New Orleans LA NWORLASD8MD  490   2021-12-03   
504-389 9 New Orleans LA NWORLASD8MD  490   2021-12-03   
504-981 1 New Orleans LA   490   2026-08-14   
504-981 2 New Orleans LA   490   2026-08-14   
504-981 3 New Orleans LA   490   2026-08-14   
505-418 A Albuquerque NM ALBQNM10X4X  664      
505-418 9 Albuquerque NM ALBQNM10X4X  664   2021-05-01   
505-524 A Albuquerque NM ALBQNM10X5X  664      
505-524 8 Albuquerque NM ALBQNM10X5X  664   2022-09-04   
505-524 9 Albuquerque NM ALBQNM10X5X  664   2022-09-04   
505-656 3 Albuquerque NM ALBQNM10X4X  664   2026-06-04   
505-656 4 Albuquerque NM ALBQNM10X4X  664   2026-06-04   
505-656 6 Albuquerque NM ALBQNM10X4X  664   2026-06-04   
505-656 7 Albuquerque NM ALBQNM10X4X  664   2026-06-04   
507-906 A Rochester MN ROCHMNHIX6X  620      
507-906 8 Rochester MN ROCHMNHIX6X  620   2023-05-11   
507-906 9 Rochester MN ROCHMNHIX6X  620   2023-05-11   
508-860 8 Worcester MA CMBRMABEQMD  128   2025-12-01   
508-924 0 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 1 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 2 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 3 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 5 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 7 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   
508-924 8 East Bridgewater MA CMBRMABEQMD  128   2016-05-12   

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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