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: 732J NUSO, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
478-425 9 Macon GA   446   2025-06-09   
478-447 8 Macon GA MACOGAST4MD  446   2024-07-21   
478-775 7 Macon GA MACOGAST4MD  446   2024-07-21   
479-496 A Fort Smith AR FTSMAR085MD  526      
479-496 1 Fort Smith AR FTSMAR085MD  526   2023-04-13   
479-504 A Bentonville AR FTSMAR086MD  526      
479-504 1 Bentonville AR FTSMAR086MD  526   2023-05-06   
479-519 7 Bentonville AR FTSMAR086MD  526   2023-12-03   
479-545 0 Fort Smith AR FTSMAR085MD  526   2024-09-19   
480-996 0 Phoenix AZ PHNXAZMAX8Z  666   2024-04-29   
501-480 A Little Rock AR LTRKARFRXWZ  528      
501-480 1 Little Rock AR LTRKARFRXWZ  528   2022-11-21   
501-480 6 Little Rock AR LTRKARFRXWZ  528   2023-12-25   
501-480 7 Little Rock AR LTRKARFRXWZ  528   2023-12-25   
501-480 8 Little Rock AR LTRKARFRXWZ  528   2024-06-29   
501-480 9 Little Rock AR LTRKARFRXWZ  528   2024-06-29   
501-527 4 Little Rock AR   528   2025-08-24   
502-679 A Louisville KY LSVLKY188MD  462      
502-679 1 Louisville KY LSVLKY188MD  462   2023-04-02   
502-790 8 Louisville KY   462   2025-08-18   
502-790 9 Louisville KY   462   2025-08-18   
502-826 1 Louisville KY LSVLKY188MD  462   2024-07-30   
502-826 2 Louisville KY LSVLKY188MD  462   2024-07-30   
502-856 2 Louisville KY CMVLKYXABMD  462   2025-01-04   
502-856 4 Louisville KY CMVLKYXABMD  462   2025-01-04   
502-856 5 Louisville KY CMVLKYXABMD  462   2025-01-04   
504-223 A Kenner LA NWORLAMAYSX  490      
504-223 1 Kenner LA NWORLAMAYSX  490   2023-10-19   
504-406 A New Orleans LA NWORLAMAYTX  490      
504-406 3 New Orleans LA NWORLAMAYTX  490   2023-10-21   
504-506 3 Kenner LA NWORLAMAYSX  490   2024-12-12   
505-531 A Santa Fe NM ALBQNMMAX8Z  664      
505-531 1 Santa Fe NM ALBQNMMAX8Z  664   2022-12-08   
505-548 A Albuquerque NM ALBRNMJWNMD  664      
505-548 1 Albuquerque NM ALBRNMJWNMD  664   2023-04-17   
505-553 7 Albuquerque NM ALBRNMJWNMD  664   2024-08-14   
505-597 8 Albuquerque NM ALBRNMJWNMD  664   2023-12-22   
505-597 9 Albuquerque NM ALBRNMJWNMD  664   2023-12-22   
505-602 4 Santa Fe NM ALBQNMMAX8Z  664   2024-04-11   
505-602 5 Santa Fe NM ALBQNMMAX8Z  664   2024-04-11   
505-628 3 Santa Fe NM ALBQNMMAX8Z  664   2024-08-22   
505-628 4 Santa Fe NM ALBQNMMAX8Z  664   2024-08-22   
505-628 5 Santa Fe NM ALBQNMMAX8Z  664   2024-08-22   
507-780 A Rochester MN ROCHMNHIX7X  620      
507-780 3 Rochester MN ROCHMNHIX7X  620   2023-10-07   
507-905 A Winona MN ROCHMNHIX5X  620      
507-905 1 Winona MN ROCHMNHIX5X  620   2023-04-03   
507-910 5 Rochester MN ROCHMNHIX7X  620   2024-09-15   
508-661 3 Framingham MA CMBRMABEXBX  128   2024-08-18   
509-743 A Spokane WA CLMAWAXAAMD  676      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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