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.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
350-208 0 Knights Ferry CA SKTNCACZ0MD  738   2023-10-02   
351-204 6 Lawrence MA SOVLMAABDMD  128   2023-10-27   
351-216 0 Hamilton MA SOVLMAABDMD  128   2023-10-27   
351-224 1 Barre MA SOVLMAABDMD  128   2023-12-01   
351-229 3 Amesbury MA SOVLMAABDMD  128   2023-12-01   
351-231 2 Gloucester MA SOVLMAABDMD  128   2023-10-27   
351-231 3 Gloucester MA SOVLMAABDMD  128   2023-06-08   
351-238 A Orange MA SOVLMAABDMD  128      
351-238 9 Orange MA SOVLMAABDMD  128   2023-04-09   
351-242 4 Fitchburg MA SOVLMAABDMD  128   2024-03-01   
351-242 5 Fitchburg MA SOVLMAABDMD  128   2023-12-30   
351-251 6 Groton MA SOVLMAABDMD  128   2023-12-01   
351-252 1 Rowley MA SOVLMAABDMD  128   2023-12-01   
351-266 1 Princeton MA SOVLMAABDMD  128   2023-12-01   
351-345 3 Hudson MA SOVLMAABDMD  128   2023-10-27   
351-345 7 Hudson MA SOVLMAABDMD  128   2023-06-08   
351-377 8 Peabody MA SOVLMAABDMD  128   2023-11-05   
351-377 9 Peabody MA SOVLMAABDMD  128   2023-06-18   
351-388 4 Harvard MA SOVLMAABDMD  128   2024-04-25   
351-388 5 Harvard MA SOVLMAABDMD  128   2024-01-14   
352-280 9 McIntosh FL GSVLFLMA55Z  45402   2022-04-02   
352-673 9 Dunnellon FL GSVLFLMA55Z  45402   2022-03-31   
352-696 9 Beverly Hills FL GSVLFLMA55Z  45403   2022-05-17   
352-721 2 Gainesville FL GSVLFLMA55Z  45402   2023-11-02   
352-721 3 Gainesville FL GSVLFLMA55Z  45402   2023-06-15   
352-741 A Brooksville FL GSVLFLMA55Z  45402      
352-741 9 Brooksville FL GSVLFLMA55Z  45402   2022-03-11   
352-752 3 Trillacoochee FL   45403   2024-07-10   
352-752 4 Trillacoochee FL   45403   2024-03-29   
352-820 9 Ocala FL GSVLFLMA55Z  45403   2022-02-28   
352-931 A Leesburg FL GSVLFLMA55Z  45403      
352-931 9 Leesburg FL GSVLFLMA55Z  45403   2022-02-12   
360-222 1 South Whidbey WA STTLWAWB28Z  674   2023-07-03   
360-284 6 Enumclaw WA STTLWAWB28Z  674   2023-07-03   
360-512 0 Snohomish WA STTLWAWB28Z  674   2023-07-03   
360-655 0 Eatonville WA STTLWAWB28Z  674   2023-07-03   
360-732 6 Chimacum/Center WA STTLWAWB28Z  674   2023-07-24   
360-732 9 Chimacum/Center WA STTLWAWB28Z  674   2023-12-01   
360-826 1 Mount Vernon WA STTLWAWB28Z  674   2023-07-03   
361-285 A Corpus Christi TX CRCHTXBBDMD  564      
361-285 9 Corpus Christi TX CRCHTXBBDMD  564   2022-02-27   
361-305 0 Victoria TX CRCHTXBBDMD  564   2022-12-16   
361-416 6 Port Aransas TX CRCHTXBBDMD  564   2022-12-16   
361-424 9 Sinton TX CRCHTXBBDMD  564   2022-10-03   
361-466 6 Kingsville TX CRCHTXBBDMD  564   2022-10-03   
361-599 0 Agua Dulce TX CRCHTXBBDMD  564   2022-12-16   
361-699 8 Mathis TX CRCHTXBBDMD  564   2023-01-15   
361-732 6 Aransas Pass TX CRCHTXBBDMD  564   2022-12-16   
361-831 3 Flatonia TX   564   2024-03-02   
361-831 4 Flatonia TX   564   2024-07-29   

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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