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
813-912 0 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 1 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 2 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 3 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 4 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 5 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 6 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 7 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 8 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
813-912 9 Tampa West FL TAMPFLXAX3X  952   2016-02-06   
814-610 A Altoona PA ALNAPAACXMD  230      
814-610 8 Altoona PA ALNAPAACXMD  230   2020-11-22   
814-610 9 Altoona PA ALNAPAACXMD  230   2020-11-22   
814-890 A Beaverdale PA ALNAPAACYMD  230      
814-890 8 Beaverdale PA ALNAPAACYMD  230   2021-05-29   
814-890 9 Beaverdale PA ALNAPAACYMD  230   2021-05-29   
818-214 1 Reseda CA LSANCARCY1X  730   2016-06-11   
818-214 2 Reseda CA LSANCARCY1X  730   2016-06-11   
818-214 3 Reseda CA LSANCARCY1X  730   2016-06-11   
818-214 4 Reseda CA LSANCARCY1X  730   2016-06-11   
818-214 5 Reseda CA   730   2016-08-27   
818-214 6 Reseda CA LSANCARCY1X  730   2016-08-27   
820-280 A Los Alamos CA SNBBCAXFXHY  740      
820-280 9 Los Alamos CA SNBBCAXFXHY  740   2019-11-23   
821-207 6 Greenville SC   430   2025-08-11   
821-207 7 Greenville SC   430   2025-08-11   
821-216 4 Spartanburg SC   430   2026-02-14   
821-216 5 Spartanburg SC   430   2026-02-14   
821-216 6 Spartanburg SC   430   2026-02-14   
826-217 A Harrisonburg VA HRBGVABFSMD  927      
826-217 8 Harrisonburg VA HRBGVABFSMD  927   2023-05-11   
826-217 9 Harrisonburg VA HRBGVABFSMD  927   2023-05-11   
826-270 2 Roanoke VA   244   2026-01-18   
826-270 3 Roanoke VA   244   2026-01-18   
826-270 4 Roanoke VA   244   2026-01-18   
828-939 A Asheville NC   420   2026-01-22   
828-939 6 Asheville NC   420   2026-01-22   
828-939 7 Asheville NC   420   2026-01-22   
828-939 8 Asheville NC   420   2026-01-22   
828-939 9 Asheville NC   420   2026-01-22   
830-259 A Floresville TX SNANTXCA91Z  566      
830-259 8 Floresville TX SNANTXCA91Z  566   2022-09-05   
830-259 9 Floresville TX SNANTXCA91Z  566   2022-09-05   
831-215 A Monterey CA MTRYCAPM8MD  736      
831-215 8 Monterey CA MTRYCAPM8MD  736   2020-11-23   
831-215 9 Monterey CA MTRYCAPM8MD  736   2020-11-23   
831-322 6 Watsonville CA   722   2016-10-22   
831-777 0 Santa Cruz CA SNFCCA21XOZ  722   2016-06-28   
831-777 1 Santa Cruz CA SNFCCA21XOZ  722   2016-06-28   
831-859 A Salinas CA MTRYCAPM9MD  736   2024-08-23   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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