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: 490J BOOST SUBSCRIBERCO L.L.C.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
504-536 6 New Orleans LA NWORLASDJMD  490   2026-03-26   
504-536 7 New Orleans LA NWORLASDJMD  490   2026-02-26   
504-536 8 New Orleans LA NWORLASDJMD  490   2026-02-12   
504-536 9 New Orleans LA NWORLASDJMD  490   2026-01-15   
504-639 8 New Orleans LA NWORLASDJMD  490   2026-10-22   
504-639 9 New Orleans LA NWORLASDJMD  490   2026-09-24   
504-981 6 New Orleans LA NWORLASDJMD  490   2026-08-27   
504-981 7 New Orleans LA NWORLASDJMD  490   2026-07-30   
504-981 8 New Orleans LA NWORLASDJMD  490   2026-06-25   
504-981 9 New Orleans LA NWORLASDJMD  490   2026-06-04   
505-381 A Farmington NM ALBQNM10X6X  664   2024-10-17   
505-381 0 Farmington NM ALBQNM10X6X  664   2024-10-17   
505-460 A Albuquerque NM ALBQNM10X6X  664      
505-460 9 Albuquerque NM ALBQNM10X6X  664   2022-01-27   
505-479 4 Santa Fe NM ALBQNM10X6X  664   2022-10-31   
505-645 6 Albuquerque NM ALBQNM10X6X  664   2025-04-04   
505-656 5 Albuquerque NM ALBQNM10X6X  664   2025-11-27   
507-314 A Luverne MN ROCHMNHI21Z  620      
507-314 4 Luverne MN ROCHMNHI21Z  620   2023-04-17   
507-551 0 La Crescent MN ROCHMNHI21Z  620   2023-05-07   
507-693 2 Millville MN ROCHMNHI21Z  620   2023-03-05   
507-851 A Rochester MN ROCHMNHI21Z  620      
507-851 9 Rochester MN ROCHMNHI21Z  620   2022-02-27   
507-868 9 Henderson MN MPLSMNCD00Z  628   2023-10-18   
507-902 0 Mankato MN ROCHMNHI21Z  620   2023-05-07   
507-904 A Hayfield MN ROCHMNHI21Z  620      
507-904 8 Hayfield MN ROCHMNHI21Z  620   2023-04-05   
507-969 1 West Concord MN ROCHMNHI21Z  620   2023-03-06   
508-262 7 Seekonk MA SOVLMAABDMD  128   2023-12-01   
508-266 4 Whitinsville MA SOVLMAABDMD  128   2023-12-01   
508-316 6 North Attleboro MA SOVLMAABDMD  128   2024-07-18   
508-565 4 Easton MA SOVLMAABDMD  128   2023-05-29   
508-576 3 North Attleboro MA SOVLMAABDMD  128   2024-06-13   
508-576 9 North Attleboro MA SOVLMAABDMD  128   2026-04-02   
508-774 1 Fall River MA SOVLMAABDMD  128   2025-09-04   
509-206 6 Clarkston WA SPKNWADZBMD  676   2023-05-26   
509-231 1 Kennewick WA SPKNWADZBMD  676   2023-06-06   
509-241 6 Spokane WA SPKNWADZBMD  676   2025-06-21   
509-300 6 Wenatchee WA SPKNWADZBMD  676   2023-05-04   
509-360 3 Walla Walla WA SPKNWADZBMD  676   2023-05-23   
509-589 4 Newport WA CRALIDXO00Z  960   2023-05-02   
509-706 6 Kennewick WA SPKNWADZBMD  676   2025-11-13   
509-746 6 Yakima WA SPKNWADZBMD  676   2023-05-04   
509-791 A Grandview WA SPKNWADZBMD  676      
509-791 0 Grandview WA SPKNWADZBMD  676   2023-09-11   
509-920 A Chewelah WA SPKNWADZBMD  676      
509-920 9 Chewelah WA SPKNWADZBMD  676   2022-10-02   
509-938 4 Yakima WA SPKNWADZBMD  676   2025-07-18   
509-970 A Spokane WA SPKNWADZBMD  676      
509-970 9 Spokane WA SPKNWADZBMD  676   2022-02-17   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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