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
425-474 0 Everett WA STTLWAWB28Z  674   2023-07-03   
425-476 6 Bothell WA STTLWAWB28Z  674   2023-07-03   
425-536 6 Bellevue WA STTLWAWB28Z  674   2023-07-03   
425-578 2 Maple Valley WA STTLWAWB28Z  674   2023-07-03   
425-995 A Everett WA STTLWAWB28Z  674   2025-12-08   
425-995 0 Everett WA STTLWAWB28Z  674   2025-12-08   
430-240 3 Longview TX LGVWTXBA56Z  554   2024-01-13   
430-256 6 Caddo Mills TX DLLSTX97XGX  552   2023-01-15   
430-287 3 Tyler TX LGVWTXBA56Z  554   2023-06-30   
430-294 A Texarkana TX LGVWTXBA56Z  554      
430-294 9 Texarkana TX LGVWTXBA56Z  554   2022-05-01   
430-352 8 Tyler TX LGVWTXBA56Z  554   2026-03-01   
430-422 0 Sherman TX DLLSTX97XGX  552   2022-03-01   
430-431 3 Wills Point TX DLLSTX97XGX  552   2022-09-03   
432-323 A Midland TX MDLDTX8722Z  542      
432-323 9 Midland TX MDLDTX8722Z  542   2023-08-26   
432-326 7 Odessa TX MDLDTX8722Z  542   2024-05-02   
432-328 3 Crane TX MDLDTX8722Z  542   2024-09-05   
432-351 0 Odessa TX MDLDTX8722Z  542   2025-12-18   
432-800 2 Midland TX MDLDTX8722Z  542   2025-09-20   
434-340 A Charlottesville VA CHVLVAXA22Z  928      
434-340 9 Charlottesville VA CHVLVAXA22Z  928   2023-08-18   
434-347 A Lynchburg VA LYBGVA5522Z  250      
434-347 0 Lynchburg VA LYBGVA5522Z  250   2025-01-03   
434-347 2 Lynchburg VA LYBGVA5522Z  250   2026-01-29   
434-347 7 Lynchburg VA LYBGVA5522Z  250   2026-04-27   
434-347 9 Lynchburg VA LYBGVA5522Z  250   2023-11-10   
434-357 7 Lynchburg VA LYBGVA5522Z  250   2025-05-28   
434-490 2 Charlottesville VA CHVLVAXA22Z  928   2025-06-30   
435-282 2 Tremonton UT SLKCUT26EMD  660   2023-03-15   
435-317 A Logan UT SLKCUT26EMD  660      
435-317 9 Logan UT SLKCUT26EMD  660   2022-06-10   
435-900 9 St George UT SLKCUT26EMD  660   2023-05-29   
435-919 9 Brigham City UT SLKCUT26EMD  660   2022-10-29   
440-215 2 Wakeman OH CLEVOHEKRMD  320   2024-02-21   
440-254 7 Leroy (Lake) OH CLEVOHEKRMD  320   2024-01-10   
440-634 3 Amherst OH CLEVOHEKRMD  320   2025-09-27   
440-690 9 Elyria OH CLEVOHEKRMD  320   2022-04-01   
440-691 A Cleveland OH CLEVOHEKRMD  320      
440-691 2 Cleveland OH CLEVOHEKRMD  320   2025-07-27   
440-691 3 Cleveland OH CLEVOHEKRMD  320   2025-07-27   
440-691 4 Cleveland OH CLEVOHEKRMD  320   2025-05-28   
440-691 5 Cleveland OH CLEVOHEKRMD  320   2025-02-28   
440-691 6 Cleveland OH CLEVOHEKRMD  320   2025-02-28   
440-691 7 Cleveland OH CLEVOHEKRMD  320   2024-08-28   
440-691 8 Cleveland OH CLEVOHEKRMD  320   2024-04-01   
440-691 9 Cleveland OH CLEVOHEKRMD  320   2022-02-12   
440-705 9 Middlefield OH CLEVOHEKRMD  320   2022-09-01   
440-765 0 Russell OH CLEVOHEKRMD  320   2022-05-01   
440-765 1 Russell OH CLEVOHEKRMD  320   2026-01-18   

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

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