Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 475J CALLWORKS CORPORATION

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
434-357 1 Lynchburg VA   250   2023-11-30   
434-358 A Charlottesville VA CHVLVACF0MD  928      
434-358 1 Charlottesville VA   928   2023-11-30   
447-258 A Champaign-Urbana IL CHMPILWK4MD  370      
447-258 1 Champaign-Urbana IL   370   2023-08-26   
447-283 A Springfield IL SPFDILGI4MD  374   2024-02-08   
447-283 1 Springfield IL   374   2024-02-08   
448-232 A Panama City FL PNCYFLMA27Z  45009      
448-232 1 Panama City FL   45009   2023-12-09   
448-233 A Tallahassee FL TLHUFLEB3MD  953      
448-233 1 Tallahassee FL   953   2023-12-09   
448-234 A Pensacola FL PNSCFLPG4MD  44813      
448-234 1 Pensacola FL   44813   2023-12-16   
458-325 A Eugene OR EUGNOR145MD  670   2024-06-20   
458-325 1 Eugene OR   670   2024-06-20   
478-398 A Macon GA MACOGAST3MD  446      
478-398 1 Macon GA   446   2023-12-16   
480-972 A Phoenix AZ PHNXAZ28X0X  666   2024-01-29   
480-972 1 Phoenix AZ   666   2024-01-29   
501-561 A Little Rock AR LTRKARGGXWX  528      
501-561 1 Little Rock AR   528   2023-12-25   
502-790 A Louisville KY LSVLKY180MD  462      
502-790 1 Louisville KY   462   2023-12-14   
507-974 A Rochester MN ROCHMNHI8MD  620   2024-02-02   
507-974 1 Rochester MN   620   2024-02-02   
509-507 A Deer Park WA SPKNWAOBX6Y  676      
509-507 9 Deer Park WA   676   2024-06-10   
520-703 A Tucson AZ TCSNAZQK0MD  668   2024-01-29   
520-703 1 Tucson AZ   668   2024-01-29   
539-322 A Tulsa OK TULTOK073MD  538   2024-06-21   
539-322 1 Tulsa OK   538   2024-06-21   
557-215 A St Louis MO STLSMOWQFMD  520   2024-01-06   
557-215 1 St Louis MO   520   2024-01-06   
572-235 A Oklahoma City OK OKCYOKFB02Z  536   2024-06-20   
572-235 1 Oklahoma City OK   536   2024-06-20   
582-266 A Knoxville (Tioga) PA STCGPADN4MD  230   2024-06-09   
582-266 1 Knoxville (Tioga) PA   230   2024-06-09   
585-759 A Rochester NY ROCHNYCT4MD  974   2024-08-01   
585-759 1 Rochester NY   974   2024-08-01   
612-542 A Twin Cities MN MPLSMNCDLMD  628   2024-02-02   
612-542 1 Twin Cities MN   628   2024-02-02   
629-286 A Nashville TN NSVNTNGNBMD  470      
629-286 1 Nashville TN   470   2023-07-14   
640-254 A Pleasantville NJ PSVLNJ39XOX  220   2024-03-10   
640-254 1 Pleasantville NJ   220   2024-03-10   
656-233 A Tampa Central FL TAMSFLDEXFX  952   2024-01-29   
656-233 1 Tampa Central FL   952   2024-01-29   
659-269 A Birmingham AL BRHMAL06X6Y  476      
659-269 1 Birmingham AL   476   2023-06-29   
667-487 A Baltimore MD BLTMMDSNJMD  238   2024-07-11   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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