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.
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Switch: SYRCNY027MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
315-222 0 Watertown NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-30   
315-900 1 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 2 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 3 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 4 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 5 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 6 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 7 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
315-900 8 Sempronius NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-680 A Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136      
680-680 0 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 1 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 2 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 3 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 4 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 5 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 6 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 7 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 8 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-680 9 Phelps NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2022-12-02   
680-900 0 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 1 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 2 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 3 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 4 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 6 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   
680-900 8 Barneveld NY 558C REGIONAL TELEPHONE CORPORATION - NY 136   2023-07-03   

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

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