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.

Sidney, OH

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
937-897 3 MNFDOHXAXAX  001F BANDWIDTH.COM CLEC, LLC - OH 923   2021-11-28   
937-897 4 MNFDOHXAXAX  001F BANDWIDTH.COM CLEC, LLC - OH 923   2021-11-28   
937-897 5 MNFDOHXAXAX  001F BANDWIDTH.COM CLEC, LLC - OH 923   2022-03-21   
937-897 6 LIMAOHXAXYX  464C ONVOY, LLC - OH 923   2021-05-30   
937-897 7 MNFDOHXAX4Y  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 923   2023-09-01   
937-897 8 MNFDOHXAXAX  001F BANDWIDTH.COM CLEC, LLC - OH 923   2022-03-03   
937-897 9 MNFDOHXAXDX  464C ONVOY, LLC - OH 923   2018-04-22   
937-948 A MNFDOHXAX5Y  515J IP HORIZON LLC 923   2024-03-29   
937-948 0 LIMAOHXAXYX  464C ONVOY, LLC - OH 923   2024-05-03   
937-948 1   515J IP HORIZON LLC 923   2024-03-29   
937-948 6 BLLFOHXAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 923   2024-12-26   
937-948 7 BLLFOHXAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 923   2024-12-26   
937-948 8 MNFDOHXAX4Y  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 923   2024-12-16   
937-948 9 LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2024-03-30   

<< 1 2

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.