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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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-257 A Eagle Lake MN EGLKMNXERS2  1375 CONSOLIDATED COMMUNICATIONS MID-COM COMPANY - MN 620      
507-257 0 Eagle Lake MN MNKTMNXMVMD  184D ONVOY, LLC - MN 620   2023-08-20   
507-257 1 Eagle Lake MN EGLKMNXERS2  1375 CONSOLIDATED COMMUNICATIONS MID-COM COMPANY - MN 620      
507-257 3 Eagle Lake MN EGLKMNXERS2  1375 CONSOLIDATED COMMUNICATIONS MID-COM COMPANY - MN 620      
507-257 5 Eagle Lake MN EGLKMNXERS2  1375 CONSOLIDATED COMMUNICATIONS MID-COM COMPANY - MN 620      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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