Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 537

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-537 A Bulls Gap TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474   2024-12-06   
423-537 1 Bulls Gap TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474      
423-537 2 Bulls Gap TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474      
423-537 3 Bulls Gap TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474      
423-537 4 Bulls Gap TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2018-03-31   
423-537 5 Bulls Gap TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474      
423-537 6 Bulls Gap TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-03-25   
423-537 8 Bulls Gap TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474   2016-03-25   
423-537 9 Bulls Gap TN KNVNTNEC5MD  145J TERRA NOVA TELECOM INC. 474   2024-10-12   

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

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