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.

NPA: 314 [Rate centres in NPA 314] [Dial plan for NPA 314]

NXX: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-983 A Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 0 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 1 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 2 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 3 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 4 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 5 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 6 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 7 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-983 8 Ladue MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2011-04-04   
314-983 9 Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.