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: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 783

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-783 A Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 0 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 1 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 2 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 3 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 4 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 5 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 6 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 7 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 8 Fredericktown MO FRTWMOSTRS2  9533 SOUTHWESTERN BELL 520      
573-783 9 Fredericktown MO MNCHMOAQGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.