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.

Switch: TSMGOKMARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
580-371 A Tishomingo OK 9533 SOUTHWESTERN BELL 536      
580-371 0 Tishomingo OK 9533 SOUTHWESTERN BELL 536      
580-371 2 Tishomingo OK 9533 SOUTHWESTERN BELL 536      
580-371 3 Tishomingo OK 9533 SOUTHWESTERN BELL 536      
580-371 4 Tishomingo OK 9533 SOUTHWESTERN BELL 536      
580-371 9 Tishomingo OK 9533 SOUTHWESTERN BELL 536      

Last updated: Sun, 17 Oct 2021 19:41:42 UTC

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