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: NOBLOKMARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
405-872 A Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 0 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 1 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 3 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 4 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 5 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 7 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 8 Noble OK 9533 SOUTHWESTERN BELL 536      
405-872 9 Noble OK 9533 SOUTHWESTERN BELL 536      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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