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: FTSMARSUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
479-201 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-226 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-288 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-314 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-401 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-441 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-494 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-573 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-709 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-755 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-782 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-783 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-784 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-785 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      
479-788 A Fort Smith AR 9533 SOUTHWESTERN BELL 526      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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