Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 479 [Rate centres in NPA 479] [Dial plan for NPA 479]

NXX: 401

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
479-401 A Fort Smith AR FTSMARSUDS0  9533 SOUTHWESTERN BELL 526      
479-401 0 Fort Smith AR   6529 T-MOBILE USA, INC. 526   2016-07-17   
479-401 1 Fort Smith AR   6529 T-MOBILE USA, INC. 526   2016-07-17   
479-401 2 Fort Smith AR   5179 LEVEL 3 COMMUNICATIONS, LLC - AR 526   2016-06-03   
479-401 3 Fort Smith AR   9533 SOUTHWESTERN BELL 526   2016-09-29   
479-401 4 Fort Smith AR   9533 SOUTHWESTERN BELL 526   2015-10-18   
479-401 5 Fort Smith AR   9533 SOUTHWESTERN BELL 526   2016-04-27   
479-401 6 Fort Smith AR   318J COMCAST IP PHONE, LLC 526   2017-03-25   
479-401 7 Fort Smith AR   5562 METROPCS, INC. 526   2017-03-24   
479-401 8 Fort Smith AR   5562 METROPCS, INC. 526   2017-03-24   
479-401 9 Fort Smith AR   5562 METROPCS, INC. 526   2016-12-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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