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NPA: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 477

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-477 A Mansfield EMS TX FTWOTXBRDS0  9533 SOUTHWESTERN BELL 552      
817-477 0 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 1 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 2 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 3 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 4 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 5 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 6 Mansfield EMS TX   903C ONVOY, LLC - TX 552   2016-02-26   
817-477 7 Mansfield EMS TX   5562 METROPCS, INC. 552   2010-02-19   
817-477 8 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      
817-477 9 Mansfield EMS TX   9533 SOUTHWESTERN BELL 552      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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