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

NXX: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-856 A Arlington EMS TX FTWOTXCRDS0  9533 SOUTHWESTERN BELL 552      
817-856 0 Arlington EMS TX   903C ONVOY, LLC - TX 552   2010-03-19   
817-856 1 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-856 2 Arlington EMS TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2013-08-15   
817-856 3 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-856 4 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-856 5 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-856 6 Arlington EMS TX   9533 SOUTHWESTERN BELL 552      
817-856 7 Arlington EMS TX   5562 METROPCS, INC. 552   2012-02-11   
817-856 8 Arlington EMS TX   5562 METROPCS, INC. 552   2012-02-11   
817-856 9 Arlington EMS TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2012-03-02   

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

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