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.

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

NXX: 622

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-622 A Arlington TX DLLSTXJFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
817-622 0 Arlington TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
817-622 1 Arlington TX   903C ONVOY, LLC - TX 552   2025-11-08   
817-622 2 Arlington TX   903C ONVOY, LLC - TX 552   2025-11-08   
817-622 3 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   
817-622 4 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   
817-622 5 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   
817-622 6 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   
817-622 7 Arlington TX   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552      
817-622 8 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   
817-622 9 Arlington TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2025-11-14   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.