Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 405

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-405 A Arlington SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640      
605-405 0 Arlington SD   073H TELNYX LLC 640   2023-07-10   
605-405 1 Arlington SD   580H AIRUS, INC. - SD 640   2021-12-30   
605-405 2 Arlington SD   162G ONVOY, LLC - SD 640   2021-10-31   
605-405 3 Arlington SD   162G ONVOY, LLC - SD 640   2022-01-09   
605-405 4 Arlington SD   624H ONVOY SPECTRUM, LLC 640   2021-08-13   
605-405 5 Arlington SD   162G ONVOY, LLC - SD 640   2021-08-28   
605-405 6 Arlington SD   624H ONVOY SPECTRUM, LLC 640   2021-10-30   
605-405 7 Arlington SD   5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2023-01-07   
605-405 8 Arlington SD   162G ONVOY, LLC - SD 640   2023-01-02   
605-405 9 Arlington SD   907D INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC. 640   2021-09-12   

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

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