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.

West Yellowstone, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-640 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 0 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 1 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 2 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 3 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-640 4 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-640 5 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-640 6 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-640 7 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 8 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-640 9 BLNGMT933MD  073H TELNYX LLC 650      
406-641 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-641 0 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-641 1 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 2 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-641 3 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 4 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 5 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 6 BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650      
406-641 7 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 8 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-641 9 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-646 A WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 0 WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 1 WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 2 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-646 3 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-646 4 WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 5 WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 6 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-646 7 WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 8 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-646 9 WYLWMTMARS1  9636 QWEST CORPORATION 650      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.