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.

Willcox, AZ

<< 1 2 3 4

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
520-929 0 TCSMAZEE0MD  073H TELNYX LLC 668   2022-04-24   
520-929 1 TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-08-19   
520-929 2 TCSMAZCHFMD  516J TON80 COMMUNICATIONS, LLC 668   2022-04-21   
520-929 3 TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-08-19   
520-929 4 TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2022-08-19   
520-929 5 TCSNAZMAXIX  587F BANDWIDTH.COM CLEC, LLC - AZ 668   2022-10-23   
520-929 6 TCSMAZOI3MD  6529 T-MOBILE USA, INC. 668   2022-09-17   
520-929 7 TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2022-04-22   
520-929 8 TCSNAZMAXHX  630E ONVOY, LLC - AZ 668   2022-04-22   
520-929 9 TCSNAZXGAMD  6572 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 668   2023-05-23   

<< 1 2 3 4

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.