Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-452 A Laredo TX SNANTXDIX4X  197D VONAGE AMERICA LLC 566      
956-452 0 Laredo TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2020-04-07   
956-452 1 Laredo TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2020-06-21   
956-452 2 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 3 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 4 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 5 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 6 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 7 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 8 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   
956-452 9 Laredo TX   197D VONAGE AMERICA LLC 566   2018-12-10   

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

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