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: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-644 A Zapata TX HRLNTXHGXNX  965H FRACTEL, LLC 568      
956-644 0 Zapata TX   073H TELNYX LLC 568   2021-04-09   
956-644 1 Zapata TX   4290 STPCS JOINT VENTURE, LLC 568   2021-08-12   
956-644 2 Zapata TX   4290 STPCS JOINT VENTURE, LLC 568   2021-08-12   
956-644 3 Zapata TX   4290 STPCS JOINT VENTURE, LLC 568   2021-08-12   
956-644 4 Zapata TX   965H FRACTEL, LLC 568   2021-03-15   
956-644 5 Zapata TX   624H ONVOY SPECTRUM, LLC 568   2021-06-26   
956-644 6 Zapata TX   903C ONVOY, LLC - TX 568   2025-04-13   
956-644 7 Zapata TX   624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-644 8 Zapata TX   624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-644 9 Zapata TX   4290 STPCS JOINT VENTURE, LLC 568   2021-08-12   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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