Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-221 A San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558      
737-221 0 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-11-05   
737-221 1 San Marcos TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2017-09-19   
737-221 2 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-11-05   
737-221 3 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-12-15   
737-221 4 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-12-15   
737-221 5 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-11-05   
737-221 6 San Marcos TX SMRCTXXAYMD  903C ONVOY, LLC - TX 558   2018-11-05   
737-221 7 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2018-04-04   
737-221 8 San Marcos TX AUSXTXZRPS1  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 558   2018-01-11   
737-221 9 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2017-09-18   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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