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.
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Switch: SMRCTXXADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
512-245 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-353 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-392 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-393 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-395 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-396 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-408 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-558 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-753 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-754 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      
512-805 A San Marcos TX 2140 BRIGHTSPEED OF SOUTHERN TEXAS, INC. 558      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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