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.

Switch: HSTNTXGIDSG

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-872 A Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 0 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 1 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 2 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 3 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 4 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 5 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 6 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 7 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 8 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
713-872 9 Houston TX 075L RICE TELECOM CORPORATION 560   2025-08-14   
979-438 A Angleton TX 075L RICE TELECOM CORPORATION 560   2025-06-13   
979-438 0 Angleton TX 075L RICE TELECOM CORPORATION 560   2025-06-13   
979-438 2 Angleton TX 075L RICE TELECOM CORPORATION 560   2025-06-13   
979-438 9 Angleton TX 075L RICE TELECOM CORPORATION 560   2025-06-13   
979-855 A Markham TX 075L RICE TELECOM CORPORATION 560   2025-04-27   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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