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: THTNTXXARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-385 A Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 0 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 1 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 2 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 3 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 4 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 5 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 6 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 7 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      
254-385 9 Thornton TX 2084 UNITED TELEPHONE OF TEXAS INC DBA CENTURYLINK 556      

Last updated: Sun, 18 Aug 2024 23:40:19 UTC

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