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.

NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 351

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-351 A Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 0 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
661-351 1 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2017-12-09   
661-351 2 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 3 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 4 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 5 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 6 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 7 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 8 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      
661-351 9 Lake Hughes CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.