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: SLKDUTVF0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
435-204 A Tooele UT 6630 SPOK, INC. 660      
435-235 A Cedar City UT 6630 SPOK, INC. 660      
801-202 A Salt Lake City UT 6630 SPOK, INC. 660      
801-219 A Salt Lake City UT 6630 SPOK, INC. 660      
801-241 A Salt Lake City UT 6630 SPOK, INC. 660      
801-242 A Salt Lake City UT 6630 SPOK, INC. 660      
801-248 A Salt Lake City UT 6630 SPOK, INC. 660      
801-249 A Salt Lake City UT 6630 SPOK, INC. 660      
801-271 A Salt Lake City UT 6630 SPOK, INC. 660      
801-275 A Salt Lake City UT 6630 SPOK, INC. 660      
801-276 A Salt Lake City UT 6630 SPOK, INC. 660      
801-279 A Kaysville UT 6630 SPOK, INC. 660      
801-283 A Provo UT 6630 SPOK, INC. 660      
801-929 A Salt Lake City UT 6630 SPOK, INC. 660      
801-986 A Salt Lake City UT 6630 SPOK, INC. 660      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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