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: OKCYOKCEXKY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
405-304 A Oklahoma City OK 6630 SPOK, INC. 536      
405-327 A Oklahoma City OK 6630 SPOK, INC. 536      
405-502 A Oklahoma City OK 6630 SPOK, INC. 536      
405-559 A Oklahoma City OK 6630 SPOK, INC. 536      
405-575 A Oklahoma City OK 6630 SPOK, INC. 536      
405-647 A Oklahoma City OK 6630 SPOK, INC. 536      
405-660 A Oklahoma City OK 6630 SPOK, INC. 536      
405-690 A Oklahoma City OK 6630 SPOK, INC. 536      
405-770 A Oklahoma City OK 6630 SPOK, INC. 536      
405-904 A Oklahoma City OK 6630 SPOK, INC. 536      
405-908 A Oklahoma City OK 6630 SPOK, INC. 536      
405-980 A Oklahoma City OK 6630 SPOK, INC. 536      
580-398 A Elk City OK 6630 SPOK, INC. 536      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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