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.

OCN: 6630 SPOK, INC.

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
972-622 A Grand Prairie EMS TX DLLSTXJP2MD  552      
972-667 A Grand Prairie TX DLLSTXJP2MD  552      
972-760 A Grand Prairie EMS TX DLLSTXJP2MD  552      
972-902 A Grand Prairie TX DLLSTXJP2MD  552      
972-909 A Grand Prairie TX DLLSTXJP2MD  552      
973-205 A Newark NJ WAYNNJ081MD  224      
973-231 A Newark NJ WAYNNJ081MD  224      
973-269 A Morristown NJ WAYNNJ081MD  224      
973-603 A Newark NJ WAYNNJ081MD  224      
973-880 A Passaic NJ WAYNNJ081MD  224      
973-892 A Morristown NJ WAYNNJ081MD  224      
973-918 A Paterson NJ WAYNNJ081MD  224      
979-223 A Bryan-College Station TX BRYNTXCU1MD  570      
979-226 A Bryan-College Station TX BRYNTXCU1MD  570      
979-228 A Bryan-College Station TX BRYNTXCU1MD  570      
979-424 A Clute-Lake Jackson TX SGLDTXAQ0MD  560      
979-753 A Brenham TX SGLDTXAQ0MD  560      
985-699 A Slidell LA LARSLAXA0MD  490      
985-743 A Houma LA LARSLAXA0MD  490      
985-744 A Hammond LA LARSLAXA0MD  490      
985-786 A Covington LA LARSLAXA0MD  490      
985-890 A Houma LA LARSLAXA0MD  490      
989-253 A Saginaw MI SGNWMIACDS1  344      
989-454 A Midland MI SGNWMIACDS1  344      
989-591 A Alpena MI SGNWMIACDS1  344      
989-594 A Gaylord MI SGNWMIACDS1  344      
989-829 A Owosso MI SGNWMIACDS1  344      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Last updated: Sun, 17 May 2026 03:26:51 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.