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: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 940

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-940 A Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 0 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 1 Clovis CA FRSNCAPMGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 728      
559-940 2 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 3 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 4 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 5 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 6 Clovis CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728      
559-940 7 Clovis CA FRSNCA01XCZ  516C AT&T CORP. 728      
559-940 8 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      
559-940 9 Clovis CA FRSOCAYM4MD  6529 T-MOBILE USA, INC. 728      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.