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: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-510 A Ontario CA LSAJCAWZDS1  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
909-510 0 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   
909-510 1 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   
909-510 2 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   
909-510 3 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   
909-510 4 Ontario CA LSAJCAWZDS1  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
909-510 5 Ontario CA LSAJCAWZDS1  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
909-510 6 Ontario CA LSAJCAWZDS1  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
909-510 7 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   
909-510 8 Ontario CA LSAJCAWZDS1  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
909-510 9 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-16   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.