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: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 219

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-219 A Aurora IL CHCGIL245MD  073H TELNYX LLC 358      
331-219 0 Aurora IL CHCGIL245MD  073H TELNYX LLC 358   2017-04-30   
331-219 1 Aurora IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358   2018-11-10   
331-219 2 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-11-02   
331-219 3 Aurora IL CHCGILMF4MD  5562 METROPCS, INC. 358   2018-11-12   
331-219 4 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2019-01-18   
331-219 5 Aurora IL WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-07-13   
331-219 6 Aurora IL CHCGIL24DS6  224C ONVOY, LLC 358   2017-07-13   
331-219 7 Aurora IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2017-09-25   
331-219 8 Aurora IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-05-22   
331-219 9 Aurora IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-05-22   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.