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: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 849

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-849 A O'Fallon MO WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 0 O'Fallon MO WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 1 O'Fallon MO STLSMOWQ8MD  073H TELNYX LLC 520      
636-849 3 O'Fallon MO   5562 METROPCS, INC. 520      
636-849 4 O'Fallon MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-849 5 O'Fallon MO WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      
636-849 6 O'Fallon MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 7 O'Fallon MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 8 O'Fallon MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520      
636-849 9 O'Fallon MO WNVLMOXAVMD  6529 T-MOBILE USA, INC. 520      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.