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: 601 [Rate centres in NPA 601] [Dial plan for NPA 601]

NXX: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-640 A Seminary MS JCSNMSPSXBY  516C AT&T CORP. 482      
601-640 0 Seminary MS JCSNMSPSX4Y  992E BANDWIDTH.COM CLEC, LLC - MS 482      
601-640 1 Seminary MS JCSNMSPSX4Y  992E BANDWIDTH.COM CLEC, LLC - MS 482      
601-640 2 Seminary MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482      
601-640 3 Seminary MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482      
601-640 4 Seminary MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482      
601-640 5 Seminary MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482      
601-640 6 Seminary MS   5178 LEVEL 3 COMMUNICATIONS, LLC - MS 482      
601-640 7 Seminary MS JCSNMSPSXBY  516C AT&T CORP. 482      
601-640 8 Seminary MS JCSNMSPSXFY  073H TELNYX LLC 482      
601-640 9 Seminary MS JCSNMSCPXWZ  458C TELEPORT COMMUNICATIONS AMERICA MS - LLC 482      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.