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: 337 [Rate centres in NPA 337] [Dial plan for NPA 337]

NXX: 307

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-307 A Krotz Springs LA LFYTLA18X1X  6505 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 488      
337-307 0 Krotz Springs LA LFYTLA18X1X  6505 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 488      
337-307 1 Krotz Springs LA LFYTLAMAX7Z  624H ONVOY SPECTRUM, LLC 488      
337-307 2 Krotz Springs LA ABVLLACT0MD  4930 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 488      
337-307 3 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-307 4 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-307 5 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-307 6 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-307 7 Krotz Springs LA LFYTLAMAXUY  508J CENTURYLINK COMMUNICATIONS, LLC 488      
337-307 8 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      
337-307 9 Krotz Springs LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.