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: 806 [Rate centres in NPA 806] [Dial plan for NPA 806]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
806-221 A Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 0 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 1 Plainview TX LBCKTXFGG03  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 544   2017-10-05   
806-221 2 Plainview TX LBCKTXPSXPX  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 544   2006-01-13   
806-221 3 Plainview TX LBCKTXPSXTX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 544   2008-02-08   
806-221 4 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 5 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 6 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 7 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 8 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      
806-221 9 Plainview TX PLVWTXPVDS0  9533 SOUTHWESTERN BELL 544      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.