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: 270 [Rate centres in NPA 270] [Dial plan for NPA 270]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
270-356 A Mayfield KY MDVIKYQAIMD  7421 AT&T - LOCAL 464      
270-356 0 Mayfield KY PDCHKYMAXAX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 464   2007-09-16   
270-356 1 Mayfield KY OWBOKYMAXGX  698F TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY 464   2012-02-01   
270-356 2 Mayfield KY BWLGKYMAPMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 464   2006-10-26   
270-356 3 Mayfield KY PDCHKYMAXAX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 464   2011-09-26   
270-356 4 Mayfield KY BWLGKYMAPMD  4369 LEVEL 3 COMMUNICATIONS, LLC - KY 464   2012-02-18   
270-356 5 Mayfield KY OWBOKYATX4X  516C AT&T CORP. 464   2011-11-17   
270-356 6 Mayfield KY PDCHKYMAXAX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 464   2008-09-11   
270-356 7 Mayfield KY MRRYKY15DS0  5196 E-TEL, LLC - KY 464   2012-02-22   
270-356 8 Mayfield KY OWBOKY22FMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 464   2014-03-05   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.