Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 404 [Rate centres in NPA 404] [Dial plan for NPA 404]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
404-600 A Atlanta GA ATLNGAMADSC  844G O1 COMMUNICATIONS EAST, LLC - GA 438      
404-600 0 Atlanta GA   551G NUSO, LLC 438   2016-09-12   
404-600 1 Atlanta GA   983E BANDWIDTH.COM CLEC, LLC - GA 438   2013-06-21   
404-600 2 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-04-27   
404-600 3 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-04-27   
404-600 4 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-04-27   
404-600 5 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-04-27   
404-600 6 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-04-27   
404-600 7 Atlanta GA   983E BANDWIDTH.COM CLEC, LLC - GA 438   2013-06-21   
404-600 8 Atlanta GA   318J COMCAST IP PHONE, LLC 438   2013-09-05   
404-600 9 Atlanta GA   7473 POWERTEL ATLANTA LICENSES, INC. 438   2013-10-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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