Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 321 [Rate centres in NPA 321] [Dial plan for NPA 321]

NXX: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-220 A Melbourne FL ORLDFLMAYEX  899D METROPCS NETWORKS, LLC 45806      
321-220 0 Melbourne FL   516C AT&T CORP. 45806   2008-12-21   
321-220 1 Melbourne FL   937C ONVOY, LLC - FL 45806   2009-02-09   
321-220 2 Melbourne FL   829J PAETEC ITEL, LLC 45806   2009-02-05   
321-220 3 Melbourne FL   937C ONVOY, LLC - FL 45806   2009-02-09   
321-220 4 Melbourne FL   6889 OMNIPOINT MIAMI E LICENSE, LLC 45806   2006-05-11   
321-220 5 Melbourne FL   937C ONVOY, LLC - FL 45806   2009-02-09   
321-220 6 Melbourne FL   829J PAETEC ITEL, LLC 45806   2009-02-10   
321-220 7 Melbourne FL   937C ONVOY, LLC - FL 45806   2008-10-19   
321-220 8 Melbourne FL   937C ONVOY, LLC - FL 45806   2008-10-19   
321-220 9 Melbourne FL   937C ONVOY, LLC - FL 45806   2008-10-19   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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