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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
321-850 A Melbourne FL ORLDFLCLXRY  624H ONVOY SPECTRUM, LLC 45806   2024-03-27   
321-850 0 Melbourne FL   624H ONVOY SPECTRUM, LLC 45806   2024-03-27   
321-850 1 Melbourne FL   624H ONVOY SPECTRUM, LLC 45806   2024-03-27   
321-850 2 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-03-28   
321-850 3 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-03-28   
321-850 4 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-03-28   
321-850 5 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-03-28   
321-850 6 Melbourne FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 45806   2024-06-27   
321-850 7 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-06-29   
321-850 8 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-04-19   
321-850 9 Melbourne FL   937C ONVOY, LLC - FL 45806   2024-06-29   

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

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