Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 305 [Rate centres in NPA 305] [Dial plan for NPA 305]

NXX: 831

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
305-831 A Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2025-02-02   
305-831 0 Keys FL   982E BANDWIDTH.COM CLEC, LLC - FL 46017   2017-09-09   
305-831 1 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 2 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 3 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 4 Keys FL   4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46017   2004-09-28   
305-831 5 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 6 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 7 Keys FL   508J CENTURYLINK COMMUNICATIONS, LLC 46017   2017-09-03   
305-831 8 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   
305-831 9 Keys FL   937C ONVOY, LLC - FL 46017   2006-09-17   

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

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