Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 645 [Rate centres in NPA 645] [Dial plan for NPA 645]

NXX: 233

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
645-233 A Miami FL   937C ONVOY, LLC - FL 46017   2025-11-24   
645-233 0 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-24   
645-233 1 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-24   
645-233 2 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-24   
645-233 3 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-24   
645-233 4 Miami FL   321J HD CARRIER LLC 46017   2026-01-04   
645-233 5 Miami FL   321J HD CARRIER LLC 46017   2026-01-04   
645-233 6 Miami FL   321J HD CARRIER LLC 46017   2026-01-04   
645-233 7 Miami FL   321J HD CARRIER LLC 46017   2026-01-04   
645-233 8 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-25   
645-233 9 Miami FL   937C ONVOY, LLC - FL 46017   2025-11-25   

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

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