Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-621 A Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 0 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 1 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 2 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 3 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 4 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2005-03-20   
203-621 5 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 6 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 7 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      
203-621 8 Darien CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2005-02-03   
203-621 9 Darien CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920      

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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