Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 413 [Rate centres in NPA 413] [Dial plan for NPA 413]

NXX: 601

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-601 A Pittsfield MA   321J HD CARRIER LLC 126      
413-601 1 Pittsfield MA   321J HD CARRIER LLC 126   2025-11-28   
413-601 2 Pittsfield MA   321J HD CARRIER LLC 126   2025-11-28   
413-601 3 Pittsfield MA   321J HD CARRIER LLC 126   2025-11-28   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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