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: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-558 A Warren MA SPFDMAWONMD  624H ONVOY SPECTRUM, LLC 126      
413-558 0 Warren MA SPFDMAWOX0X  073H TELNYX LLC 126   2021-03-28   
413-558 1 Warren MA SPFDMAWONMD  624H ONVOY SPECTRUM, LLC 126   2022-02-25   
413-558 2 Warren MA SPFDMAPM4MD  318J COMCAST IP PHONE, LLC 126   2022-07-16   
413-558 5 Warren MA SPFDMAWONMD  624H ONVOY SPECTRUM, LLC 126   2021-01-04   
413-558 6 Warren MA SPFDMAWOXXY  7135 TC SYSTEMS, INC. 126   2023-12-04   
413-558 7 Warren MA SPFDMAWOXLY  892D ONVOY, LLC - MA 126   2021-03-06   
413-558 8 Warren MA SPFDMAWOXLY  892D ONVOY, LLC - MA 126   2021-03-06   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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