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: 381

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
413-381 A Springfield MA SPFDMAWOXHX  506J TWILIO INTERNATIONAL, INC. 126      
413-381 0 Springfield MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2022-02-10   
413-381 1 Springfield MA   6889 OMNIPOINT MIAMI E LICENSE, LLC 126   2022-02-10   
413-381 2 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 3 Springfield MA   506J TWILIO INTERNATIONAL, INC. 126   2020-12-21   
413-381 4 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 5 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 6 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 7 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 8 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   
413-381 9 Springfield MA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 126   2021-03-12   

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

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