Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 351 [Rate centres in NPA 351] [Dial plan for NPA 351]

NXX: 588

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
351-588 A Haverhill MA SOVLMAABCMD  516J TON80 COMMUNICATIONS, LLC 128      
351-588 0 Haverhill MA   6387 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 128   2023-01-17   
351-588 1 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
351-588 2 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
351-588 3 Haverhill MA   624H ONVOY SPECTRUM, LLC 128   2022-04-24   
351-588 4 Haverhill MA   624H ONVOY SPECTRUM, LLC 128   2022-04-24   
351-588 5 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
351-588 6 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
351-588 7 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   
351-588 8 Haverhill MA   516J TON80 COMMUNICATIONS, LLC 128   2022-04-23   
351-588 9 Haverhill MA   892D ONVOY, LLC - MA 128   2023-08-09   

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

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