Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 398

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-398 A West Lebanon NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-398 0 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 1 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 2 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 3 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 4 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 5 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 6 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 7 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 8 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 9 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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