Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-800 A Meredith NH MNCHNHCO26Z  965H FRACTEL, LLC 122      
603-800 0 Meredith NH MNCHNHCO26Z  965H FRACTEL, LLC 122   2020-01-30   
603-800 1 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2020-01-31   
603-800 2 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-06-06   
603-800 3 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-11-04   
603-800 4 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2022-02-21   
603-800 5 Meredith NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2020-09-16   
603-800 6 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2022-05-06   
603-800 7 Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2022-06-16   
603-800 8 Meredith NH MNCHNHCO26Z  965H FRACTEL, LLC 122   2020-01-30   
603-800 9 Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-01-07   

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

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