Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 339 [Rate centres in NPA 339] [Dial plan for NPA 339]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
339-339 A Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 0 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 1 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 2 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 3 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 4 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 5 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 6 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 7 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 8 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   
339-339 9 Waltham MA   125L MASS MOBILE LLC 128   2025-04-29   

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

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