Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 440 [Rate centres in NPA 440] [Dial plan for NPA 440]

NXX: 343

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-343 A Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 0 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 1 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 2 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 3 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 4 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 5 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 6 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 7 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320      
440-343 8 Willoughby OH CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2016-02-19   
440-343 9 Willoughby OH   145J TERRA NOVA TELECOM INC. 320   2021-09-25   

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

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