Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-489 A Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-08-04   
667-489 0 Hampstead MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-08-04   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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