Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 979 [Rate centres in NPA 979] [Dial plan for NPA 979]

NXX: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
979-855 A Markham TX   075L RICE TELECOM CORPORATION 560   2025-04-27   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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