Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: BLTQMD017MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
667-258 A Baltimore MD 996H AIRESPRING, INC. 238      
667-258 0 Baltimore MD 996H AIRESPRING, INC. 238   2018-12-29   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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