Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-637 A Festus-Crystal City MO STLTMOBODS1  7432 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 520      
636-637 6 Festus-Crystal City MO   7432 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 520   2019-11-02   
636-637 7 Festus-Crystal City MO   7432 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 520   2019-11-02   
636-637 8 Festus-Crystal City MO   516J TON80 COMMUNICATIONS LLC 520   2022-02-04   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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