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City Carrier Name:Columbia

This is the United States City Carrier Name:Columbia Area Code Database page list. You can click the title to browse the detail information.
Region Code: MD
Region Name National Destination Code Sn from Sn to Number Type
Maryland 443 3190000 3190999 G
Maryland 443 3191000 3191999 G
Maryland 443 3196000 3196999 G
Maryland 443 3199000 3199999 G