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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 3671000 3671999 M
Maryland 443 3676000 3676999 M
Maryland 443 5421000 5421999 M
Maryland 443 5423000 5423999 M
Maryland 443 8643000 8643999 M