Area Code (231) Information:

State: Michigan - MI

Major Cities: Reed City, Kalkaska, Sylvan Beach, Shelby, White Cloud, Evart, Baldwin, Scottville, Indian River, Interlochen, Elk Rapids, Mancelona, Peshawbestown, Kingsley, Manton, Hesperia, Frankfort, Manistee, Big Rapids, Grawn

Major Carriers: Sprint Spectrum L.p.- Mi, Century Telephone Co. Of Northern Michigan, Centurytel Of Michigan, Inc., Alltel Communications, Inc. - Mi, United Telecom, Inc. - Mi, New Cingular Wireless Pcs, Llc - Mi, Kmc Telecom V, Inc. - Mi, Acd Telecom, Inc. - Mi, Nextel Communications, Inc., Peninsula Telephone Co., Ameritech Michigan, Ace Telephone Co. Of Michigan, Inc., At&t Local, Kaleva Telephone Co., Centennial Michiana License Company Llc, Centurytel Midwest-midwest, Inc., Verizon North Inc.-mi, Island Telephone Co., Pigeon Telephone Co., Centurytel Wireless, Inc.-mi