Area Code 231

Area Code 231
Post Office City: Harrison, MI
County: Clare County County
Timezone: America/Detroit
Coordinates: -84.8, 44.01
Area Code: 231

What is the Area Code?

In the United States, the "Area Code" is a numerical prefix used in phone numbers to identify a specific geographic region within the country. These area codes are part of the telephone numbering system and are essential for the proper routing of calls.

The area code typically consists of three digits and precedes the local phone number. For example, in the phone number (212) 555-1234, "212" is the area code that corresponds to a part of New York City.

Functions of the Area Code:

Geographic Identification: Allows the determination of the region or city from which a call originates. Call Routing: Helps telephone service providers direct calls efficiently through their network. Number Distribution: Facilitates the assignment and organization of phone numbers to avoid conflicts and duplications. Billing: Sometimes, call costs can vary depending on the area code, especially for long-distance calls. In summary, area codes are fundamental to the functioning of the telephone system in the United States, ensuring that calls are connected correctly and managed in an orderly manner.

231

Cities and counties within 231 Area Code

Here are the cities and towns for Area Code 231 that the US Post Office accepts. The city listed as the main city is usually where the main post office is located. When sending a letter or package, always include your preferred city to ensure your delivery is as successful as possible

Primary CityAceptable CitiesStateCountyZIPArea codesTimezone
Harrison--Michigan(MI)Clare County48625989, 231America/Detroit
Roscommon--Michigan(MI)Roscommon County48653989, 231
Bailey--Michigan(MI)Muskegon County49303231, 616America/Detroit
Baldwin--Michigan(MI)Lake County49304231America/Detroit
Barryton--Michigan(MI)Mecosta County49305989, 231America/Detroit
Big Rapids--Michigan(MI)Mecosta County49307231
Bitely--Michigan(MI)Newaygo County49309231America/Detroit
Brohman--Michigan(MI)Newaygo County49312231America/Detroit
Chippewa Lake--Michigan(MI)Mecosta County49320231America/Detroit
Coral--Michigan(MI)Montcalm County49322231, 989America/Detroit
Grant--Michigan(MI)Newaygo County49327231, 616America/Detroit
Howard City--Michigan(MI)Montcalm County49329231, 616America/Detroit
Kent City--Michigan(MI)Kent County49330616, 231America/Detroit
Mecosta--Michigan(MI)Mecosta County49332231, 989America/Detroit
Morley--Michigan(MI)Mecosta County49336231, 989America/Detroit
Newaygo--Michigan(MI)Newaygo County49337231America/Detroit
Paris--Michigan(MI)Newaygo County49338231
Pierson--Michigan(MI)Montcalm County49339616, 231America/Detroit
Remus--Michigan(MI)Mecosta County49340989, 231
Rodney--Michigan(MI)Mecosta County49342231America/Detroit
StanwoodCanadian Lake, Canadian LakesMichigan(MI)Mecosta County49346231America/Detroit
White Cloud--Michigan(MI)Newaygo County49349231America/Detroit
Branch--Michigan(MI)Mason County49402231America/Detroit
Conklin--Michigan(MI)Ottawa County49403616, 231America/Detroit
Custer--Michigan(MI)Mason County49405231America/Detroit
Fountain--Michigan(MI)Mason County49410231America/Detroit
Free Soil--Michigan(MI)Mason County49411231America/Detroit
Fremont--Michigan(MI)Newaygo County49412231America/Detroit
Fremont--Michigan(MI)Newaygo County49413231America/Detroit
Fruitport--Michigan(MI)Muskegon County49415231America/Detroit
Hart--Michigan(MI)Oceana County49420231America/Detroit
Hesperia--Michigan(MI)Oceana County49421231
HoltonBrunswickMichigan(MI)Muskegon County49425231America/Detroit
Ludington--Michigan(MI)Mason County49431231America/Detroit
MearsSilver LakeMichigan(MI)Oceana County49436231America/Detroit
Montague--Michigan(MI)Muskegon County49437231America/Detroit
Muskegon--Michigan(MI)Muskegon County49440231America/Detroit
MuskegonNorton ShoresMichigan(MI)Muskegon County49441231America/Detroit
Muskegon--Michigan(MI)Muskegon County49442231, 616America/Detroit
Muskegon--Michigan(MI)Muskegon County49443231America/Detroit
MuskegonMuskegon Heights, Muskegon Hts, Norton ShoresMichigan(MI)Muskegon County49444231America/Detroit
MuskegonN Muskegon, North MuskegonMichigan(MI)Muskegon County49445231, 616America/Detroit
New Era--Michigan(MI)Oceana County49446231America/Detroit
Nunica--Michigan(MI)Ottawa County49448616, 231America/Detroit
Pentwater--Michigan(MI)Oceana County49449231
Ravenna--Michigan(MI)Muskegon County49451231, 616
Rothbury--Michigan(MI)Oceana County49452231America/Detroit
Scottville--Michigan(MI)Mason County49454231America/Detroit
Shelby--Michigan(MI)Oceana County49455231America/Detroit
Spring LakeNorton ShoresMichigan(MI)Ottawa County49456231, 616America/Detroit
Twin Lake--Michigan(MI)Muskegon County49457231America/Detroit
Walhalla--Michigan(MI)Mason County49458231America/Detroit
Walkerville--Michigan(MI)Oceana County49459231America/Detroit
Whitehall--Michigan(MI)Muskegon County49461231America/Detroit
Sylvan BeachWabaningo, WhitehallMichigan(MI)Muskegon County49463231America/Detroit
WyomingGrand RapidsMichigan(MI)Kent County49509231, 616America/Detroit
CadillacHoxeyvilleMichigan(MI)Wexford County49601231America/Detroit
Acme--Michigan(MI)Grand Traverse County49610231America/Detroit
Alba--Michigan(MI)Antrim County49611231America/Detroit
Alden--Michigan(MI)Antrim County49612231America/Detroit
Arcadia--Michigan(MI)Manistee County49613231
Bear LakePierportMichigan(MI)Manistee County49614231America/Detroit
Bellaire--Michigan(MI)Antrim County49615231America/Detroit
Benzonia--Michigan(MI)Benzie County49616231America/Detroit
Beulah--Michigan(MI)Benzie County49617231America/Detroit
Boon--Michigan(MI)Wexford County49618231America/Detroit
Brethren--Michigan(MI)Manistee County49619231, 616America/Detroit
Buckley--Michigan(MI)Grand Traverse County49620231
Cedar--Michigan(MI)Leelanau County49621231America/Detroit
Central Lake--Michigan(MI)Antrim County49622231America/Detroit
Chase--Michigan(MI)Lake County49623231America/Detroit
Copemish--Michigan(MI)Manistee County49625231America/Detroit
Eastlake--Michigan(MI)Manistee County49626231America/Detroit
Eastport--Michigan(MI)Antrim County49627231America/Detroit
Elberta--Michigan(MI)Benzie County49628231America/Detroit
Elk Rapids--Michigan(MI)Antrim County49629231America/Detroit
Empire--Michigan(MI)Leelanau County49630231America/Detroit
Evart--Michigan(MI)Osceola County49631231, 989
Falmouth--Michigan(MI)Missaukee County49632231America/Detroit
Fife Lake--Michigan(MI)Kalkaska County49633231, 989
Filer City--Michigan(MI)Manistee County49634231America/Detroit
Frankfort--Michigan(MI)Benzie County49635231America/Detroit
Glen Arbor--Michigan(MI)Leelanau County49636231America/Detroit
Grawn--Michigan(MI)Grand Traverse County49637231America/Detroit
Harrietta--Michigan(MI)Wexford County49638231
Hersey--Michigan(MI)Osceola County49639231America/Detroit
Honor--Michigan(MI)Benzie County49640231America/Detroit
Idlewild--Michigan(MI)Lake County49642231America/Detroit
InterlochenKarlinMichigan(MI)Grand Traverse County49643231
Irons--Michigan(MI)Lake County49644231America/Detroit
Kaleva--Michigan(MI)Manistee County49645231America/Detroit
Kalkaska--Michigan(MI)Kalkaska County49646231America/Detroit
Kewadin--Michigan(MI)Antrim County49648231America/Detroit
Kingsley--Michigan(MI)Grand Traverse County49649231
Lake Ann--Michigan(MI)Benzie County49650231America/Detroit
Lake CityMoorestownMichigan(MI)Missaukee County49651616, 231America/Detroit
Lake Leelanau--Michigan(MI)Leelanau County49653231America/Detroit
Leland--Michigan(MI)Leelanau County49654231America/Detroit
Leroy--Michigan(MI)Osceola County49655231
Luther--Michigan(MI)Lake County49656231America/Detroit
Mc Bain--Michigan(MI)Missaukee County49657616, 231America/Detroit
Mancelona--Michigan(MI)Antrim County49659231
ManisteeStronachMichigan(MI)Manistee County49660231America/Detroit
Manton--Michigan(MI)Wexford County49663231
Maple City--Michigan(MI)Leelanau County49664231America/Detroit
Marion--Michigan(MI)Clare County49665231
Mayfield--Michigan(MI)Grand Traverse County49666231America/Detroit
Merritt--Michigan(MI)Missaukee County49667231America/Detroit
Mesick--Michigan(MI)Wexford County49668231America/Detroit
Northport--Michigan(MI)Leelanau County49670231America/Detroit
Old Mission--Michigan(MI)Grand Traverse County49673231America/Detroit
Omena--Michigan(MI)Leelanau County49674231America/Detroit
Onekama--Michigan(MI)Manistee County49675231America/Detroit
Rapid City--Michigan(MI)Kalkaska County49676231
Reed City--Michigan(MI)Osceola County49677231America/Detroit
Sears--Michigan(MI)Osceola County49679231, 989America/Detroit
South BoardmanS BoardmanMichigan(MI)Kalkaska County49680231America/Detroit
Suttons BayPeshawbestownMichigan(MI)Leelanau County49682231America/Detroit
Thompsonville--Michigan(MI)Benzie County49683231
Traverse City--Michigan(MI)Grand Traverse County49684231, 810America/Detroit
Traverse City--Michigan(MI)Grand Traverse County49685231America/Detroit
Traverse City--Michigan(MI)Grand Traverse County49686231, 616America/Detroit
Tustin--Michigan(MI)Osceola County49688231America/Detroit
Wellston--Michigan(MI)Manistee County49689231
Williamsburg--Michigan(MI)Grand Traverse County49690231
Traverse City--Michigan(MI)Grand Traverse County49696231America/Detroit
Mackinaw City--Michigan(MI)Emmet County49701231, 906America/Detroit
Afton--Michigan(MI)Cheboygan County49705231America/Detroit
Alanson--Michigan(MI)Emmet County49706231
Bay ShoreCharlevoixMichigan(MI)Charlevoix County49711231America/Detroit
Boyne City--Michigan(MI)Charlevoix County49712231America/Detroit
Boyne Falls--Michigan(MI)Charlevoix County49713231America/Detroit
Brutus--Michigan(MI)Cheboygan County49716231
Burt Lake--Michigan(MI)Cheboygan County49717231America/Detroit
Carp Lake--Michigan(MI)Emmet County49718231, 906America/Detroit
Charlevoix--Michigan(MI)Charlevoix County49720231America/Detroit
Cheboygan--Michigan(MI)Cheboygan County49721616, 231America/Detroit
Conway--Michigan(MI)Emmet County49722231America/Detroit
Cross Village--Michigan(MI)Emmet County49723231America/Detroit
East Jordan--Michigan(MI)Charlevoix County49727231
Ellsworth--Michigan(MI)Antrim County49729231America/Detroit
Elmira--Michigan(MI)Antrim County49730231
GaylordTreetops Vil, Treetops VillageMichigan(MI)Otsego County49735989, 231America/Detroit
Good HartHarbor Spgs, Harbor SpringsMichigan(MI)Emmet County49737231America/Detroit
Harbor SpringsHarbor Point, Harbor Spgs, WequetonsingMichigan(MI)Emmet County49740231, 616America/Detroit
Indian River--Michigan(MI)Cheboygan County49749231America/Detroit
Levering--Michigan(MI)Emmet County49755231
Oden--Michigan(MI)Emmet County49764231America/Detroit
Pellston--Michigan(MI)Emmet County49769231America/Detroit
PetoskeyBay Harbor, Bay ViewMichigan(MI)Emmet County49770231America/Detroit
Pointe Aux PinsBois Blanc Is, Bois Blanc Island, Point Aux PinMichigan(MI)Mackinac County49775231America/Detroit
Beaver Island--Michigan(MI)Charlevoix County49782231, 906America/Detroit
Topinabee--Michigan(MI)Cheboygan County49791231America/Detroit
Vanderbilt--Michigan(MI)Otsego County49795989, 231America/Detroit
Walloon Lake--Michigan(MI)Charlevoix County49796231America/Detroit
Wolverine--Michigan(MI)Cheboygan County49799231America/Detroit
Lanse--Michigan(MI)Baraga County49946906, 231America/Detroit