Lookup Area Code 231, Central Office & Exchange Code 991

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The area code indicates the regional location of the phone number. According to NANP, there are 405 area codes in North America.

Of these, 326 are in the US, 42 are in Canada, 17 are non-geographic virtual number, and 20 are others(mostly Caribbean).

The number of area codes is different for each area, in the future, the area with the most phone number users will have more area codes.

231991 is phone number first 6-digit, in the full phone number 231991xxxx, 231 is the Area Code, 991 is the Central Office & Exchange Code, xxxx is the subscriber number.

All North American phone numbers are in a three-part format.

Determine the phone number format, it can accurately lookup phone number information.

According to area code 231, determine the regional location

State: Michigan

Region: Michigan

Center City: Grant

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231991 is the first 6-digit of the phone number, it can only lookup the regional location.

Lookup a phone number, the number must be complete. The full phone number is 10-digit, 231991-xxxx, 231 is the area code, 991 is the central office number, telephone exchange code, the last four digits, xxxx is the subscriber number, real phone users number.

Below is the complete, (231)991-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

2319912003 2319912008 2319912002 2319912007 2319912000 2319912005 2319912009 2319912004 2319912001 2319912006 2319912013 2319912018 2319912012 2319912017 2319912010 2319912015 2319912019 2319912014 2319912011 2319912016 2319912023 2319912028 2319912022 2319912027 2319912020 2319912025 2319912029 2319912024 2319912021 2319912026 2319912033 2319912038 2319912032 2319912037 2319912030 2319912035 2319912039 2319912034 2319912031 2319912036 2319912043 2319912048 2319912042 2319912047 2319912040 2319912045 2319912049 2319912044 2319912041 2319912046 2319912053 2319912058 2319912052 2319912057 2319912050 2319912055 2319912059 2319912054 2319912051 2319912056 2319912063 2319912068 2319912062 2319912067 2319912060 2319912065 2319912069 2319912064 2319912061 2319912066 2319912073 2319912078 2319912072 2319912077 2319912070 2319912075 2319912079 2319912074 2319912071 2319912076 2319912083 2319912088 2319912082 2319912087 2319912080 2319912085 2319912089 2319912084 2319912081 2319912086 2319912093 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Above active phone number (231)991-xxxx list, from the telephone operator number database. Phone Lookuper does not provide number identification services. If you have any questions about this information, welcome to contact us.


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