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.

2319910003 2319910008 2319910002 2319910007 2319910000 2319910005 2319910009 2319910004 2319910001 2319910006 2319910013 2319910018 2319910012 2319910017 2319910010 2319910015 2319910019 2319910014 2319910011 2319910016 2319910023 2319910028 2319910022 2319910027 2319910020 2319910025 2319910029 2319910024 2319910021 2319910026 2319910033 2319910038 2319910032 2319910037 2319910030 2319910035 2319910039 2319910034 2319910031 2319910036 2319910043 2319910048 2319910042 2319910047 2319910040 2319910045 2319910049 2319910044 2319910041 2319910046 2319910053 2319910058 2319910052 2319910057 2319910050 2319910055 2319910059 2319910054 2319910051 2319910056 2319910063 2319910068 2319910062 2319910067 2319910060 2319910065 2319910069 2319910064 2319910061 2319910066 2319910073 2319910078 2319910072 2319910077 2319910070 2319910075 2319910079 2319910074 2319910071 2319910076 2319910083 2319910088 2319910082 2319910087 2319910080 2319910085 2319910089 2319910084 2319910081 2319910086 2319910093 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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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