Lookup Area Code 312, Central Office & Exchange Code 931

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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.

312931 is phone number first 6-digit, in the full phone number 312931xxxx, 312 is the Area Code, 931 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 312, determine the regional location

State: Illinois

Region: Illinois

Center City: Chicago

Area Code: 312 Area Code

State: Illinois

Center City: Chicago

Phone Used: (312) 931-

Primary City: Chicago, IL

Owned Company: Ameritech Illinois

County: Cook

Owned Type: Landline

Owned Carrier: Ameritech Illinois

Counties: Cook County

Full Zip Code: 60654, 60603

State & Region & County & City & Location map with Area Code

Too many area codes, map size limit, all area codes may not be displayed, only major area codes.

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312931 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, 312931-xxxx, 312 is the area code, 931 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, (312)931-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3129314003 3129314008 3129314002 3129314007 3129314000 3129314005 3129314009 3129314004 3129314001 3129314006 3129314013 3129314018 3129314012 3129314017 3129314010 3129314015 3129314019 3129314014 3129314011 3129314016 3129314023 3129314028 3129314022 3129314027 3129314020 3129314025 3129314029 3129314024 3129314021 3129314026 3129314033 3129314038 3129314032 3129314037 3129314030 3129314035 3129314039 3129314034 3129314031 3129314036 3129314043 3129314048 3129314042 3129314047 3129314040 3129314045 3129314049 3129314044 3129314041 3129314046 3129314053 3129314058 3129314052 3129314057 3129314050 3129314055 3129314059 3129314054 3129314051 3129314056 3129314063 3129314068 3129314062 3129314067 3129314060 3129314065 3129314069 3129314064 3129314061 3129314066 3129314073 3129314078 3129314072 3129314077 3129314070 3129314075 3129314079 3129314074 3129314071 3129314076 3129314083 3129314088 3129314082 3129314087 3129314080 3129314085 3129314089 3129314084 3129314081 3129314086 3129314093 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Above active phone number (312)931-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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