Lookup Area Code 312, Central Office & Exchange Code 437

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.

312437 is phone number first 6-digit, in the full phone number 312437xxxx, 312 is the Area Code, 437 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) 437-

Primary City: Chicago, IL

Owned Company: United States Cellular Corp. - Illinois

County: Cook

Owned Type: Cell Number

Owned Carrier: United States Cellular Corp. - Illinois

Counties: Cook County

Full Zip Code: 60607 (67%), 60622 (33%)

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.

Submit a survey statistics service about area code 312, Central Office & Exchange Code 437

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How do you know Phone Lookuper?

312437 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, 312437-xxxx, 312 is the area code, 437 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)437-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3124370003 3124370008 3124370002 3124370007 3124370000 3124370005 3124370009 3124370004 3124370001 3124370006 3124370013 3124370018 3124370012 3124370017 3124370010 3124370015 3124370019 3124370014 3124370011 3124370016 3124370023 3124370028 3124370022 3124370027 3124370020 3124370025 3124370029 3124370024 3124370021 3124370026 3124370033 3124370038 3124370032 3124370037 3124370030 3124370035 3124370039 3124370034 3124370031 3124370036 3124370043 3124370048 3124370042 3124370047 3124370040 3124370045 3124370049 3124370044 3124370041 3124370046 3124370053 3124370058 3124370052 3124370057 3124370050 3124370055 3124370059 3124370054 3124370051 3124370056 3124370063 3124370068 3124370062 3124370067 3124370060 3124370065 3124370069 3124370064 3124370061 3124370066 3124370073 3124370078 3124370072 3124370077 3124370070 3124370075 3124370079 3124370074 3124370071 3124370076 3124370083 3124370088 3124370082 3124370087 3124370080 3124370085 3124370089 3124370084 3124370081 3124370086 3124370093 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Above active phone number (312)437-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.