Lookup Area Code 312, Central Office & Exchange Code 503

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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.

312503 is phone number first 6-digit, in the full phone number 312503xxxx, 312 is the Area Code, 503 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) 503-

Primary City: Chicago, IL

Owned Company: Broadwing Communications

County: Cook

Owned Type: Landline

Owned Carrier: Broadwing Communications, LLC - IL

Counties: Cook County

Full Zip Code: 60611 (98%), 60603 (2%)

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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312503 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, 312503-xxxx, 312 is the area code, 503 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)503-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3125039003 3125039008 3125039002 3125039007 3125039000 3125039005 3125039009 3125039004 3125039001 3125039006 3125039013 3125039018 3125039012 3125039017 3125039010 3125039015 3125039019 3125039014 3125039011 3125039016 3125039023 3125039028 3125039022 3125039027 3125039020 3125039025 3125039029 3125039024 3125039021 3125039026 3125039033 3125039038 3125039032 3125039037 3125039030 3125039035 3125039039 3125039034 3125039031 3125039036 3125039043 3125039048 3125039042 3125039047 3125039040 3125039045 3125039049 3125039044 3125039041 3125039046 3125039053 3125039058 3125039052 3125039057 3125039050 3125039055 3125039059 3125039054 3125039051 3125039056 3125039063 3125039068 3125039062 3125039067 3125039060 3125039065 3125039069 3125039064 3125039061 3125039066 3125039073 3125039078 3125039072 3125039077 3125039070 3125039075 3125039079 3125039074 3125039071 3125039076 3125039083 3125039088 3125039082 3125039087 3125039080 3125039085 3125039089 3125039084 3125039081 3125039086 3125039093 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Above active phone number (312)503-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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