Lookup Area Code 312, Central Office & Exchange Code 554

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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.

312554 is phone number first 6-digit, in the full phone number 312554xxxx, 312 is the Area Code, 554 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) 554-

Primary City: Chicago, IL

Owned Company: Ameritech Illinois

County: Cook

Owned Type: Landline

Owned Carrier: Ameritech Illinois

Counties: Cook County

Full Zip Code: 60605 (42%), 60606 (25%), 60604 (21%), 60607 (5%), 60616 (4%), 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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312554 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, 312554-xxxx, 312 is the area code, 554 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)554-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3125542003 3125542008 3125542002 3125542007 3125542000 3125542005 3125542009 3125542004 3125542001 3125542006 3125542013 3125542018 3125542012 3125542017 3125542010 3125542015 3125542019 3125542014 3125542011 3125542016 3125542023 3125542028 3125542022 3125542027 3125542020 3125542025 3125542029 3125542024 3125542021 3125542026 3125542033 3125542038 3125542032 3125542037 3125542030 3125542035 3125542039 3125542034 3125542031 3125542036 3125542043 3125542048 3125542042 3125542047 3125542040 3125542045 3125542049 3125542044 3125542041 3125542046 3125542053 3125542058 3125542052 3125542057 3125542050 3125542055 3125542059 3125542054 3125542051 3125542056 3125542063 3125542068 3125542062 3125542067 3125542060 3125542065 3125542069 3125542064 3125542061 3125542066 3125542073 3125542078 3125542072 3125542077 3125542070 3125542075 3125542079 3125542074 3125542071 3125542076 3125542083 3125542088 3125542082 3125542087 3125542080 3125542085 3125542089 3125542084 3125542081 3125542086 3125542093 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Above active phone number (312)554-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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