Lookup Area Code 312, Central Office & Exchange Code 251

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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.

312251 is phone number first 6-digit, in the full phone number 312251xxxx, 312 is the Area Code, 251 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) 251-

Primary City: Chicago, IL

Owned Company: Ameritech Illinois

County: Cook

Owned Type: Landline

Owned Carrier: Ameritech Illinois

Counties: Cook County

Full Zip Code: 60606 (28%), 60603 (26%), 60601 (21%), 60602 (19%), 60604 (4%), 60610 (3%)

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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312251 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, 312251-xxxx, 312 is the area code, 251 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)251-xxxx active phone numbers, contains used, unused, and possibly deregistered phone numbers.

3122518003 3122518008 3122518002 3122518007 3122518000 3122518005 3122518009 3122518004 3122518001 3122518006 3122518013 3122518018 3122518012 3122518017 3122518010 3122518015 3122518019 3122518014 3122518011 3122518016 3122518023 3122518028 3122518022 3122518027 3122518020 3122518025 3122518029 3122518024 3122518021 3122518026 3122518033 3122518038 3122518032 3122518037 3122518030 3122518035 3122518039 3122518034 3122518031 3122518036 3122518043 3122518048 3122518042 3122518047 3122518040 3122518045 3122518049 3122518044 3122518041 3122518046 3122518053 3122518058 3122518052 3122518057 3122518050 3122518055 3122518059 3122518054 3122518051 3122518056 3122518063 3122518068 3122518062 3122518067 3122518060 3122518065 3122518069 3122518064 3122518061 3122518066 3122518073 3122518078 3122518072 3122518077 3122518070 3122518075 3122518079 3122518074 3122518071 3122518076 3122518083 3122518088 3122518082 3122518087 3122518080 3122518085 3122518089 3122518084 3122518081 3122518086 3122518093 3122518098 3122518092 3122518097 3122518090 3122518095 3122518099 3122518094 3122518091 3122518096 3122518103 3122518108 3122518102 3122518107 3122518100 3122518105 3122518109 3122518104 3122518101 3122518106 3122518113 3122518118 3122518112 3122518117 3122518110 3122518115 3122518119 3122518114 3122518111 3122518116 3122518123 3122518128 3122518122 3122518127 3122518120 3122518125 3122518129 3122518124 3122518121 3122518126 3122518133 3122518138 3122518132 3122518137 3122518130 3122518135 3122518139 3122518134 3122518131 3122518136 3122518143 3122518148 3122518142 3122518147 3122518140 3122518145 3122518149 3122518144 3122518141 3122518146 3122518153 3122518158 3122518152 3122518157 3122518150 3122518155 3122518159 3122518154 3122518151 3122518156 3122518163 3122518168 3122518162 3122518167 3122518160 3122518165 3122518169 3122518164 3122518161 3122518166 3122518173 3122518178 3122518172 3122518177 3122518170 3122518175 3122518179 3122518174 3122518171 3122518176 3122518183 3122518188 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Above active phone number (312)251-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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