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312 AREA CODE

The 312 area code applies to phone numbers from the state of Illinois. To learn more about the 312 area code, go to http://en.wikipedia.org/wiki/Area_code_312

Area codes were introduced in the United States by the Bell Systems, in 1947. The first direct dial long distance phone call occurred in 1951.

Area codes are also known as Numbering Plan Areas (NPAs) and formerly known as STD codes in the UK. These are necessary (for the most part) only when dialed from outside the code area, from mobile phones, and (especially within North America) from within overlay plans.

Area codes usually indicate geographical areas within one country that are covered by perhaps hundreds of telephone exchanges, although the correlation to geographical area is becoming obsolete.

The area code is usually preceded in the dial string by either the national access code ("0" for many countries, "1" in USA and Canada) or the international access code and country code.

Illinois, 312 area code.
Currently listed complaints filed

Area code 312 for the state of Illinois

Phone NumberStateCarrierLine TypeWire Center
312-201-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-202-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-203-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-204-0000ILXO ILLINOIS INCLand LineWood Dale
312-204-0000ILXO ILLINOIS INCLand LineWood Dale
312-204-0000ILXO ILLINOIS INCLand LineWood Dale
312-205-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-206-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-207-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-208-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-209-0000ILVERIZON WIRELESS - ILWirelessElgin
312-210-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-211-0000ILMULTIPLE OCN LISTINGLand LineOdd Ball
312-212-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-212-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-212-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-212-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-212-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-212-0000ILXO ILLINOIS INCLand LineWood Dale
312-212-0000ILXO ILLINOIS INCLand LineWood Dale
312-212-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-212-0000ILXO ILLINOIS INCLand LineWood Dale
312-212-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-212-0000ILSIGECOM LLC - ILLand LineNaperville
312-213-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-214-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-215-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-217-0000ILUNITED STATES CELLULAR CORPORATION - ILLINOISWirelessLombard
312-218-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-220-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-222-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-223-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-224-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-225-0000ILAMERITECH ILLINOISLand LineChicago-calumet
312-226-0000ILAMERITECH ILLINOISLand LineChicago-monroe
312-228-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-229-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-229-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-229-0000ILMPOWER COMMUNICATIONS CORPORATION - ILLand LineWheeling
312-229-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-229-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-229-0000ILMPOWER COMMUNICATIONS CORPORATION - ILLand LineWheeling
312-229-0000ILMPOWER COMMUNICATIONS CORPORATION - ILLand LineWheeling
312-229-0000ILMPOWER COMMUNICATIONS CORPORATION - ILLand LineWheeling
312-229-0000ILMPOWER COMMUNICATIONS CORPORATION - ILLand LineWheeling
312-229-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-229-0000ILPAETEC COMMUNICATIONS INC - ILLand LineChicago-congress Pkw
312-230-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-231-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-232-0000ILAMERICAN MESSAGING (AM) INCPaging SystemChicago
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-233-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-234-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-235-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-235-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-235-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-235-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-235-0000ILPAETEC COMMUNICATIONS INC - ILLand LineChicago-congress Pkw
312-235-0000ILGLOBALCOM INC - ILLand LineChicago
312-235-0000ILGLOBALCOM INC - ILLand LineChicago
312-235-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-235-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-235-0000ILAMERITECH ILLINOISLand LineChicago-wabash
312-236-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-237-0000ILPAETEC COMMUNICATIONS INC - ILLand LineChicago-congress Pkw
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-237-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-238-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-239-0000ILAT&T LOCAL - NYLand LineChicago-canal East
312-239-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-239-0000ILOVATION COMMUNICATIONS OF ILLINOIS INCLand LineWheeling
312-239-0000ILGLOBALCOM INC - ILLand LineChicago
312-239-0000ILAT&T LOCAL - NYLand LineChicago-canal East
312-239-0000ILAT&T LOCAL - NYLand LineChicago-canal East
312-239-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-239-0000ILXO ILLINOIS INCLand LineWood Dale
312-239-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-239-0000ILAT&T LOCAL - NYLand LineChicago-canal East
312-240-0000ILAMERITECH ILLINOISLand LineChicago-lakeshore
312-242-0000ILTELEPORT COMMUNICATIONS GROUP - CHICAGOLand LineChicago-congress Pkw
312-242-0000ILTELEPORT COMMUNICATIONS GROUP - CHICAGOLand LineChicago-congress Pkw
312-242-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-242-0000ILGLOBALCOM INC - ILLand LineChicago
312-242-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-242-0000ILGLOBALCOM INC - ILLand LineChicago
312-242-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-242-0000ILGLOBALCOM INC - ILLand LineChicago
312-242-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-242-0000ILGLOBALCOM INC - ILLand LineChicago
312-242-0000ILGLOBALCOM INC - ILLand LineChicago
312-243-0000ILAMERITECH ILLINOISLand LineChicago-monroe
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILXO ILLINOIS INCLand LineWood Dale
312-244-0000ILXO ILLINOIS INCLand LineWood Dale
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-244-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-245-0000ILAMERITECH ILLINOISLand LineChicago-illinois And Dearborn
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-246-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-247-0000ILGLOBALCOM INC - ILLand LineChicago
312-249-0000ILUSA MOBILITY WIRELESS INCPaging SystemBurr Ridge
312-250-0000ILUSA MOBILITY WIRELESS INCPaging SystemBurr Ridge
312-251-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-252-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-252-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILPAETEC COMMUNICATIONS INC - ILLand LineChicago-congress Pkw
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-253-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-254-0000ILXO ILLINOIS INCLand LineWood Dale
312-254-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILSBC INTERNET SERVICES INCLand LineChicago-canal East
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-255-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-256-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-256-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-256-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-256-0000ILCIMCO COMMUNICATIONS INC - ILLand LineChicago
312-256-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-258-0000ILAMERITECH ILLINOISLand LineChicago-canal East
312-259-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILXO ILLINOIS INCLand LineWood Dale
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-260-0000ILMCIMETRO ATS INCLand LineBensenville
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-261-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-262-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-262-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-262-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-262-0000ILCBEYOND COMMUNICATIONS LLC - ILLand LineChicago-wabash
312-262-0000ILCBEYOND COMMUNICATIONS LLC - ILLand LineChicago-wabash
312-262-0000ILCBEYOND COMMUNICATIONS LLC - ILLand LineChicago-wabash
312-262-0000ILCBEYOND COMMUNICATIONS LLC - ILLand LineChicago-wabash
312-262-0000ILNEXTEL COMMUNICATIONS INCWirelessBuffalo Grove
312-262-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-263-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-264-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILACCESS ONE INC - ILLand LineChicago
312-265-0000ILCOMCAST PHONE OF ILLINOIS LLC - ILLand LineChicago
312-265-0000ILCOMCAST PHONE OF ILLINOIS LLC - ILLand LineChicago
312-265-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineChicago
312-265-0000ILACCESS ONE INC - ILLand LineChicago
312-266-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-267-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-267-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-267-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-267-0000ILGLOBALCOM INC - ILLand LineChicago
312-267-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-267-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-267-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-267-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-267-0000ILNEXTEL COMMUNICATIONS INCWirelessBuffalo Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-268-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-269-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-271-0000ILUSA MOBILITY WIRELESS INCPaging SystemBurr Ridge
312-272-0000ILUSA MOBILITY WIRELESS INCPaging SystemBurr Ridge
312-274-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-275-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-276-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-277-0000ILALLEGIANCE TELECOM INC - ILLand LineChicago
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-278-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-278-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-278-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-278-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
312-279-0000ILMCIMETRO ATS INCLand LineChicago-w Jackson Blvd
312-280-0000ILAMERITECH ILLINOISLand LineChicago-superior
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILAMERITECH ILLINOISLand LineChicago-franklin
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-281-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-282-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessMt Prospect
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILPAETEC COMMUNICATIONS INC - ILLand LineChicago-congress Pkw
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-283-0000ILGLOBAL CROSSING LOCAL SERVICES INC - ILLand LineChicago
312-284-0000ILXO ILLINOIS INCLand LineChicago-zone 1
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILLEVEL 3 COMMUNICATIONS LLC - ILLand LineChicago
312-285-0000ILSBC INTERNET SERVICES INCLand LineChicago-canal East
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-285-0000ILSPRINT SPECTRUM LPWirelessBridgeview
312-286-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessMt Prospect
312-287-0000ILNEXTEL COMMUNICATIONS INCWirelessBuffalo Grove
312-288-0000ILMCIMETRO ATS INCLand LineChicago-w Jackson Blvd
312-288-0000ILMCIMETRO ATS INCLand LineChicago-w Jackson Blvd
312-288-0000ILMCIMETRO ATS INCLand LineChicago-w Jackson Blvd
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312-399-0000ILSPRINT SPECTRUM LPWirelessBridgeview
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312-401-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
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312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-402-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessBurr Ridge
312-403-0000ILVERIZON WIRELESS - ILWirelessHickory Hills
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312-406-0000ILNEW CINGULAR WIRELESS PCS LLC - ILWirelessSchaumburg
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312-416-0000ILMCI WORLDCOM COMMUNICATIONS INC - ILLand LineElk Grove Village
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312-418-0000ILUSA MOBILITY WIRELESS INCPaging SystemBurr Ridge
312-419-0000ILAMERITECH ILLINOISLand LineChicago-franklin
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312-423-0000ILBROADWING COMMUNICATIONS LLC - ILLand LineElk Grove
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312-427-0000ILAMERITECH ILLINOISLand LineChicago-wabash
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312-428-0000ILDENALI SPECTRUM LICENSE LLCWirelessSchaumburg
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312-428-0000ILYMAX COMMUNICATIONS CORPORATION - ILLand LineOak Brook
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312-428-0000ILYMAX COMMUNICATIONS CORPORATION - ILLand LineOak Brook
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312-433-0000ILAMERITECH ILLINOISLand LineChicago-monroe
312-433-0000ILAMERITECH ILLINOISLand LineChicago-monroe
312-433-0000ILAMERITECH ILLINOISLand LineChicago-monroe
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