Search

Enter 10 Digit Phone Number
phone

Phone Directory 312-944 Detail

State Major City Time Zone
Illinois Chicago Central

Search

Find info about any number instantly!
Enter a 10 digit phone number
Example: (312) 944-5555 or 2012145555

Advertisement

Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-944 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9440###
312-9441###
312-9442###
312-9443###
312-9444###
312-9445###
312-9446###
312-9447###
312-9448###
312-9449###