Search

Enter 10 Digit Phone Number
phone

Phone Directory 312-309 Detail

State Major City Time Zone
Illinois Chicago Central

Search

Find info about any number instantly!
Enter a 10 digit phone number
Example: (312) 309-5555 or 2012145555

Advertisement

Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-309 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-3090###
312-3091###
312-3092###
312-3093###
312-3094###
312-3095###
312-3096###
312-3097###
312-3098###
312-3099###