Search

Enter 10 Digit Phone Number
phone

Phone Directory 312-381 Detail

State Major City Time Zone
Illinois Chicago Central

Search

Find info about any number instantly!
Enter a 10 digit phone number
Example: (312) 381-5555 or 2012145555

Advertisement

Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-381 Chicago, IL Ameritech Illinois Cook Landline 05/10/1999

Other Series For Prefixes

312-3810###
312-3811###
312-3812###
312-3813###
312-3814###
312-3815###
312-3816###
312-3817###
312-3818###
312-3819###