Search

Enter 10 Digit Phone Number
phone

Phone Directory 312-540 Detail

State Major City Time Zone
Illinois Chicago Central

Search

Find info about any number instantly!
Enter a 10 digit phone number
Example: (312) 540-5555 or 2012145555

Advertisement

Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-540 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-5400###
312-5401###
312-5402###
312-5403###
312-5404###
312-5405###
312-5406###
312-5407###
312-5408###
312-5409###