Search

Enter 10 Digit Phone Number
phone

Phone Directory 312-920 Detail

State Major City Time Zone
Illinois Chicago Central

Search

Advertisement

Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-920 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-9200###
312-9201###
312-9202###
312-9203###
312-9204###
312-9205###
312-9206###
312-9207###
312-9208###
312-9209###