Telephone Area 312. Page 8.
Prefix: +1312
This prefix is distributed within the state Illinois
The largest city in the region is Chicago
Time Zone: Central
Winter time: UTC-6
Summer time: UTC-5
Below on the map, there is indicated the largest city in the telephone area +1-312-...-.... Illinois Chicago.
Phone numbers +1-312-YYY-YYYY
Company | District | Major City | Prefix |
---|---|---|---|
Sprint Spectrum L.p. | Cook | Chicago, IL | +1-312933-SSSS |
Cook | +1-312934-SSSS | ||
Ameritech Illinois | Cook | Chicago, IL | +1-312935-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312936-SSSS |
Cook | +1-312937-SSSS | ||
Ameritech Illinois | Cook | Chicago, IL | +1-312938-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312939-SSSS |
Cook | +1-312940-SSSS | ||
Usa Mobility Wireless | Cook | Chicago, IL | +1-312941-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312942-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312943-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312944-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312945-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312946-SSSS |
Ameritech Illinois | Chicago, IL | +1-312947-SSSS | |
Ovation Communications Of Illinois | Cook | Chicago, IL | +1-312948-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312949-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312951-SSSS |
New Cingular Wireless PCS | Cook | Chicago, IL | +1-312952-SSSS |
New Cingular Wireless PCS | Cook | Chicago, IL | +1-312953-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312954-SSSS |
Rcn Telecom Services Of Illinois | Cook | Chicago, IL | +1-312955-SSSS |
Cook | +1-312956-SSSS | ||
Ameritech Illinois | Cook | Chicago, IL | +1-312957-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312960-SSSS |
New Cingular Wireless PCS | Cook | Chicago, IL | +1-312961-SSSS |
Global Crossing Local Services-il | Cook | Chicago, IL | +1-312962-SSSS |
Usa Mobility Wireless | Cook | Chicago, IL | +1-312963-SSSS |
Cook | +1-312964-SSSS | ||
Cellco Partnership DBA Verizon Wireless | Cook | Chicago, IL | +1-312965-SSSS |
Cellco Partnership DBA Verizon Wireless | Cook | La Grange Park, IL | +1-312968-SSSS |
Cellco Partnership DBA Verizon Wireless | Cook | La Grange Park, IL | +1-312969-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312970-SSSS |
Cook | +1-312971-SSSS | ||
New Cingular Wireless PCS | Cook | Chicago, IL | +1-312972-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312974-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312977-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312979-SSSS |
Teleport Communications Group - Chicago | Cook | Chicago, IL | +1-312980-SSSS |
Ovation Communications Of Illinois | Cook | Chicago, IL | +1-312981-SSSS |
Usa Mobility Wireless | Cook | Chicago, IL | +1-312982-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312983-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312984-SSSS |
Ovation Communications Of Illinois | Cook | Chicago, IL | +1-312985-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312986-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312987-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312988-SSSS |
New Cingular Wireless PCS | Du Page | Hinsdale, IL | +1-312990-SSSS |
New Cingular Wireless PCS | Cook | Wheeling, IL | +1-312991-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312992-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312993-SSSS |
Ovation Communications Of Illinois | Cook | Chicago, IL | +1-312994-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312996-SSSS |
Ameritech Illinois | Cook | Chicago, IL | +1-312997-SSSS |
Cook | +1-312998-SSSS | ||
Cygnus Telecommunications Corporation | Chicago, IL | +1-312999-SSSS |