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312 Area Code Cell Phones

This 312 page contains information about the (312) area code, located within the US. The 312 areacode is in IL.

According to NPA-NXX exchange data, here are the cities in -312-: Bensenville, Chicago, Cocoa, Des Plaines, Elk Grove Village, Hinsdale, La Grange Park, Northbrook, Roselle, Schaumburg, Westchester and Wheeling

Phone numbers, especially cell phones, can easily be "ported" now, but here are the main carriers and cell companies for area code 312.

  • Adbeep, Llc
  • Allegiance Telecom Of Illinois, Inc
  • American Messaging (Am), Inc.
  • Arch Wireless Holdings
  • At&t - Local
  • Beepermart, Inc.
  • Blue Licenses Holding, Llc
  • Broadband Office Communications
  • Broadwing Communications, Llc
  • Cellco Partnership Dba Verizon Wireless
  • Cellular Paging Usa, Inc.
  • Cimco Communications, Inc. - Il
  • Equivoice
  • Geotek Communications, Inc.
  • Global Crossing Local Services, Inc
  • Global Naps
  • Globalcom, Inc.-Il
  • Heartland Communications
  • Illinois Bell Tel Co
  • Integrated Communications Consultan
  • Kmc Telecom V
  • Level 3 Communications, Llc
  • Mci Metro Ats, Inc.
  • Mci Worldcom Communications, Inc. -
  • Metrocall
  • Multi Computer Systems, Inc.
  • Neutral Tandem-Illinois, Llc
  • Nextel Communications, Inc.
  • Ovation Communications Of Illinois,
  • Pac-West Telecomm, Inc.
  • Paetec Communications, Inc.
  • Rcn Telecom Services Of Illinois, I
  • Southwestern Bell Mobile Systems, L
  • Sprint Communications Company
  • Sprint Spectrum L.P.
  • T-Mobile Usa, Inc.
  • Tds Metrocom, Inc.
  • Teleport Commun Group
  • United States Cellular Corp.
  • Xo Illinois, Inc.
  • Ymax Communcations Corp.

The state in which 312 is predominately located is: IL. There are additional area codes within IL, including: 217, 224, 302, 309, 331, 618, 630, 708, 773, 779, 815 and 847.

Did you know? Here are some other interesting tidbits about 312:

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