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123.Net Inc.
Industry Telecommunications
Predecessor LECMI Inc., Internet 123 Inc.
Founded March 5, 1995 (1995-03-05)
Headquarters Southfield, Michigan, United States
Services Fixed line telephone, Internet service provider, Fixed wireless, data center colocation
Number of employees
Website 123.net

123.Net Inc., also known as 123Net, is a telephone,[1] Internet, and colocation provider headquartered in Southfield, Michigan, in the United States. It was one of the first Competitive Local Exchange Carriers to interconnect with AT&T[2] and Verizon[3] for the purposes of offering services through the public switched telephone network. The company operates as an independent and privately held telecommunications provider with services in the midwestern United States.

123Net is most known for its Southfield and Grand Rapids based data centers (DC1–DC4) and its extensive wireless and wireline networks in Michigan.


123Net was founded primarily as a dialup ISP that focused on residential internet services. The company has since exited most residential service offerings and is now a business provider of telecommunications services.


123Net has acquired assets or bought the following companies' networks:

  • T2 Communications of Holland, MI in April 2015 H
  • Michigan Network Services in October 2014[4]
  • MICA.Net in July 2014[5]
  • West Michigan Internet Services (WMIS) in January 2011[6]
  • 2020 Communications in February 2010 (Wireless Washtenaw, some assets later sold to Air Advantage)[6][7]
  • Waypoint Telecommunications and Waypoint Fiber Networks in July 2010 (Purchase fiber assets)
  • Zing Networks (Acquired wireless assets in September 2009)[8]


In February 2013 it was announced that 123Net will open a new data center of over 100,000 square feet in Southfield, Michigan[9]


  1. ^ Telecommunication Systems Division (May 2, 2012). "Toshiba and 123Net Certify Interoperability of IPedge and Strata CIX Business Telephone Systems With 123Net SIP Trunking" (Press release). Toshiba America Information Systems Inc. Retrieved June 4, 2012. 
  2. ^ Staff (September 18, 2000). "Interconnection Agreement Under Sections 251 and 252 of the Telecommunications Act of 1996" (PDF). AT&T. Retrieved June 4, 2012. 
  3. ^ Staff (May 24, 2007). "Interconnection Agreement Between Verizon and Local Exchange Carriers of Michigan, Inc. Mpsc Case No. U-15318" (PDF). Verizon. Retrieved June 4, 2012. 
  4. ^ http://www.123.net/123net-welcomes-michigan-network-services/
  5. ^ http://www.123.net/123-net-announces-acquisition-of-mica-nets-customers-2/
  6. ^ a b Lamont, Lisa (March 11, 2010). "123Net Continues Expansion with Acquisition of Ann Arbor Internet Service Provider's Wireless Network Assets" (Press release). 123Net. Retrieved June 4, 2012. 
  7. ^ Zimmer, Scott (May 1, 2012). "Air Advantage Announces Acquisition of Approximately 400 Residential and Business Wireless Customers from 123.Net in Western Washtenaw County" (PDF) (Press release). Air Advantage. Retrieved June 4, 2012. 
  8. ^ Lamont, Lisa (October 19, 2009). "123Net Expands Communications Portfolio with Acquisition of 4G Wireless Provider Zing Networks" (Press release). 123Net. Retrieved June 4, 2012. 
  9. ^ "123.Net to Open New Data Center Facility in Southfield Michigan" (Press release). February 21, 2013. Retrieved February 23, 2013. 

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