Company Story
1985 - ADTRAN, Inc. founded by Mark Smith and Lonnie McMillian
1987 - Introduced first T1 multiplexer product
1994 - IPO (Initial Public Offering)
1997 - Acquired Timeplex Corporation
2004 - Acquired the broadband access business of Siemens
2006 - Acquired the assets of Allied Telesis' access products division
2011 - Acquired Bluesocket, a provider of virtual wireless LAN solutions
2012 - Acquired the Nokia Siemens Networks fixed line broadband access business
2021 - Merged with ADVA Optical Networking to form ADTRAN Holdings, Inc.