Company:  TANDEM COMMUNICATIONS, IN ...
Form Type:  D
Filing Date:  10/9/2019 
CIK:  0001790731 
Address:  650 CASTRO ST., SUITE 120-267 
City, State, Zip:  MOUNTAIN VIEW, California 94041 
Telephone:  650-380-4407 
Fiscal Year:  12/31 
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  FORM D