Trans Canada Pipelines Customer Service Phone Numbers Customer service: 1.800.661.3805 Community Relations: 1.855.895.8754 Ethics Help-Line: 1.888.920.2042 Investor Relations: 1.800.340.5024 Communications / Media Relations: 1.800.608.7859 Landowner Help Line: 1.866.372.1601 Natural Gas Storage (regulated): 1.800.608.7859 Crossing Applications: 1.877.872.5177 Natural Gas Storage (unregulated): 1.403.920.5583 Natural Gas Pipeline Systems: 1.800.661.3805 Power Marketing & Trading: 1.508.871.1855   Trans Canada Pipelines Headquarters