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National Grid Customer service Phone Number: 800-870-1664
Customer Service Contact Link: https://www1.nationalgridus.com/CorporateHub
National Grid is dedicated to serve the customers by providing the safe and reliable energy and communities. The company is regarded as the largest investor-owned energy organization serving the customers of New York, Massachusetts and Rhode Island. You are free to get assistance from the specialist of National Grid Customer Service at any point of time. Simply call Customer Service Helpline Number of National Grid and get the assistance based on your requirement.