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NIPSCO Retail Services To enroll in E.S.P., call toll-free, 1-866-777-9151, one of our representatives will promptly assist you. Remember, you can also enroll online! To enroll in Dusk to Dawn, call toll-free, 1-866-777-9151, one of our representatives will promptly assist you. Remember, you can also enroll online! For service, call toll-free, 1-866-777-9151. To report a gas leak, call the NIPSCO gas leak emergency number at 1-800-634-3524, using a phone away from your home, 24 hours a day. |
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