G4 Communications
One Sundial Avenue
Manchester, NH 03103

Corporate: 603.625.0555
Toll Free: 888-840-4487
Fax: 603.647.7576

    Customer Care Phone: 603-703-0401

    Customer Care hours: Monday-Friday 8am to 7pm, Saturdays 9am to 3pm, Sundays 10am to 4pm.
    For emergencies, please call Customer Care 24 hours, 7 days a week and you will be given an option to talk to our 24 hour regional dispatch center.

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