Customer Service


Phone: (800) 338-3987
Fax: (800) 953-8691

Hours of Operation:
Monday-Friday: 8:00 AM to 6:00 PM EST

By Mail:
McGraw Hill
P.O. Box 182605
Columbus, OH 43218

PreK–12 Technical Support


Hours of Operation:
Monday-Friday: 7:00 AM to 8:00 PM EST

Phone: (800) 437-3715
Online: Submit a Support Request

Need ALEKS Support?

Higher Ed Technical Support


Hours of Operation:
Sunday: 12:00 PM to 12:00 AM EST
Monday-Thursday: 24 hrs
Friday: 12:00 AM to 9:00 PM EST
Saturday: 10:00 AM to 8:00 PM EST

Phone: (800) 331-5094
Online: Submit a Support Request
Chat: Chat with a Representative

Need ALEKS Support?