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McGraw Hill

Customer Service Number

Toll-freeCompany-published number

US customer service and orders

1-800-338-3987
United StatesMonday–Friday 8am–8pm ET
Official source Checked Oct 21, 2026

Toll-free in the listed region. Mobile airtime and international charges may apply.

Independent directory. Slow Latitudes lists contacts for McGraw Hill. Calls go directly to the number shown.

Contact options

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