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(877) 782-6739 (option 1) (Hours: M-F, 6am to 6pm PT)
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(800) 399-3971
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Endicia
(800) 576-3279 x130 (Hours: M - F 6am to 5pm PT)
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UPS
Customer Service: (800) 742-5877
API Technical Support: (800) 247-9035
Knowledge Base & Contact Phone Numbers
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UPS Mail Innovations
(800) 500-2224
Direct E-mail
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FedEx & FedEx SmartPost
1 (800) 463-3339
Phone Number Department Directory
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