ACS Deferment Customer Service Numbers Home» ACS» ACS Deferment Customer Service: +1 (800) 233-0557 Prospective School Partners: +1 (800) 443-0646 Student Loans: +1 (800) 233-0557 TTY: 711 Parent Loan For Undergraduate Students: +1 (800) 233-0557 Media Inquiries: +1 (717) 720-2509 International Service Number: +1 (717) 720-3100 Corporate Address: ACS Inc. Campus Products and Services P.O. Box 7060 Utica, NY 13504-7060EnquiryService Support: You can avail service support from ACS Deferment by following the given path.How To Contact ACS Deferment Via Message?Contact us: You can write a text message to ACS Deferment for any issue through the contact us page of www.aessuccess.org/. Problem Solution Problem Solution: ACS Deferment has provided answer to all possible quires on their web portal that covers common issues & problems, instructions, guidance, etc.Login To Your AccountLogin/Sign in: You can directly login to your account from hereACS Deferment is an Educational amenity catering department as well as a remittance facility for academy based credit, non-government educational financing amenities including Federal Family Education Loan Program loans. ACS Deferment introduced the executive facility to answer student’s queries and support remittance as well as note their location and contact number.