STN services are currently unavailable.

Hours of Operation

STN is available 24 hours a day, 7 days a week, with the exception of a maintenance downtime window:

  • First Saturday of each month, STN is unavailable from 17:00 (5:00 PM) to 01:00 (1:00 AM) Sunday EDT

CAS Customer Service

Hours: Monday 9:00 a.m. - Friday 12:00 a.m. EST (midnight)

Email: help@cas.org

Phone: 1 800.753.4227 (North America), +1 614.447.3731 (if calling outside the United States)