The DISN Customer Contact Center is available twenty four hours a day to assist DISN Customers with questions, escalations, or service issues.

DISN Global Service Center (DGSC) 
DSN: (312) 850-4790
CML: (800) 554-3476 or (614) 692-4790
DISA.DGSC@mail.mil

DSN Connection Approval Process Inquiries
(301) 225-2900
(301) 225-2901

General DSN Inquiries
disa.meade.ns.mbx.phone-dsn@mail.mil

DSN Directory Changes
Contact DSN to include your organization in the directory, or to notify us of any changes.