contact us

Send Us A Message

Give Us A Call

CALL CENTER
Mon – Fri 8:00am – 5:00pm MT
Main Phone: 605-923-1405
Toll-Free: 888-923-1400
Overseas DSN: 675-6303

CU*TALK Phone Banking: 866-923-1448

Fax: 605-923-3960

Routing Number: 291479291

REPORT LOST OR STOLEN CARD
Mon – Fri 8:00am – 5:00pm MT
605-923-1405 or 888-923-1400

After Business Hours
Sentinel FCU Cards:
800-682-6075
ReportMyCards.com

Rapid City Telco FCU Cards:
Debit Cards: 800-236-2442
Credit Cards: 800-808-7230

TRANSACTION ASSISTANCE
Mon – Fri 8:00am – 5:00pm MT
605-923-1405 or 888-923-1400

After Hours Assistance
Sentinel FCU Cards:
888-526-0404

Rapid City Telco FCU Cards:
Debit Cards: 800-236-2442
Credit Cards: 800-808-7230

ACTIVATE YOUR SENTINEL FCU CARD
800-411-6390
ActivateMyCards.com

CHANGE YOUR PIN
If you know your current PIN, you can visit any Sentinel ATM to immediately get a new PIN for your Sentinel ATM, Debit and chip-enabled Credit Cards.
If you forgot your PIN or would like a new PIN, you can call 877-746-6746, anytime, to change the PIN for any of your Sentinel cards. Your new PIN will be available within two business days.

Mailing Address

Sentinel Federal Credit Union
PO Box 700
Box Elder, SD 57719

Locations & Hours