Contact us, Branch hours, locations and holiday hours: Star One Credit Union, Silicon Valley
For banking by telephone, to find an ATM, or to speak to a Star One phone representative for assistance with this website, please call us at 866-543-5202 or 408-543-5202.
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Routing number: 321177968
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Contact Us

Set up a Video or Phone Appointment, and we bring Star One's Virtual Branch to your computer or smartphone. You can also contact us by chat, phone or email.

Make an Appointment

Discover the convenience of Video and Phone Appointments

Meet with a Star One Virtual Branch representative on your computer or smartphone—from wherever you might be.

Most services are now available without visiting a Star One branch—apply for loans, open new accounts, have a personal consultation, and more.

Contact us by Web or Email

Use this secure form to send us general questions, feedback or reservations for our educational workshops.

To send us documents, or to receive a reply containing confidential information (such as Social Security Numbers, account numbers, financial statements), use our Secure Email Message Center—regular email is not secure.


Star One Branch Hours & Locations

Branch hours:

  • Monday, Tuesday, Thursday: 9 AM–5 PM
  • Wednesday: 10 AM–5 PM
  • Friday: 9 AM–6 PM
  • Saturday (Stevens Creek, Blossom Hill and Big Basin branches only): 9 AM–2 PM

Call Us

Toll-free at (866) 543-5202 or (408) 543-5202

Regular Call Center Hours

  • Monday-Friday: 7 AM-7 PM PT
  • Saturday-Sunday: 9 AM-5 PM PT

Holiday Call Center Hours

  • Christmas, New Year's and Thanksgiving: closed
  • Day before Thanksgiving: 7 AM-6 PM PT
  • New Year's Eve: 7 AM-5 PM PT
  • Christmas Eve and other holidays: 9 AM-5 PM PT

Our Shared Branch call center handles after-hours calls and can assist you with general questions and basic transactions.


Fax: (408) 543-5203
Mailing address: P.O. Box 3643
Sunnyvale, CA 94088-3643

Use our Locator to find ATMs, CO-OP ATMs (including 7-Eleven stores), and Shared Branches.


2024 Holidays—Star One branches will be closed

  • Monday, May 27: Memorial Day
  • Wednesday, June 19: Juneteenth Day
  • Thursday, July 4: Independence Day
  • Monday, September 2: Labor Day
  • Monday, October 14: Columbus Day
  • Monday, November 11: Veterans Day
  • Thursday, November 28: Thanksgiving Day
  • Friday, November 29: Day after Thanksgiving Day
  • Wednesday, December 25: Christmas Day