GROUP SERVICE EMPLOYEES FEDERAL CREDIT UNION
Routing Number: 303986012
P.O. BOX 21258
TULSA, OK 74121-0000
(918) 551-3800
1215 S Boulder Ave
Tulsa, OK 74119
Is it safe to share my ABA routing number with others?
Can I use a routing number for online transactions?
How can I verify the accuracy of an ABA routing number?
Is an ABA routing number the same as an account number?
How do I use my bank's ABA routing number for direct deposits?
Frequently asked questions (FAQs) related to bank routing numbers and bank routing information:
frequently asked questions (FAQs) about Bank ABA routing numbers and their purposes:
Frequently asked questions (FAQs) about international bank routing codes

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