FIRST BANK
Routing Number: 122239131
600 JAMES S MCDONNELL BOULEVARD
HAZELWOOD, MO 63042-0000
(800) 760-2265
11 E Lockwood
Webster Groves, MO 63119
1526 West Highway 70 South Service Road
Wentzville, MO 63385
2462 Taylor Road
Wildwood, MO 63040
9801 Westheimer Road 10th Floor, Suite 1060
Houston, TX 77042
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How does the Clearing House Interbank Payments System (CHIPS) relate to ABA routing numbers?
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Do credit unions have ABA routing numbers?
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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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