Check the FIRSTBANK SOUTHWEST routing numbers list. FIRSTBANK SOUTHWEST has 2 active routing numbers.
FIRSTBANK SOUTHWEST routing number is a nine-digit numeric code printed on the bottom of checks that is used to facilitate the electronic routing of funds (ACH transfer) from one bank account to another.
Click on the routing number to get information like telephone number and delivery address for the check.
Routing Number Address City State Zip
111308057 P O BOX 32552 AMARILLO TX 79120
111322910 P O BOX 32552 AMARILLO TX 79120
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