US ABA Routing Number

Overview

Detects potential U.S. ABA routing numbers used by banks and financial institutions to identify the originating financial institution in transactions.

Format

9 numeric characters (0–9) with no letters or special characters. Optional separators (hyphens, slashes, or spaces) may be present but are ignored during evaluation. Leading zeros are permitted.

Checksum

Yes

Whole word match

Yes

Confidence level

High

Proximity

300 characters

Keywords