American Banker Association routing transit numbers (ABA RTN)

An ABA RTN is a 9-digit number printed on checks to identify the bank on which it is drawn.

Validator	Description
ABA Routing Transit Number Checksum	Checks for the ABA RTN validator-specific position-weighted checksum.

Regex expressions	Regex description	Score
`\b((0[0-9])\|(1[0-2])\|(2[1-9])\|(3[0-2])\|(6[1-9])\|(7[0-2])\|80)([0-9]{7})\b`	Accepts: 000000000–129999999 210000000–329999999 610000000–729999999 800000000–809999999 Rejects: 130000000–209999999 330000000–609999999 730000000–799999999 810000000+	1

Regex expressions

Regex description

Score

\b((0[0-9])|(1[0-2])|(2[1-9])|(3[0-2])|(6[1-9])|(7[0-2])|80)([0-9]{7})\b

Accepts:

Rejects:

None