Search for Routing Transit Numbers of all Banks in the United States.

Key in first three chars of Bank eg. Ban for Bank of America

Key in first three characters of City eg. New for New York

102100675 Routing Transit Number (RTN) for Colorado Bank And Trust Company Main Office located at La Junta, Colorado, CO, 81050, United States, Street Address 301 COLORADO AVENUE, Telephone Number 719-384-8131, Servicing FRB Number 101000048.
Branch Information Last updated May 12, 2017
Current Routing Number: 102100675
Street Address: 301 Colorado Avenue
City: La Junta
State: Colorado, CO
Zip Code: 81050
Telephone Number: (719) 384-8131
Revision Date (MMDDYY): 022714
Previous Routing Number: 102100675
Office Code (O=Main B=Branch): O
Servicing FRB Number: 101000048
What is Routing Transit Number?
A Routing Transit Number (RTN) is a nine digits numerical codes used to identify an individual branch of a financial institution in United States (US). It appears on the bottom of negotiable instruments such as checks identifying the financial institution on which it was drawn. This code was designed to facilitate the sorting, bundling, and shipment of paper checks back to the drawer's (check writer's) account.

The Routing Number is used for domestic transfer. To make money transfer, the Routing Number is used together with the bank account number of the recipient. For international inward money transfer, a SWIFT code must be used together with a Routing Number and Account Number.

The number is used by Federal Reserve Banks to process Fedwire funds transfers, and by the Automated Clearing House to process direct deposits, bill payments, and other such automated transfers.

The RTN number is derived from the bank's transit number originated by the American Bankers Association, which designed it in 1910.

The format of Routing Number is as follows:


  • the first four two digits (AAAA) is the Federal Reserve Routing Symbol.
  • the next four digits (BBBB) is American Bankers Association (ABA) Institution Identifier.
  • the last one digit (C) is the check digit.