Open Bank Routing Number (ABA): 122043958

Open Bank at a glance

Its CET1 capital ratio was 12.10% at Q2 2026, above regulatory requirements.

Total assets, Q2 2026

$2.75B

CET1 ratio, Q2 2026

12.10%

Deposit insurance

FDIC

Regulator

FDIC

Domestic offices

17 FDIC institution directory, current count

Latest call report

Q2 2026, FFIEC 051

Established

2005

Full financial profile · Is Open Bank safe? · Open Bank call report · Branch locations

What the digits mean

The first two digits, 12, place this number in the Federal Reserve Bank of San Francisco's district (District 12). Digits five through eight, 4395, identify the institution within that district. The last digit, 8, is a check digit, and the number passes the standard check: weight the nine digits 3, 7, 1, 3, 7, 1, 3, 7, 1 and the sum is a multiple of 10.

Before you send money to Open Bank

A routing number tells the payment network which financial institution holds an account. You give it with an account number for ACH transfers through the automated clearing house, such as direct deposit, bill pay and transfers from a checking account, which usually settle in one to two business days. An international wire to a US account normally needs the bank's SWIFT code as well.

Match this number against the one on your Open Bank checks or in its online banking. Ask the bank for wire instructions (www.myopenbank.com). Our record does not show whether this number receives wires. The Federal Reserve's E-Payments Routing Directory shows it: its Fedwire participant search lists the numbers that can receive Fedwire transfers, and its FedACH search lists those that receive ACH payments. How to confirm any routing number.

About Open Bank

Open Bank is headquartered in Los Angeles, California and was established in 2005. It is in the LOS ANGELES-LONG BEACH-ANAHEIM, CA metro area. It reported $2.75B in total assets and $2.37B in deposits for Q2 2026, the 34th largest of the 113 banks headquartered in California. It reports 17 domestic offices. Its deposits have been FDIC insured since 2005. Its primary federal regulator is the FDIC. 30 other banks and credit unions headquartered in Los Angeles have a routing number listed here.

What the digits in 122043958 mean

The first four digits, 1220, are the Federal Reserve routing symbol. The prefix 12 places the number in the 12th Federal Reserve District (San Francisco). That is also the district where the bank is headquartered. Digits five through eight, 4395, identify the institution within its Federal Reserve district. The last digit, 8, is a check digit. Weighting the digits 3, 7 and 1 in turn gives 3 x 10 + 7 x 11 + 13 = 120, a multiple of 10, so 122043958 is a well-formed routing number. A mistyped digit almost always breaks that sum.

What is the Open Bank routing number?

The Open Bank routing number is 122043958. It is the primary ABA routing transit number registered to Open Bank, headquartered in Los Angeles, CA. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 25, 2026.

What is the Open Bank wire routing number?

This page lists the primary routing number registered to Open Bank. The record does not say whether the bank uses the same number for wire transfers. Confirm the wire routing number with Open Bank before sending a wire.

Is ABA number 122043958 the routing number for Open Bank?

Yes. It is the primary routing number registered to Open Bank.

Which bank uses routing number 122043958?

It belongs to Open Bank, headquartered in Los Angeles, CA. It is the bank's primary ABA routing number (FDIC certificate 57944).

Routing numbers in Los Angeles, CA

Bank

City National Bank: 122016066

Bank

Banc of California: 122238200

Bank

Cathay Bank: 122203950

Bank

Bank of Hope: 122041235

Bank

Hanmi Bank: 122039399

Bank

Preferred Bank: 122042205

Bank

SMBC Manubank: 122226076

Bank

CTBC Bank Corp. (USA): 122210406

All routing numbers in California