Bank routing number ยท Medway, Massachusetts
Charles River Bank Routing Number (ABA): 211373018
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The Charles River Bank routing number is 211373018. It is the primary ABA routing transit number on the bank's FFIEC National Information Center record, refreshed here on October 27, 2026.
Charles River Bank at a glance
Its CET1 capital ratio was 12.46% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $336.1M
- CET1 ratio, Q2 2026
- 12.46%
- Deposit insurance
- FDIC
- Regulator
- Federal Reserve
- Domestic offices
- 4 FDIC institution directory, current count
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1915
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Charles River Bank routing numbers on file
| Routing number | Type | Status | Source |
|---|---|---|---|
| 211373018 | Primary ABA | Active | FFIEC NIC |
Record refreshed here on October 27, 2026. NIC holds one primary number per bank; Charles River Bank publishes any other numbers it uses itself.
What the digits mean
The first two digits, 21, place this number in the Federal Reserve Bank of Boston's district (District 1): prefixes 21 to 32 are the district numbers assigned to thrift institutions. Digits five through eight, 7301, 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 Charles River 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 Charles River Bank checks or in its online banking. Ask the bank for wire instructions (www.charlesriverbank.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 Charles River Bank
Charles River Bank is headquartered in Medway, Massachusetts and was established in 1915. It is in the BOSTON-CAMBRIDGE-NEWTON, MA-NH metro area. It reported $336.1M in total assets and $312.6M in deposits for Q2 2026, the 77th largest of the 89 banks headquartered in Massachusetts. It reports 4 domestic offices. Its deposits have been FDIC insured since 1986. Its primary federal regulator is the Federal Reserve.
What the digits in 211373018 mean
The first four digits, 2113, are the Federal Reserve routing symbol. The prefix 21 places the number in the 1st Federal Reserve District (Boston), a range the ABA plan set aside for thrift institutions. That is also the district where the bank is headquartered. Digits five through eight, 7301, 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 5 + 7 x 9 + 12 = 90, a multiple of 10, so 211373018 is a well-formed routing number. A mistyped digit almost always breaks that sum.
What is the Charles River Bank routing number?
The Charles River Bank routing number is 211373018. It is the primary ABA routing transit number registered to Charles River Bank, headquartered in Medway, MA. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 27, 2026.
What is the Charles River Bank wire routing number?
This page lists the primary routing number registered to Charles River Bank. The record does not say whether the bank uses the same number for wire transfers. Confirm the wire routing number with Charles River Bank before sending a wire.
Is ABA number 211373018 the routing number for Charles River Bank?
Yes. It is the primary routing number registered to Charles River Bank.
Which bank uses routing number 211373018?
It belongs to Charles River Bank, headquartered in Medway, MA. It is the bank's primary ABA routing number (FDIC certificate 26602).
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Regulator records: FDIC BankFind (cert 26602) · FFIEC NIC profile (RSSD 947776)