211070256
COMMONWEALTH CO-OP
✓ Valid Checksum
Active
- Institution Name
- COMMONWEALTH CO-OP
- Institution Type
- Commercial Bank
- City / State
- HYDE PARK, MA
Supported Transaction Types
✗ ACH Transfers
Direct deposit, bill pay, person-to-person transfers. Processed in 1–3 business days.
✓ Wire Transfers
Real-time, same-day settlement via Fedwire. Used for large or time-sensitive transfers.
✓ Check Processing
Printed on the bottom-left of checks. Used to route paper and electronic check payments.
Note: Some banks use a separate routing number for wire transfers. Always confirm wire routing numbers directly with your bank before initiating a wire transfer.
ABA Checksum Validation
Every ABA routing number includes a built-in check digit (the 9th digit) that allows banks to detect transcription errors automatically. The checksum uses a weighted formula: multiply each digit by 3, 7, 1, 3, 7, 1, 3, 7, 1 and the sum must be divisible by 10.
×3
2
6
×7
1
7
×1
1
1
×3
0
0
×7
7
49
×1
0
0
×3
2
6
×7
5
35
×1
6
6
Sum = 6 + 7 + 1 + 0 + 49 + 0 + 6 + 35 + 6 = 110
110 ÷ 10 = 11 remainder 0 → Valid routing number
Quick Reference
Other Routing Numbers for COMMONWEALTH CO-OP
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