102006119
FIRST BANK
✓ Valid Checksum
Active
- Institution Name
- FIRST BANK
- Institution Type
- Commercial Bank
- City / State
- LAKEWOOD, CO
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
1
3
×7
0
0
×1
2
2
×3
0
0
×7
0
0
×1
6
6
×3
1
3
×7
1
7
×1
9
9
Sum = 3 + 0 + 2 + 0 + 0 + 6 + 3 + 7 + 9 = 30
30 ÷ 10 = 3 remainder 0 → Valid routing number
Quick Reference
Other Routing Numbers for FIRST BANK
Large banks often have different routing numbers by state or region.
- 082903536 AR
- 073902766 IA
- 073922940 IA
- 101102438 KS
- 053112563 NC
- 053174019 NC
- 253170062 NC
- 253170525 NC
- 253171728 NC
- 053207957 NC
- 053012760 NC
- 053112178 NC
- 053112330 NC
- 231270777 NJ
- 021213313 NJ
- 021214163 NJ
- 031207885 NJ
- 031207924 NJ
- 031207966 NJ
- 031918831 NJ