FROST BANK-HOUSTON Routing Number in SAN ANTONIO, TX
1 FROST BANK-HOUSTON routing number found in SAN ANTONIO, TX. Click any routing number to view full details — for ACH transfers, direct deposits, and wire payments.
FROST BANK-HOUSTON — SAN ANTONIO, TX — Select Routing Number
1 routing number
FROST BANK-HOUSTON Routing Number in SAN ANTONIO, TX
FROST BANK-HOUSTON has 1 routing number registered in SAN ANTONIO, TX with the American Bankers Association (ABA) and the Federal Reserve E-Payments Routing Directory. Each 9-digit routing number uniquely identifies FROST BANK-HOUSTON's SAN ANTONIO processing location within the US payment network. BankZop sources all routing data directly from official ABA records — click any routing number above to view its full details and copy it instantly.
The FROST BANK-HOUSTON routing number for SAN ANTONIO, TX is used for setting up direct deposits, authorising ACH payments, initiating domestic wire transfers, and check processing. Always use the specific routing number assigned to the location where your account was opened.
What to Do After Finding the FROST BANK-HOUSTON SAN ANTONIO Routing Number
- Direct deposit: Provide the 9-digit routing number along with your account number to your employer's payroll system, the IRS (for tax refunds), or any government benefit agency.
- ACH bill payment: Enter the routing number when setting up electronic payments to utilities, insurance providers, or subscription services that debit your FROST BANK-HOUSTON account.
- Wire transfer: Confirm with FROST BANK-HOUSTON's wire department whether this ABA routing number applies to wire transfers — many banks use a different wire routing number.
- Check verification: Cross-check the routing number printed at the bottom-left of your FROST BANK-HOUSTON check against the number shown here to confirm accuracy.
Why FROST BANK-HOUSTON May Have This Routing Number in SAN ANTONIO
FROST BANK-HOUSTON uses a single routing number for SAN ANTONIO, TX — assigned by the ABA to identify this specific FROST BANK-HOUSTON processing location within the Federal Reserve's payment system. This 9-digit code is what routes ACH debits, credits, and wire transfers to the correct FROST BANK-HOUSTON office for settlement.
ACH vs Wire Transfer — Which Routing Number to Use
This is one of the most common questions about FROST BANK-HOUSTON SAN ANTONIO routing numbers:
| Transfer Type | Routing Number | Settlement |
|---|---|---|
| Direct Deposit / ACH | ABA routing number (this page) | 1–2 business days (same day for Same Day ACH) |
| Domestic Wire Transfer | Confirm with FROST BANK-HOUSTON directly — may differ | Same business day (real-time via Fedwire) |
| International Wire | SWIFT/BIC code required — find it here | 1–5 business days |
About FROST BANK-HOUSTON in SAN ANTONIO, TX
FROST BANK-HOUSTON serves customers in SAN ANTONIO, TX through its local banking network. The routing number listed on this page are the ABA-registered identifier for FROST BANK-HOUSTON's SAN ANTONIO operations — used by the Federal Reserve's payment infrastructure to route ACH and wire transactions to the correct financial institution.
To browse FROST BANK-HOUSTON routing numbers in other cities in TX, visit the FROST BANK-HOUSTON TX directory. For all FROST BANK-HOUSTON states, see the FROST BANK-HOUSTON routing number directory. For international transfers, use the SWIFT Code Lookup. For Indian bank transfers, use the IFSC Code Lookup.
Data sourced from the American Bankers Association (ABA) and the Federal Reserve E-Payments Routing Directory. Last reviewed Jun 2026 by BankZop Editorial Team.
Frequently Asked Questions — FROST BANK-HOUSTON Routing Numbers in SAN ANTONIO
- Direct deposit — payroll, IRS tax refunds, Social Security, VA benefits
- ACH transfers — online bill payments, electronic debits, bank transfers
- Domestic wire transfers — same-day settlement via Fedwire (may use a separate wire routing number)
- Check payments — printed at the bottom-left of every FROST BANK-HOUSTON personal check
- ACH debit authorisations — recurring payments to utilities, subscriptions, insurance
