People's United Bank Routing Number: M&T Bank Merger Guide

What is the People's United Bank routing number?

People's United Bank used routing number 221170186 for its Connecticut-based accounts and had additional routing numbers for branches across the northeastern United States. Founded in 1842, People's United was one of the largest regional banks in New England.

M&T Bank completed its acquisition of People's United Financial in April 2022 in a deal valued at approximately $8.3 billion. The merger expanded M&T Bank's footprint significantly into Connecticut, southeastern New York, and Massachusetts.

M&T Bank merger and account conversion

M&T Bank converted all People's United Bank accounts over a conversion weekend in the fall of 2022. Former People's United branches were rebranded as M&T Bank, and customers received new M&T account details including updated routing numbers.

The legacy People's United routing number 221170186 is no longer active for new transactions. M&T Bank uses its own set of state-specific routing numbers, with 022000046 being commonly used for New York-based accounts.

How to find your M&T Bank routing number

Log into M&T Online Banking or the M&T Mobile Banking app to view your current routing and account numbers. Former People's United customers now have M&T accounts with M&T routing numbers.

You can also find your routing number on M&T Bank checks, by calling M&T at 1-800-724-2440, or by visiting an M&T branch. M&T uses different routing numbers by region, so verify the one specific to your account.

Updating direct deposits and payments

Since the People's United to M&T conversion has been completed, ensure all recurring payments, direct deposits, and automatic transfers are using your M&T Bank routing number. Any remaining references to the old People's United routing number should be updated.

Wire transfers through M&T may use a different routing number than ACH transactions. Confirm both your ACH and wire routing numbers through M&T's online banking portal or by contacting customer service.

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