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Safe number

03-6626-2546 phone number information

Basic Information

Number Type
Landline (03)
Region
Tokyo
Carrier
Mizuho Bank, Ltd.

Number overview

03-6626-2546 is used by Mizuho Bank as the sender of SMS notifying customers that their paper-based direct-debit registration has been completed. We confirmed that Mizuho Bank's official FAQ explicitly states that completion notices are sent by SMS from 03-6626-2546 (as of 2026-08-03).

This site previously described the number as a fraud number sending fake Mizuho SMS. Re-verification against the official FAQ confirmed it is a legitimate sender, so we corrected the page.

What the SMS is

  • Completion notices for direct-debit registrations submitted by paper form

Care when you receive bank SMS

SMS in a bank's name can be either genuine notices or phishing. If unsure, do not open links in the SMS; log in directly via Mizuho Bank's official app or website instead. Suspect fraud if an SMS asks you to enter a PIN or one-time password.

Where to report or get help

  • Consumer Hotline: 188
  • Police consultation line: #9110
  • Ministry of Internal Affairs and Communications - Telecommunications Consumer Consultation Center: 03-5253-5900

Sources (official)

Frequently Asked Questions

I received an SMS from 03-6626-2546. Is it genuine?

Mizuho Bank's official FAQ lists this number as the sender of direct-debit completion SMS (confirmed as of 2026-08-03). If anything in the message looks off, do not open links; verify via the official app or website.

What if I opened a link in a suspicious bank SMS?

If you entered any information, contact the bank's official desk immediately to discuss freezing your card or account, and consult the police line (#9110).

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