02 3815 5503 - 0238155503: Bank Impersonation and Silent Call Reports

• Uncertain
• Scam

Community reports for 02 3815 5503 (0238155503) describe NAB impersonation calls and garbled silent calls. Callers falsely claim to be from NAB about US money transfers.

Bank Impersonation and Silent Call Reports for 02 3815 5503

Three contributors have reported suspicious activity from 02 3815 5503 (also written as 0238155503), a NSW local service number allocated to Symbio Networks. The reports reveal a pattern combining bank impersonation tactics with silent call behaviour, suggesting potential fraud activity targeting Australian bank customers.

One contributor received a call from 02 3815 5503 claiming to be from the National Australia Bank (NAB) regarding an unauthorised money transfer to the United States. The caller had an Indian accent and attempted to initiate a conversation about the supposed transfer. The contributor, who does not hold a NAB account, immediately ended the call. This type of impersonation attack typically aims to trick recipients into confirming personal details or authorising fraudulent transactions.

What Callers from 02 3815 5503 Do

Contributors report two distinct calling patterns from this number. The impersonation attempt involved a caller falsely claiming NAB affiliation and discussing unauthorised US transfers without any prior context. The second pattern involves garbled voice calls that hang up abruptly when answered, characteristic of silent call or callback scam probing.

The silent call variant reported on 02 3815 5503 featured an unintelligible voice that disconnected immediately, a common technique used to test whether a number is active and monitored before follow-up fraud attempts. A separate missed call from 0238155503 with no voicemail further suggests indiscriminate calling patterns typical of automated scam campaigns.

Report Patterns and Timing

The three reports span late February 2026, with calls arriving across different times and channels. One call was answered and generated the impersonation report, one was answered but only produced garbled audio and an immediate hang-up, and one was missed without voicemail. This mixed pattern suggests either multiple attackers using the same spoofed number or a campaign testing various calling strategies on the same target list.

What to Do If You Receive a Call from 02 3815 5503

If 02 3815 5503 calls you:

• Do not: Confirm your name, account details, or any personal information; return the call to this number; engage with requests about money transfers or bank security
• Do: Hang up immediately without responding; block the number on your phone; verify any banking claims by calling your actual bank using the number on your bank card or statement
• If it's a garbled/silent call: Do not press any keys or speak; simply end the call and block the number to prevent callback scams

Banks like NAB never initiate contact to discuss security issues via unsolicited calls, and they will never ask you to confirm sensitive information over the phone. If you're concerned about your account, contact your bank directly using their official phone number.

How to Report 02 3815 5503

Report this number and your experience to the following Australian authorities:

• Scamwatch: scamwatch.gov.au - Report the scam attempt with details of what the caller claimed
• ACMA (Australian Communications and Media Authority): acma.gov.au - Report the silent calls and call patterns
• Your bank: Contact NAB or your actual bank directly to report the impersonation attempt
• ReportCyber: cyber.gov.au - For suspected fraud or identity theft risks
• Reverseau: Add your own report here to help other Australians identify this number

Frequently Asked Questions