03 8720 7321 - 0387207321: Silent Call Reports

• Suspicious
• Scam

03 8720 7321 (0387207321) - 3 community reports of silent calls and suspicious activity. Callers hang up when answered.

Silent Call Reports for 03 8720 7321

Three contributors have reported unusual activity from 03 8720 7321 (also written as 0387207321), a Telstra local service number in Victoria. The most common pattern involves callers hanging up immediately when the call is answered, leaving only silence on the line. Two separate reports describe answering calls from 0387207321 to find dead air with no response from the caller.

One additional report flagged the number as displaying a potential fraud warning on the caller ID system, suggesting the number may have been flagged by telecommunications networks as suspicious activity.

What Happens When You Answer 03 8720 7321

Contributors who picked up calls from 03 8720 7321 describe a consistent pattern of silence. One contributor noted they answered the call only to hear complete silence, with no voice, background noise, or acknowledgment from the caller. Another report from September 2025 describes answering to "just dead air, super odd", with the caller making no attempt to communicate before disconnecting.

This type of silent call behaviour is commonly associated with callback scams or automated systems testing active phone numbers. Callers may be verifying that a number is in use before attempting follow-up contact or launching targeted scam campaigns.

Call Patterns and Timing

The three reports for 0387207321 span across multiple months, with calls received in March, September, and November 2025. One call from 03 8720 7321 was answered mid-morning in September, while another was received in early morning hours in November. The spacing between reports suggests either sporadic calls from the same source or intermittent callback testing activity.

What to Do If You Receive a Call from 03 8720 7321

If 03 8720 7321 calls you:

• Do not: Call the number back, as this confirms your number is active and may result in more calls or escalation to scam attempts
• Do: Let the call go to voicemail if you don't recognise the number
• Do: Block 0387207321 on your phone immediately after the first silent call
• Do: Be cautious of follow-up calls from similar numbers over the following days or weeks
• Do not: Engage if a second call comes through with an actual person, as the initial silent call may have been testing your number's validity

Silent Calls and Callback Scams

Silent calls from numbers like 03 8720 7321 are a known precursor to callback scams. The initial silent call serves to verify the phone number is active and monitored. Once confirmed, scammers may attempt follow-up contact impersonating government agencies, banks, or tech support. Some contributors report receiving silent calls followed days later by aggressive scam attempts from related numbers.

The Telstra local service allocation for 0387207321 suggests the number could be legitimate business use that's been spoofed or compromised, or it could be a scammer using a local number to appear more trustworthy.

How to Report 03 8720 7321

If you receive silent calls or suspicious activity from 03 8720 7321, report the number through these Australian channels:

• ACMA (Australian Communications and Media Authority): Report the number at acma.gov.au - ACMA investigates persistent silent calls and callback scam networks
• Scamwatch: Lodge a report at scamwatch.gov.au if the silent calls are followed by scam attempts
• Do Not Call Register: Add 03 8720 7321 to your personal block list at donotcall.gov.au to reduce future unwanted contact
• Your phone provider: Contact Telstra directly to report the number and request blocking assistance
• Reverseau: Contribute your experience with 0387207321 to help other Australians identify this activity

Frequently Asked Questions