← Back to Blog
TipsMay 6, 2026

How to Identify Unknown Callers on Your Family Phone

By The Robokiller Team

How to Identify Unknown Callers on Your Family Phone

Receiving calls from unknown numbers can be frustrating and potentially risky. Fortunately, there are several methods to identify these callers on your family phone.

What Does 'No Caller ID' Mean?

When you see 'No Caller ID' on your phone, it indicates that the caller has intentionally blocked their number from appearing. This is different from 'Unknown Caller,' which means your carrier couldn't retrieve the number. Both scenarios can be used by telemarketers or scammers. (asurion.com)

How to Identify Unknown Callers on iPhone

1. Use Built-in Features:

  • Silence Unknown Callers: This feature silences calls from numbers not in your contacts and sends them to voicemail. To enable it:

  • Go to Settings > Phone > Silence Unknown Callers.

  • Toggle it on.

  • Ask Reason for Calling: Introduced in iOS 26, this feature prompts unknown callers to state their name and reason for calling before your phone rings. To activate it:

  • Go to Settings > Phone > Screen Unknown Callers.

  • Select Ask Reason for Calling. (tomsguide.com)

2. Use Carrier Services:

  • AT&T ActiveArmor: This app provides spam call blocking and caller ID features. The premium version includes reverse number lookup and can identify some unknown callers. (reversephonelookup.org)

  • Verizon Call Filter: This app identifies incoming calls and warns about potential spam. The premium version includes a caller name ID feature that can identify callers not in your contacts. (reversephonelookup.org)

3. Use Third-Party Apps:

  • Truecaller: This app identifies unknown callers and blocks spam calls. It uses a community-based spam list to detect and block unwanted calls. (makeuseof.com)

  • TrapCall: This service unblocks private numbers and provides caller ID information. It also offers features like call recording and blocking unwanted numbers. (communityphone.org)

How to Identify Unknown Callers on Android

1. Use Built-in Features:

  • Block Calls from Unknown Numbers: This feature blocks calls from numbers not in your contacts. To enable it:
  • Open the Phone app.
  • Tap the three-dot menu > Settings > Block numbers.
  • Toggle on Block calls from unknown numbers. (idownloadblog.com)

2. Use Carrier Services:

  • T-Mobile Scam Shield: This app identifies and blocks scam calls. The premium version includes a feature called 'Name ID' that can identify unknown and blocked callers. (reversephonelookup.org)

3. Use Third-Party Apps:

  • Hiya: This app identifies unknown callers and blocks spam calls. It provides caller ID and spam protection features. (guidingtech.com)

How to Trace a No Caller ID Call

If you receive a call from a 'No Caller ID' number, you can try the following methods:

  • *Use 69: Dialing *69 after receiving a call can help you identify the last caller's number. Note that this service may be chargeable and limited to the U.S. (makeuseof.com)

  • *Use 57: This service traces the call and may help identify the caller. However, it may not always be effective, and some carriers may charge a fee. (avg.com)

  • Contact Your Carrier: Some carriers offer services to trace calls, but they may require a fee and may not always be effective. (avg.com)

How to Block Unknown Callers

On iPhone:

  • Silence Unknown Callers: This feature silences calls from numbers not in your contacts and sends them to voicemail. To enable it:
  • Go to Settings > Phone > Silence Unknown Callers.
  • Toggle it on. (support.apple.com)

On Android:

  • Block Calls from Unknown Numbers: This feature blocks calls from numbers not in your contacts. To enable it:
  • Open the Phone app.
  • Tap the three-dot menu > Settings > Block numbers.
  • Toggle on Block calls from unknown numbers. (idownloadblog.com)

Conclusion

Identifying unknown callers on your family phone can be achieved through built-in features, carrier services, and third-party apps. By utilizing these methods, you can enhance your phone's security and avoid unwanted calls.

Highlights:

  • I haven't answered a scam call in months - this hidden iPhone feature is why, Published on Wednesday, March 18

Frequently Asked Questions

Related articles

Live life spam-call-free.

Robokiller blocks 99% of spam calls and texts so you can take your phone back.

Try free for 7 days