MSMuhammad Shahid

Secret Codes: IMEI & CarrierSecret Codes guide

#634# on iPhone: Turn Off T-Mobile Scam ID

By Muhammad Shahid · · 3 min read

Quick answer

#634#: Stop labelling calls as Scam Likely. #634# switches Scam ID off, so calls arrive with no network-applied scam label at all. Worth knowing if a number you actually need keeps getting flagged. Before turning the whole feature off, check whether Scam Block is also on, because Scam Block is what rejects calls, and #632# turns that off separately.

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Key facts
Code#634#
What it doesStop labelling calls as Scam Likely.
Published forT-Mobile
TypeCarrier specific

Stop labelling calls as Scam Likely. This page explains what #634# does, how to use it on an iPhone and which carriers it applies to.

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What does #634# do?

#634# switches Scam ID off, so calls arrive with no network-applied scam label at all.

Worth knowing if a number you actually need keeps getting flagged. Before turning the whole feature off, check whether Scam Block is also on, because Scam Block is what rejects calls, and #632# turns that off separately.

You can confirm what is currently active with #787# (#STS#), the Scam Shield status code.

Important: With Scam ID off you lose the warning label on suspected fraud calls. Turning it back on is a single call to #664#.

How do I use #634#?

  1. Open the Phone app and tap Keypad.
  2. Type #634# exactly as written.
  3. Press the green Call button and wait for the result.

Which carriers does this apply to?

Published forT-Mobile
TypeCarrier specific
Good to knowT-Mobile consumer lines.
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Frequently asked questions

What does #634# do on iPhone?

Stop labelling calls as Scam Likely. #634# switches Scam ID off, so calls arrive with no network-applied scam label at all. Worth knowing if a number you actually need keeps getting flagged.

What else should I know about #634#?

Before turning the whole feature off, check whether Scam Block is also on, because Scam Block is what rejects calls, and #632# turns that off separately. You can confirm what is currently active with #787# (#STS#), the Scam Shield status code.

What are the steps for #634#?

1. Open the Phone app and tap Keypad. 2. Type #634# exactly as written. 3. Press the green Call button and wait for the result.

Where do I use #634#?

On the keypad of the Phone app.

Do I need to press Call after typing #634#?

Yes. Type it on the Phone keypad, then press the green Call button.

Is #634# a hidden or secret code?

No. It is a published service, not a hidden menu. iPhones do not have Android-style engineering menus.

Which carriers does #634# work on?

It is published for T-Mobile. T-Mobile consumer lines.

Is there anything to watch out for with #634#?

With Scam ID off you lose the warning label on suspected fraud calls. Turning it back on is a single call to #664#.

Does #634# work on Android phones too?

It is handled by the carrier or service rather than the iPhone, so it is not tied to one phone brand. Check with your carrier.

Will #634# work outside the US?

It is published for US carriers and services, so do not count on it abroad. Ask your carrier before you travel.

What if #634# does not work on my iPhone?

Check that it applies to your carrier first, because carriers decide which services they offer and can change them. If it should apply to your line, contact your carrier.

What is related to #634#?

#664#: Turn On T-Mobile Scam ID. #ONI# — label suspected scam calls without blocking them.

Sources

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