How to Unblock a Number on T-Mobile: Check Every Block List

You expected a call or a text, and the phone stayed quiet. On a T-Mobile line, that quiet can come from the blocked list on the phone, from Scam Shield on the account, or from both at once.

How to Unblock a Number on T-Mobile means checking every list that can stop that person. Clear the number on the phone, take it off any Scam Shield block, and add it to Allowed numbers if Scam Block is on. Ask them for a new call once those lists are clear.

The steps below cover an iPhone, Phone by Google, and a Samsung Galaxy, then the lists inside the T-Life app and the dial codes that control Scam Block. Texts, voicemail, a prepaid line, and a number that stays quiet after you unblock it are all here too.

Where Can a T-Mobile Number Stay Blocked?

A block you set from a text thread lives on the phone. A block you set in Scam Shield lives on the T-Mobile line, and it moves with you to a new phone. Scam Block is a third switch: it stops calls T-Mobile has labeled Scam Likely before they reach you, even when you never typed that number into a block list.

Use this map to see which list matches the silence you are hearing, then clear only that row.

Allowed numbers is the free way to let one person through while Scam Block stays on for everyone else. Those calls are let through the network. Turning Scam Block off is the wider switch, and it does not empty a block you set by hand.

How to Unblock a Number on T-Mobile in the Phone

Start with the list stored on the phone. That block stays in place even when Scam Shield is off, and it is the one people set from a message thread without opening T-Life.

Blocked Contacts on an iPhone

On iOS 26, Apple’s steps for Blocked Contacts put every blocked person in one Settings list. A block you set in Phone, Messages, or FaceTime shows up in that same place.

1. Open the Settings app.
2. Tap Privacy & Security.
3. Tap Blocked Contacts.
4. Tap Edit. If the number was never saved as a contact, open Unknown contacts first, then tap Edit.
5. Tap the delete button beside the person or the number.
6. Tap Unblock.

If Blocked Contacts is not under Privacy & Security, open Settings and search for Blocked Contacts, or look under Phone. While the block is on, that person can still leave a voicemail, and you do not get a notice for it. Messages you send them, and messages they send you, are not delivered. They are not told that a call or a text was stopped.

Blocked Numbers in Phone by Google

Pixel phones and many other Android phones use Phone by Google. Some of these steps need Android 6.0 or later. To unblock a number in Phone by Google, open the blocked list and confirm the clear.

1. Open the Phone app.
2. Tap More.
3. Tap Settings, then Blocked numbers.
4. Next to the number, tap Clear, then tap Unblock.

Calls that came in while the number was blocked do not show in call history after you unblock it. If visual voicemail is on, a blocked caller cannot leave a voicemail either. The Unknown switch on that same screen refuses private or unidentified numbers only, and it still lets through numbers that are not saved in your contacts.

Block Numbers on a Samsung Galaxy

A Galaxy phone keeps its own Block numbers list, separate from Phone by Google. Samsung’s steps to unblock a number apply on Galaxy phones with Android 9.0 or later.

1. Open the Phone app.
2. Tap More options, the three dots.
3. Tap Settings, then Block numbers.
4. Tap the red Minus beside the number you want to allow.

If the person is saved in Contacts, open that contact, tap More, and tap Unblock contact. Clearing one of those two places does not always clear a block you set inside the Messages app, so check Spam and blocked there if texts are still missing.

How to Clear a Number in T-Mobile Scam Shield

The phone list and Scam Shield do not share one switch. A number you removed in Settings can still be stopped on the network, and a number you never blocked by hand can be stopped because Scam Block is on.

Allowed Numbers While Scam Block Stays On

Scam ID shows “Scam Likely” on a call T-Mobile treats as a scam, and it can also label a call as telemarketing, political, or potential spam. Scam Block goes further and stops every Scam Likely call before it reaches your phone. T-Mobile warns that this can stop a call you still want, and you can turn it off any time.

You do not have to turn it off for one person. Add them to Allowed numbers. That tool is part of Scam Shield Basic, so you do not need the paid add-on. Follow T-Mobile’s Scam Shield steps in T-Life on a postpaid line.

1. Open T-Life and sign in.
2. Open the Manage tab, or Account if that is the name on your app.
3. Under your devices, choose Scam Shield.
4. Select Allowed numbers, then the three-dot menu.
5. Enter the 10-digit number, or pick it from the call list, and tap Add.

If the screen is titled Blocked and allowed numbers instead, open the Allowed tab and add the caller from there. To take someone off the allow list later, select that number and tap Delete. T-Life’s Scam Shield controls are for postpaid accounts. A prepaid line does not manage this list in the app.

The Personal Block List and Voicemail List

Blocking a number you choose, and sending a number straight to voicemail, sit on Scam Shield Premium. T-Mobile lists ScamShield Premium at $4 per line on its benefits page. The account holder or an authorized user is the person who can add that plan in T-Life, under Scam Shield, then Upgrade to Scam Shield Premium.

The Personal Block List is stored on the network, so it follows the line to a new phone. You will not get those calls, but they still show on the Recent calls page inside Scam Shield. Send to voicemail is different: the phone does not ring, and the caller can still leave a message. It is not a block.

• Blocked tab: Open Scam Shield, then Blocked and allowed numbers, then Blocked, and clear the number’s block so it leaves that list.
• Voicemail list: Open Send directly to voicemail, tap the three-dot menu, select the number, and tap Delete.
• A number you are adding: Premium can block from Reverse Number Lookup: enter the number, tap Lookup, then Block Calls. The icon turns magenta when it joins the Personal Block List.

If you never bought Premium, those two lists are not on the account, and the block you are fighting is on the phone or in Scam Block. Downgrading later is under Scam Shield Settings, then Subscription, then Remove Scam Shield Premium.

Scam Block Dial Codes for Your Line

The codes below work from the T-Mobile phone on postpaid and prepaid lines. Dial the code like a call and wait for the confirmation text. On a DIGITS number, turn Scam Block on by dialing 611 and asking a mobile expert, rather than relying on the app.

Turning Scam Block off does not delete a Personal Block List, a send-to-voicemail entry, or the blocked list on the phone. Check those if the number is still quiet after the code goes through.

What Happens to Calls and Texts After You Unblock?

A cleared number can call and text you again from that moment. The gap from the days it was blocked does not fill in. On Phone by Google, those earlier calls stay out of call history. On an iPhone, texts were not delivered in either direction while the block was on, so the old thread does not grow a pile of delayed messages.

Voicemail is the part that surprises people. An iPhone block still lets the person leave a voicemail, with no notice to you, which is why a blocked number can keep showing up in the voicemail box. Phone by Google declines the call, and with visual voicemail on that caller cannot leave a message. A Scam Block stop happens before the call reaches the phone at all. A Premium send-to-voicemail rule does the opposite: the call skips the ring and the greeting still records.

Texts have a second filter that you do not manage number by number. T-Mobile has screened spam SMS and MMS on the network since 2014, at no extra charge, and that screen is separate from your block list. Reporting a junk text does not, by itself, stop that sender. On a recent iPhone, open the conversation, scroll to the bottom, and choose Report Junk, then Delete and Report Junk. On most Android phones, press and hold the conversation in Messages, then Block, Report Spam, and OK.

You can also forward the untouched message to 7726. Do not edit it or add a comment. There is no charge, and the forward does not count against your plan. T-Mobile replies by text once the report is in. If the phone has no forward button, copy the message, start a new text to 7726, and paste it. To stop that sender on your line, block the number as well.

Why Can a Cleared Number Stay Silent?

Work down this list when the phone list is empty and the person still cannot reach you. One leftover switch is enough to keep the ring from sounding.

IF THE CALL STILL DOES NOT RING

• Phone list: On an iPhone, open Unknown contacts inside Blocked Contacts, because an unsaved number hides there.
• Network list: Check the Blocked tab, Send directly to voicemail, and Allowed numbers. A wanted caller who is missing from Allowed numbers can still be stopped by Scam Block.
• Family Allowances: If that add-on is on the line, look for a blocked number or a time-of-day limit, since either one overrides the unblock you just did.
• Another app: Turn off any extra call-blocking or spam-filter app, then test again before you change Scam Shield.
• Their side: Dial *67, then the full 11-digit number. If that call connects, your caller ID is what their phone is refusing.
• The whole line: If every number fails, restart the phone and dial 611 from the T-Mobile line so support can check the line itself.

Anonymous callers are a special case. You can refuse a hidden number on the phone, including with the Unknown switch in Phone by Google, but the network will still pass a caller who has blocked their caller ID. To hide your own number on one call, dial *67 before the number.

Match the digits, too. The Allow list wants the 10-digit number. If you blocked someone from Recents, the saved entry may include a leading 1 or a +1. Look for both forms before you decide the list is empty.

Frequently Asked Questions

Does the Other Person Find Out When You Unblock a Number?

No notice goes out when you unblock a number on T-Mobile. A block already keeps the contact from learning that a call or a text was stopped, and neither the Phone app nor T-Life sends them a message when you remove it. The first sign on their side is a new call that rings or a new text that arrives.

Do Old Calls and Texts Come Back After You Unblock?

Old calls do not come back in Phone by Google. Any call that arrived while the number was blocked stays out of call history after you unblock it. On an iPhone, messages were not delivered in either direction during the block, so that gap in the thread stays empty until someone sends a new text.

Can You Unblock Texts and Keep Calls Blocked?

On an iPhone, no. Blocked Contacts is one list for Phone, Messages, and FaceTime, so removing someone opens all three. On an Android phone, the Phone app’s blocked-numbers list and the block inside Messages are separate, so you can clear texts in Messages and leave the call block in place.

How Do You Unblock a Number on T-Mobile Prepaid?

Clear the number in the Phone app, because T-Life does not manage Scam Shield on a prepaid account. The dial codes still work on that line: #662# turns Scam Block on, #632# turns it off, and #436# turns on Caller ID. There is no Personal Block List in the app to edit on prepaid.

How Fast Can a Wrong Scam Likely Label Change?

A correction is made within 48 hours of a verified request. Report the call from Scam Shield in T-Life, or use T-Mobile’s call reporting form on the web, and pick the category that fits a safe call. Until that label changes, an Allowed numbers entry keeps Scam Block from stopping the person.

Ask for one new call and one new text from the number you just cleared. If the phone rings and the message shows up in the thread, the list that was stopping them is gone.