What is the T-Mobile call forwarding code?

Dial **21* followed by the 10-digit destination and a #, for example **21*8005551234#, then press call. Dial ##21# to cancel, or ##002# to clear every forwarding rule on the line at once.

How do I find my own number on T-Mobile?

Dial #686#, which spells #NUM#, and press call. T-Mobile returns the number of the line you are dialing from. This is the quickest way to identify a phone you did not set up yourself.

What is #225# on T-Mobile?

#225# spells #BAL# and returns your account balance. The related shortcuts are #646# (#MIN#) for minutes used, #932# (#WEB#) for data usage, and #793# to reset your voicemail password.

Do T-Mobile and AT&T use the same codes?

For call forwarding, yes — both run GSM, so **21*, **61*, ##21# and ##002# behave identically on each. The account shortcuts differ, and Verizon uses a completely different family of star codes (*72, *71, *73).

Why does my T-Mobile code do nothing?

Usually a missing trailing # so the phone dialed it as a normal number, or pressing enter instead of the call button — USSD strings only register when sent with call. A working code produces a T-Mobile confirmation message within a few seconds.

← Help center

T-Mobile codes: USSD strings, account shortcuts, and status checks

T-Mobile is a GSM network, so its codes are USSD strings rather than star codes. Here is the full set — forwarding, status checks, account shortcuts, and the ones that spell words on the keypad.

T-Mobile runs on GSM, which means its dial codes follow the international USSD pattern: a double star or double hash to start, the destination in the middle, and a hash to finish. Press the call button rather than enter, and the network sends a text confirmation back within a few seconds. The account shortcuts are the friendlier half of the list — they spell words on the keypad, so #BAL# and #NUM# are easier to remember than the digits behind them.

T-Mobile call forwarding codes

Code	What it does
`*21<number>#`	Forward every call
`*61<number>#`	Forward when you do not answer
`*67<number>#`	Forward when your line is busy
`*62<number>#`	Forward when the phone is off or unreachable
`##21#`	Cancel forward-all
`##61#`	Cancel no-answer forwarding
`##002#`	Cancel every kind of forwarding at once

These are identical to AT&T's, because both run GSM. Use a plain 10-digit destination and keep the trailing hash — dropping it is the usual reason nothing happens. Full walkthrough on how to forward calls on T-Mobile.

##002# is the one worth remembering. If you have inherited a line and have no idea what is set on it, that single code clears every forwarding rule at once.

T-Mobile account shortcuts

Code	Spells	What it returns
`#225#`	#BAL#	Account balance
`#646#`	#MIN#	Minutes used this cycle
`#932#`	#WEB#	Data usage
`#686#`	#NUM#	Your own phone number
`#793#`	#SVC#	Reset your voicemail password
`611`	—	T-Mobile customer service

#686# is the one people search for most — it tells you the number of the line you are holding, which is genuinely hard to find otherwise on a phone you did not set up yourself.

Check what is active on the line

Code	What it reports
`*#21#`	Whether forward-all is on and the destination
`*#61#`	No-answer forwarding destination
`*#62#`	Unreachable forwarding destination
`*#67#`	Busy forwarding destination
`*#31#`	Whether your caller ID is hidden
`*#06#`	Your IMEI

These interrogate rather than change anything, so they are safe to run on any line. A *#21# result pointing at a T-Mobile voicemail number is normal and expected — see what *#21# means for why that is not a sign of anything wrong.

Caller ID codes on T-Mobile

Code	What it does
`#31#<number>`	Hide your number for one call, GSM form
`*67<number>`	Hide your number for one call, star-code form
`*82<number>`	Show your number for one call
`*#31#`	Check whether your ID is currently hidden

Both #31# and *67 work on T-Mobile handsets. Neither hides your number from toll-free lines or emergency services, and many businesses reject calls with no caller ID outright. See how to block your number.

Try the carrier code generator

Pick your carrier and condition — get the exact code to dial, with a copy button.

Country

Carrier

When should calls forward?

Forward to this number (your RingOwl number, your other line, etc.)

Code preview

Enter the destination number above and the dial code appears here.

FAQ

What is the T-Mobile call forwarding code?: Dial **21* followed by the 10-digit destination and a #, for example **21*8005551234#, then press call. Dial ##21# to cancel, or ##002# to clear every forwarding rule on the line at once.
How do I find my own number on T-Mobile?: Dial #686#, which spells #NUM#, and press call. T-Mobile returns the number of the line you are dialing from. This is the quickest way to identify a phone you did not set up yourself.
What is #225# on T-Mobile?: #225# spells #BAL# and returns your account balance. The related shortcuts are #646# (#MIN#) for minutes used, #932# (#WEB#) for data usage, and #793# to reset your voicemail password.
Do T-Mobile and AT&T use the same codes?: For call forwarding, yes — both run GSM, so **21*, **61*, ##21# and ##002# behave identically on each. The account shortcuts differ, and Verizon uses a completely different family of star codes (*72, *71, *73).
Why does my T-Mobile code do nothing?: Usually a missing trailing # so the phone dialed it as a normal number, or pressing enter instead of the call button — USSD strings only register when sent with call. A working code produces a T-Mobile confirmation message within a few seconds.

Forward your line to an AI that books

RingOwl is a 24/7 AI answering service for small businesses. Forward your line with the codes above and the AI picks up every call, books appointments straight into your calendar, and texts you a summary. Free 7-day trial, no credit card.

Start your free trial →