Products - T-Mobile Signal Booster

Can I use a T-Mobile- compatible signal booster device?
Yes.  A signal booster is a device that helps to extend the cellular coverage footprint in areas of weak or poor coverage.  However, in order to use a signal booster, you will need to register the device at https://www.signalboosterregistration.com/.
How do I know I am on T-Mobile's Network?
The phone's SIM card will begin with the numbers 890 1260. If there is no SIM card or it does not begin with those numbers, then your device is not on a GSM network and your T-Mobile- compatible signal booster will not operate.
Why do I have to register?
In order to ensure signal boosters are not interfering with cellular coverage, the FCC has mandated signal boosters be registered with carriers. All carriers allowing the use of signal boosters on their network must provide consumers the ability to register the use address of the booster. The carrier can then use this information when troubleshooting network issues. In the event a booster is causing problems on the network, registration helps carriers identify and locate the booster. Registration helps to protect consumers and carriers by streamlining network troubleshooting ensuring a positive signal experience. 
What data is collected for registration and how will it be used?
The information collected during registration is specific to locating the booster use address and contact information on the user in the event the carrier needs to contact the user about the booster. This information will only be used to locate boosters in the event network issues are believed to be linked to the booster operation. 
How do I register?
If you purchased your own booster or have moved from the original address where it was used, click https://www.signalboosterregistration.com to access the registration tool. Please be advised that this registration page is only for T-Mobile compatible signal booster.

More information on the FCC requirements can be found here: http://wireless.fcc.gov/signal-boosters/index.html.

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