Let’s look at how you can block those spam messages from dropping on your phone number. Responding to a spam test confirms that the number is indeed a genuine mobile number, and spammers can use this information and send more spam texts in the future. If you witness a suspicious message, avoid replying to it. How to Stop/Filter Spam Messages on Android If yours doesn’t have Google messages installed, you’ll need to download it first. Note: In this tutorial, we use Google messages that come pre-installed on phones running on stock Android. No, we’re not selling a magical app that will block spam from coming - you can stop spam from the messaging app on your phone itself. Deleting unwanted or unsolicited texts to clear the inbox is annoying, but there’re ways to block spam messages for good. Spam texts are inevitable, even if you have a flagship smartphone or a mid-ranger. These annoying texts from spammers/unknown numbers can fill your inbox with junk messages containing dubious links.