We can shoot a Tesla into orbit, but we still can’t stop telemarketing scam artists from calling us. The Federal Trade Commission fields an average of 375,000 complaint calls every month about these nuisance solicitations, which often disguise their identities using spoof numbers and are hoping to trick you into revealing your financial information. They’re annoying, illicit, and insulting, but they can be reduced.

According to Verge writer Chris Welch, robocalls sent to iPhone or Android smartphones can be thwarted a number of different ways. Many major cell carriers offer apps that block numbers suspected of being fraudulent. AT&T calls theirs Call Protect, for example, and alerts you when an incoming call seems dubious. You can then choose to ignore it or put it on a permanent block list. T-Mobile has Scam Block, which keeps tabs on known scam numbers and prevents them from getting through.

These services range from being free to leaving a minor ($2.99) surcharge on your monthly bill. For more aggressive blocking, third-party apps like Nomorobo and RoboKiller maintain huge databases of scam numbers and use them to compare incoming calls—once a robocall is detected, it’s cut off.

If you’re still not satisfied with one of these options, you may want to consider a hardware upgrade: Recent models from Samsung like the Galaxy S and Note use a Smart Call feature to curtail unwanted calls.

People who get calls on conventional landline phones shouldn’t give up hope, either. Broadband services like Spectrum (formerly Time Warner Cable) have a version of Nomorobo that will block calls from confirmed scam numbers.

[h/t the Verge]