New tools to help block robocalls are now available for Verizon customers. On Thursday, the wireless carrier said it started rolling out a free version of its Call Filter service to all customers.

Verizon in January said it would be expanding its spam- and robocall-prevention features to more customers. The free version of Call Filter lets you get spam alerts, report unsolicited numbers and block robocalls. Verizon said all postpaid customers with a compatible device can enroll, though some features will vary based on the type of phone you have.

Verizon also still offers a paid version of Call Filter, which costs $2.99 a month per line. The paid service offers additional tools like the ability to identify unknown callers by name and a spam number lookup feature.

Verizon also said Thursday that its began deployment of the STIR/SHAKEN caller ID technology that'll verify "the phone number displayed on Caller ID is the phone number that actually placed the call."