Carrier-Provided Call Blocking Services:

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Major mobile carriers (e.g., AT&T, Verizon, T-Mobile in the US) offer their own free or paid services and apps to identify, filter, or block suspected spam and scam calls. These often use advanced analytics to detect fraudulent patterns.
Examples include AT&T ActiveArmor, T-Mobile Scam Shield, and Verizon Call Filter.
Third-Party Call-Blocking Apps:

Several apps specialize in identifying and blocking unwanted calls. These slovenia phone number list often have large databases of known spam numbers and use community reporting to update their lists.
Popular options include Truecaller, Hiya, Nomorobo, and Call Control. Some offer free basic features, while premium versions provide more advanced functionality.
Caution: Be mindful of the privacy policies of these apps, as they may require access to your call logs or contacts to function effectively.