Yes. Many mobile carriers offer network-level call filtering, which blocks or flags suspected spam calls before they reach your phone. The exact features depend on your carrier and country.
Some common examples in the U.S. include:
- AT&T ActiveArmor – Includes automatic fraud call blocking and spam risk labeling, with additional features on paid tiers.
- Verizon Call Filter – Identifies spam callers and can automatically block high-risk spam calls.
- T-Mobile Scam Shield – Provides scam identification and scam blocking at the network level, plus caller ID features.
- Google Fi Spam Blocking – Offers spam detection and blocking for Fi users.
In addition to carrier services, many networks now support STIR/SHAKEN, which helps verify whether a caller ID has been spoofed. This doesn't stop all spam calls, but it makes caller ID spoofing more difficult and improves spam detection.
If your carrier doesn't provide robust filtering, third-party apps such as Hiya, Truecaller, and RoboKiller can supplement your carrier's protections, although they generally work on the device rather than entirely at the network level.
If you tell me which mobile carrier you're using (and your country), I can point you to the specific network-level spam blocking options available on your plan, including whether they're free or require an add-on.
