--- title: Is STIR/SHAKEN Preventing Scam Calls? description: STIR/SHAKEN was implemented to reduce spam and scam calls. Read on for more information on the effectiveness of this legislation. image: https://blog.hiya.com/hubfs/shutterstock_2129054882_smaller.jpg --- [![Hiya logo](https://blog.hiya.com/hubfs/hiya-new-purple.svg)](https://www.hiya.com/) Solutions Solutions [For Mobile Operators Protect your network](https://www.hiya.com/solutions/operators) [For Businesses Brand your calls](https://www.hiya.com/solutions/businesses) [For People Get the mobile app](https://www.hiya.com/products/apps/hiya-spam-blocker) ###### Webinar Branded Calling 101 Weekly Webinar Make your company's calls more recognizable. Learn how Hiya can drive value for your business. 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[Hiya Team](https://blog.hiya.com/author/hiya-team) May. 20, 2022 [![](https://blog.hiya.com/hubfs/icon-fb.svg)](https://www.facebook.com/sharer/sharer.php?u=https://blog.hiya.com/stir-shaken-preventing-scam-calls) [![](https://blog.hiya.com/hubfs/icon-x.svg)](https://twitter.com/intent/tweet?url=https://blog.hiya.com/stir-shaken-preventing-scam-calls&text=Is+STIR%2FSHAKEN+Preventing+Scam+Calls%3F) [![](https://blog.hiya.com/hubfs/icon-linkedin.svg)](https://www.linkedin.com/shareArticle?mini=true&url=https://blog.hiya.com/stir-shaken-preventing-scam-calls) ## At a glance ![](https://blog.hiya.com/hubfs/shutterstock_2129054882_smaller.jpg) We are quickly approaching the final implementation deadline of STIR/SHAKEN legislation, which was enacted to reduce spam and scam calls. Most of the large phone carriers have already implemented STIR/SHAKEN technology into their networks, as their deadline of June 30, 2021 has already passed. Small carriers have until June 30, 2022 to meet the deadline.  Large carriers — which handle most of the call traffic — have been complying with STIR/SHAKEN requirements for nearly a year, so there is enough data to evaluate how successful STIR/SHAKEN has been so far.   Hiya has just released [a report](https://work.hiya.com/stir-shaken-report?itm_medium=website&itm_source=resources-page&itm_campaign=WP-2205-Stir-Shaken-Report&hsLang=en) that takes a look at the successes and shortcomings of STIR/SHAKEN, and the unexpected consequences of the regulations. One of key findings in this report is that while STIR/SHAKEN seems to be helpful in identifying spam calls originating from mobile devices, it’s not doing as well with Voice over Internet Protocol (VoIP) calls.  In fact, only 7% of VoIP calls are receiving the highest level of attestation, Level A, which  means the carrier has verified the caller’s identity and authorized usage of the phone number. Only 4% of VoIP calls are receiving the middle level of attestation, Level B, in which the carrier can identify the location of the caller, but can’t verify if the user has the authorization to use the phone number. That leaves the majority of VoIP calls, 89%, with the lowest attestation level, Level C, which means the call can’t be authenticated. The carrier can only verify where the call was received, but can’t pinpoint the call’s origination location.  To discover the percentages for calls originating from mobile phones, and many other findings, [download](https://work.hiya.com/stir-shaken-report?itm_medium=website&itm_source=resources-page&itm_campaign=WP-2205-Stir-Shaken-Report&hsLang=en) the report Is STIR/SHAKEN Preventing Scam Calls?     [![banner-hiya-reg](https://blog.hiya.com/hubfs/banner-hiya-reg.jpg)](https://www.hiya.com/products/connect/number-registration) ### Latest Articles ⚡️ - Solving the unknown number problem in Spain with Telefónica Camilla Dickson Oct. 20, 2026 - Overcoming the nuisance call problem in France with Bouygues Telecom Camilla Dickson Oct. 15, 2026 - 4 Benefits of Changing Your Outbound Caller ID Alia Logan Oct. 2, 2026 ## Related articles ![](https://blog.hiya.com/hubfs/Operators-Bouygues%20social.webp) ## [Overcoming the nuisance call problem in France with Bouygues Telecom](https://blog.hiya.com/overcoming-the-nuisance-call-problem-in-france-with-bouygues-telecom?hsLang=en) Camilla Dickson Oct. 15, 2026 ![](https://blog.hiya.com/hubfs/1-Change-Caller-ID_A.jpg) ## [4 Benefits of Changing Your Outbound Caller ID](https://blog.hiya.com/benefits-change-caller-id?hsLang=en) Alia Logan Oct. 2, 2026 ![](https://blog.hiya.com/hubfs/SotC2026-France%20Focus.webp) ## [Nearly half of French consumers have lost money to a phone scam](https://blog.hiya.com/nearly-half-of-french-consumers-have-lost-money-to-a-phone-scam?hsLang=en) Rob Unsworth Sep. 29, 2026 [![](https://blog.hiya.com/hubfs/hiya-new-purple.svg)](https://www.hiya.com/) [![](https://blog.hiya.com/hubfs/linkedin-1.svg)](https://www.linkedin.com/company/hiyainc) [![](https://blog.hiya.com/hubfs/facebook-1.svg)](https://www.facebook.com/hiyainc/) ###### Products - Connect - [Number Registration](https://www.hiya.com/products/connect/number-registration) - [Branded Call](https://www.hiya.com/products/connect/branded-call) - [View Plans](https://www.hiya.com/products/connect/pricing) - Protect - [Spam Analytics](https://www.hiya.com/products/protect/spam-analytics) - [AI Voice Detection](https://www.hiya.com/products/protect/ai-voice-detection) - Apps - [Hiya Spam Blocker](https://www.hiya.com/products/apps/hiya-spam-blocker) - [Hiya AI Phone](https://www.hiya.com/products/apps/hiya-ai-phone) ###### Solutions - Company size - [Enterprise](https://www.hiya.com/solutions/enterprise) - [Call Centers](https://www.hiya.com/solutions/call-center) - [Small and Medium](https://www.hiya.com/solutions/businesses) - Service providers - [Operators](https://www.hiya.com/solutions/operators) - [OEMs and technology](https://www.hiya.com/solutions/technology-partners) ###### Considering Hiya? - [Why Hiya](https://www.hiya.com/why-hiya) - [How it Works](https://www.hiya.com/how-it-works) - [Customer Stories](https://www.hiya.com/case-studies) - [Voice Intelligence Platform](https://www.hiya.com/why-hiya/voice-intelligence-platform) - [Trust Center](https://www.hiya.com/why-hiya/trust-center) - [Modern Slavery](https://www.hiya.com/company/modern-slavery) - [About Hiya](https://www.hiya.com/company/about) - [Careers: We're hiring!](https://www.hiya.com/company/careers) - [Contact us](https://www.hiya.com/contact-us) ###### Resources - [Resource Center](https://www.hiya.com/resources) - [Partner Program](https://partners.hiya.com/) - [Get Support](https://hiya.com/support) - [Developer Docs](https://developer.hiya.com/) - [Hiya Blog](https://hiya.com/blog) - [Events](https://www.hiya.com/events) - [Press Kit](https://www.hiya.com/newsroom#press-kit) ![ANAB](https://blog.hiya.com/hubfs/logo-anab.svg) ![ISO 27001](https://blog.hiya.com/hubfs/logo-iso27017.png) ![AICPA](https://blog.hiya.com/hubfs/logo-aicpa.svg) ![IAF](https://blog.hiya.com/hubfs/logo-iaf.svg) [Privacy Policy](https://www.hiya.com/legal/privacy) [Terms of Service](https://www.hiya.com/legal/terms-of-service) [App Data Privacy Policy](https://www.hiya.com/legal/app-data-protection-and-privacy-policy) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Hiya Team", "url" : "https://blog.hiya.com/author/hiya-team" }, "dateModified" : "2023-07-13T20:29:49.759Z", "datePublished" : "2022-05-20T18:45:00.000Z", "headline" : "Is STIR/SHAKEN Preventing Scam Calls?", "image" : [ "https://blog.hiya.com/hubfs/shutterstock_2129054882_smaller.jpg" ], "mainEntityOfPage" : { "@id" : "https://blog.hiya.com/stir-shaken-preventing-scam-calls", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://blog.hiya.com/hubfs/hiya-logo-3.svg" }, "name" : "Hiya Inc." } } ```