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FEATURES
Trust your communication with Truecaller.
Truecaller is proud to be a leader in caller ID and spam blocking software as well as research around call and SMS harassment.
Identify incoming calls from unknown numbers
Block numbers
Stay safe from fraud SMS and links
No need to switch to other apps
Identify incoming calls from unknown numbers
Block numbers
Stay safe from fraud SMS and links
No need to switch to other apps
Our fight against spam in 2024
56 billion+
Spam & fraud calls identified
173 billion+
Spam & fraud SMSs identified
3.2 trillion+
Unknown calls identified
Loved by our users
450 million
Monthly active users
1 billion+
Downloads
1.5 million+
5-star ratings
Globally Certified for Trust and Security
Truecaller is proudly certified under three internationally recognized ISO standards that affirm our pledge to global best practices in security, reliability, and quality.

For Information Security Management demonstrating rigorous protection of user data.

For Quality Management reflecting our commitment to delivering consistent and high quality services.

For Business Continuity Management ensuring reliable access to our services even in unforeseen circumstances.
Certified by TÜV Rheinland

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DOWNLOAD TODAY
Trust your communication with Truecaller.
Trusted by over 450 million people, Truecaller is proud to be a leader in caller ID and spam blocking software as well as research around call and SMS harassment.
We use cookies on this website
When you visit our website, we use necessary cookies to make our site
work. With your consent, we’ll also use:
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Analytics cookies to
understand how our site is used and improve it. -
Marketing cookies to
measure the effectiveness of our campaigns and tailor content to your
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our partners to show you ads that are more relevant and to limit how
often you see them.
You have the right to withdraw your consent at any time. You can
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information about the cookies we use, see our 🍪
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These are cookies that are required for the operation of our website and cannot be switched off in our systems. Without these cookies, our website cannot be operated so you cannot decline them. They are usually only set and used in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in to secure areas of our website or filling in forms or making use of e-billing services. Without these cookies services you have asked for (e.g. login) cannot be provided.
| Name(s) | Provider | Purpose | Expiry | Type |
|---|---|---|---|---|
| __cfduid | CloudFlare | Functional, to identify trusted web traffic. | 5 years | HTTP |
| __session | Truecaller | Stores necessary preferences to provide site functionality. | 30 days | HTTP |
| __stripe_mid | Stripe | Functional, to provide fraud prevention. | 1 year | HTTP |
| __stripe_sid | Stripe | Functional, to provide fraud prevention. | 30 minutes | HTTP |
| firebase-heartbeat-database#firebase-heartbeat-store | ZipZip | Used in order to detect spam and improve the website's security. | Persistent | IndexedDB |
| firebaseLocalStorageDb#firebaseLocalStorage | ZipZip | Used by Firebase for secure user authentication. | Persistent | IndexedDB |
| flutter.current_session_id | ZipZip | To maintain current user session. | Persistant | LocalStorage |
| messages#box | ZipZip | To maintain the message history. | Persistant | IndexedDB |
| tc:comments | Truecaller | Functional, to remember vote status on comments. | Persistant | LocalStorage |
| tc:cookies | Truecaller | Preferences, to store cookie preferences. | 400 days | HTTP |
| tc:dismissexitintentpopup | Truecaller | Preferences, to store exit intent popup dismissal preferences. | 3 days | HTTP |
| tc:dismisslanguagesuggestion | Truecaller | Preferences, to store locale suggestion preferences. | 1 day | HTTP |
| tc:dismisspublicationcertificatenotice | Truecaller | Preferences, to store publication certificate notice dismissal preferences. | 7d | HTTP |
| tc:ipcountry | Truecaller | Functional, to set default country for search and sign in based on ip. | Session | SessionStorage |
| tc:ipregion | Truecaller | Functional, to suggest language based on country and region. | Session | SessionStorage |
| tc:searchcountry | Truecaller | Functional, to remember last country used in search. | Persistent | LocalStorage |
| tc:searches | Truecaller | Functional, to count and regulate searches. | 7 days | HTTP |
| tc:selectedlanguage | Truecaller | Preferences, to store selected language preferences. | 7d | HTTP |
| tc:user | Truecaller | Preferences, Authentication, to store necessary preferences and session information. | Persistent | LocalStorage |
| tc:webpremiumsubscribed | Truecaller | Preferences, to store web premium promotion dismissal preferences. | 7d | HTTP |
Analytics
We use a behavioral analytics tool that helps us understand your interaction with our website and our app. The goal is to track overall trends in our website traffic, it is not to track individual visitors. All the data is in aggregate only. Data collected includes referral sources, top pages, visit duration, information from the devices (device type, operating system, country and browser) used during the visit. This data measures site performance, enables A/B testing, and informs content, design, functionality and marketing optimization, ultimately enhancing the browsing experience.
| Name(s) | Provider | Purpose | Expiry | Type |
|---|---|---|---|---|
| _clck | Microsoft | Persists the Clarity User ID and preferences, unique to that site is attributed to the same user ID. | 1 year | HTTP |
| _clsk | Microsoft | Connects multiple page views by a user into a single Clarity session recording. | session | HTTP |
| _cltk | Microsoft | This cookie is installed by Microsoft Clarity tool and stores information about how visitors use the website | Session | SessionStorage |
| ANONCHK | Microsoft | Indicates whether MUID is transferred to ANID, a cookie used for advertising. Clarity doesn't use ANID and so this is always set to 0. | 10 minutes | HTTP |
| CLID | Microsoft | Identifies the first-time Clarity saw this user on any site using Clarity. | 1 year | HTTP |
| MR | Microsoft | Indicates whether to refresh MUID. | 6 months | HTTP |
| MUID | Microsoft | Identifies unique web browsers visiting Microsoft sites. These cookies are used for advertising, site analytics, and other operational purposes. | 1 year | HTTP |
| SM | Microsoft | Used in synchronizing the MUID across Microsoft domains. | session | HTTP |
| SRM_B | Microsoft | This cookie is installed by Microsoft Bing. Identifies unique web browsers visiting Microsoft sites. | 1 year | HTTP |
Marketing
Marketing cookies are used to track your browsing activity across different websites to display advertisements that are more relevant to your interests. These cookies help us tailor our marketing campaigns, measure their effectiveness, and connect with you on social media platforms. With your permission, we use marketing cookies to remember your interests, show you more relevant offers and promotions and track our campaign performance.
| Name(s) | Provider | Purpose | Expiry | Type |
|---|---|---|---|---|
| __Secure-ROLLOUT_TOKEN | Registers a unique ID to keep statistics of what videos from YouTube the user has seen. | 180 days | HTTP | |
| _ttp | truecaller.com | To measure and improve the performance of your advertising campaigns and to personalize the user's experience (including ads) on TikTok | 389 days | HTTP |
| A6 (6-digit Advertiser ID) | Sizmek Ad Suite (SAS) | Conversion and ad view measurement; ad rotation and ad delivery sequence. | 90 days | HTTP |
| ActivityInfo2 | Sizmek Ad Suite (SAS) | Conversion, attribution and ROI measurement. | 90 days | HTTP |
| c_*, s_*, | Sizmek Ad Suite (SAS) | Session cookie used to bridge the impression to the clickthrough when the impression was served without any javascript (such as on incompatible devices, etc.). | Session | HTTP |
| C6 (6-digit sID), D4 (6-digit DeliveryGroupID), B6 (6-digit sID, GroupID, AudienceSegmentationID) | Sizmek Ad Suite (SAS) | Ad view measurement; ad rotation/optimization and ad delivery sequence. | 90 days | HTTP |
| ccsession | Sizmek Ad Suite (SAS) | Session cookie facilitating measurement of search events. | Session | HTTP |
| cisi_* | Sizmek Ad Suite (SAS) | Keeps state of the video serving for a given session. | Session | HTTP |
| CONSENT | youtube.com | Used to detect if the visitor has accepted the marketing category in the cookie banner. | 20 years | HTTP |
| csrftoken | instagram.com | CSRF protection token to prevent cross-site request forgery for embedded Instagram videos. | Removed when the user closes the video. | HTTP |
| eboptout | Sizmek Ad Suite (SAS) | Interest-based advertising opt-out. | 5 years | HTTP |
| F1, S2 | Sizmek Ad Suite (SAS) | Measurement of search engine (3rd party) conversions, attribution and ROI. | 90 days | HTTP |
| ig_did | instagram.com | Device identifier for tracking user sessions for embedded Instagram videos. | 9 years | HTTP |
| mid | instagram.com | Unique identifier for user sessions for embedded Instagram videos. | 9 years | HTTP |
| OT_* | Sizmek Ad Suite (SAS) | Session cookie for advertiser-defined measurement of activity on its website. | Session | HTTP |
| OT2 (6-digit ID) | Sizmek Ad Suite (SAS) | Advertiser-defined measurement of activity on advertiser website. | 90 days | HTTP |
| r1, r# | Sizmek Ad Suite (SAS) | Session cookie that protects the server and the client from redirect loops. | Session | HTTP |
| searchsession_* | Sizmek Ad Suite (SAS) | Session cookie that protects the server from redirect loops, used in conjunction with measuring search events. | Session | HTTP |
| TargetingInfo3, G4 (6-digit sID) | Sizmek Ad Suite (SAS) | Audience engaging/re-engaging based on visits to advertiser’s website. | 90 days | HTTP |
| U2 | Sizmek Ad Suite (SAS) | Pseudonymous advertising ID for browser. | 90 days | HTTP |
| Um2 | Sizmek Ad Suite (SAS) | Cookie syncing. | 90 days | HTTP |
| VISITOR_INFO1_LIVE | youtube.com | Tries to estimate the users' bandwidth on pages with integrated YouTube videos. | 179 days | HTTP |
| VISITOR_PRIVACY_METADATA | Youtube visitor privacy metadata cookie | 180 days | HTTP | |
| YSC | youtube.com | Registers a unique ID to keep statistics of what videos from YouTube the user has seen. | Session | HTTP |
| yt-remote-cast-available, yt-remote-cast-installed, yt-remote-connected-devices, yt-remote-device-id | youtube.com | Stores the user's video player preferences using embedded YouTube video. | Persistant | HTML |
| yt-remote-fast-check-period, yt-remote-session-app, yt-remote-session-name | youtube.com | Stores the user's video player preferences using embedded YouTube video | Session | HTML |
Advertising
We use Google Publisher Tag to display ads on our website in
certain areas, such as the phone number search results page.
Through this service, and in cooperation with our advertising
partners, we may use cookies to show ads that are more
relevant to you based on your browsing activity. These cookies
also help us limit how often you see the same advertisement
and measure the performance of our ads. Your advertising
settings (where available in your region) can be managed
through Google Publisher Tag’s privacy and messaging tools.
You can review or change your preferences by clicking “Ad
settings”. Advertising cookies are only activated if you give
your consent. Without your consent, you may still see ads, but
they will be less relevant and not personalized.
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