Who - Caller ID, Spam Block

Detect & Block Scam, Telemarketer, Fraud & Robocalls - Find Out Who Is Calling

WHO is the world's premier Caller ID and spam-blocking application, designed to manage all your calls and messages efficiently. By filtering out telemarketers, robocalls, and other unwanted disturbances, WHO ensures your communication remains safe and effective. With a community-driven spam list updated by millions of users globally, WHO stands as the ultimate solution to safeguard your daily interactions.

True Caller Identification - Caller ID

• Identify Unknown Callers: WHO offers the world's best Caller ID feature, which identifies any caller, even those not listed in your contacts.
• Real-Time Alerts: Instant alerts notify you of unwanted calls, providing real-time protection against robocalls, telemarketers, and scam calls.
• Contact Management: Seamlessly add names and addresses from WHO to your phone contacts, ensuring they remain accurate and up-to-date.

Best Spam Detection & Block - RoboKiller

• Spam Detection: WHO detects robocalls, telemarketers, fraud, and scam calls with precision.
• Community Reporting: Real-time spam call reporting by the community enhances the app's effectiveness.
• Spam Call Blocking: Get notified before answering if a number is flagged as a spammer, ensuring you avoid unwanted interruptions.

People Search & Background Checks

• Find People Easily: WHO enables you to look up phone numbers, addresses, and conduct background checks on individuals, including college friends, distant relatives, and coworkers.
• Confidential Searches: All background checks are confidential and sourced from multiple databases, offering quick and reliable results.

Reverse Phone Lookup, Address Search & Email Lookup

• Reverse Phone Lookup: Identify unknown callers instantly using one-click search from your call log or by looking up a number directly.
• Address and Public Records: Discover who owns a phone number and access their background report, including address and other public records.
• Email Search: Find out who owns an email address and identify spam and phishing emails.

Yellow Pages

• Business Information: Locate businesses near you and obtain their phone numbers, directions, and business hours.

Additional Features

• Identify Unknown Callers: Use reverse phone lookup to identify unknown callers and suspicious texts.
• Phone Number Lookup: Look up phone numbers and addresses for acquaintances, extended family, and others.
• Family Safety: Ensure your family's safety by performing background checks on neighbors and nearby individuals.

WHO Premium - Upgrade Your Experience

• Ad-Free Experience: Enjoy a seamless user experience without advertisements.
• Advanced Protection: Get advanced protection against spam, scam, telemarketer, and fraud calls.
• Automatic Updates: Benefit from automatic updates to the spam database for continuous protection.
• Full Name Identification: View full names of callers not listed in your contacts.

With over 10 million unique monthly visitors, WHO provides detailed and up-to-date data about people, helping users reconnect, update lost contact information, and monitor their online presence. WHO's proprietary technology organizes 12 billion records, making it a powerful tool for both personal and professional use.