Here are some popular options: 1. Whitepages:- Provides public records information and contact details for people and businesses, sourced from public data and user-generated content. It allows searches for people or businesses by name, phone number, or address. 2. Yellow Pages:- An online directory that provides information on businesses in various categories, including phone numbers and addresses. 3. AnyWho:- A directory that allows searches for people or businesses by name, phone number, or address. 4. Truecaller:- A caller ID and phone directory app that allows searches for people or businesses by name or phone number. It also has a spam-blocking feature. 5. Intelius:- Provides background checks and people search services, including contact information, criminal records, and public records.