UKPhoneBook

UK people, business, and address directory built on the electoral roll, directory enquiries, and Companies House data. Detailed records need credits.

Paid US background-check service covering contact info, criminal records, assets, vehicles, and social profiles.

Canadian white- and yellow-pages directory with person, business, and reverse phone lookup.

German telephone directory with name, address, and reverse phone search (Rückwärtssuche).

Free genealogy database of billions of historical records (census, birth, marriage, death, immigration), useful for building family trees and finding relatives.

Free US people finder with reverse phone and address search, address history, associated names, and relatives.