Email lookup tools like VoilaNorbert and Hunter.io can find addresses from names and domains. Google advanced search with "+email" operator can locate emails on webpages. Company websites often list email addresses in About Us and Contact pages. Social media profiles often contain contact details including email addresses
Open Settings and tap Apps. Select Phone and find number under My Number. iOS 18 users can skip this step
WhatsApp requires contacts to be added before messaging. Tap speech bubble icon on Android or pencil box on iOS. Enter contact details including name, phone number, and country code. WhatsApp automatically saves contacts to Contacts app
International phone numbers follow E.164 format defined by ITU. Format consists of country code, area code, and local number. Numbers typically range from 8 to 15 digits
US phone numbers consist of area code, exchange code, and subscriber number. Area code identifies geographic region, typically 3 digits. Exchange code narrows down location within area code region. Subscriber number is 4-digit unique identifier for specific line
Review password manager to see accounts linked to phone number. Check app permissions in settings to find apps with phone access. Search social media platforms for accounts linked through sign-ins. Search inbox for account verification emails. Use search engines to find accounts by phone number or email