We need to send some important message everyday to several contacts on WhatsApp. There are times when we need to send a message to a number we don’t wish to add to our contact list or unsaved numbers.

How to Add Someone's Phone Number to Your Contacts on Gmail. When you send or receive mail to or from someone in Gmail, a record of that person's name and email address is made in Gmail's contacts ...

You most likely have duplicate contacts with multiple phone numbers in your contacts list that are very unorganized, but iOS 7 makes it easy to remedy this.

‌iOS 18‌ also introduces new options for adding numbers to contacts directly from the Keypad. After entering a new number, tap the new button in the top-left corner of the Keypad screen.