Twitter Ads - Twitter offers targeted ad placement on their ad platform.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Snapchat Ads - Snapchat's official self-serve ads manager
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
Instagram Ads - With Instagram ads, businesses can drive awareness and increase its customer base through visuals. Learn how to advertise on Instagram and our ad formats.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.