Number Masking for Beginners: Zero to Hero

Privacy numbers for ride-hailing, delivery, dating, and marketplace apps — general industry knowledge with real platforms as examples, since dynamic number masking isn't a 6X product.

Prerequisites

None required — helpful (not required) to have completed DID Basics first.

What You'll Learn

Understand what number masking is and why apps use it for privacy
Know the difference between dynamic masking and a static DID/inbound number
See real-world use cases across ride-hailing, delivery, dating, and marketplaces
Understand consent and anti-spoofing compliance around masked numbers
Find businesses that genuinely need this kind of privacy feature

Powered by 6X – your privacy-numbers knowledge guide! Number masking connects two people through a temporary shared number so neither sees the other's real phone number — the pattern ride-hailing, delivery, dating, and marketplace apps use.

6X doesn't offer dynamic number masking as a self-serve product today — this course teaches the general industry knowledge, referencing real platforms (Twilio Proxy, Bandwidth, SignalWire) as examples. If you're specifically interested in this through 6X, chat with us — 6X's real self-serve product is static Inbound Numbers (one number per business), which is a different mechanism.

Course Outline

Masking Basics – Two Strangers, One Number

Not the Same as a Static DID

Simulate a Masked Call

Masking Pricing – A Subscription-Style Feature

Compliance – Privacy Isn't the Same as Spoofing

Finding Masking-Interested Businesses

Number Masking Legend Status Unlocked!

Quiz

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