Quality Second Phone Number

The second number built on real wireless

A real wireless number, not another VoIP line, for texts and calls that actually get through.

Real wireless
Custom area code
One per person
~99%SMS delivery that real wireless numbers commonly approachWireless
~40%message acceptance at some VoIP-based servicesVoIP
1Qnum number per person, so every number stays accountableSafeguard
0VoIP numbers. Every Qnum number is a real wireless numberNetwork
Video coming soon A quick tour of the Qnum app is on its way.
Watch

See the app in action

A quick screen recording of the real Qnum app, from choosing your area code to your first delivered text.

Get your Qnum
The problem with VoIP

Most second numbers are VoIP numbers. They're cheap and easy to hand out, and that's exactly the problem. VoIP numbers are widely linked to spam and abusive traffic, so carriers filter them heavily. Your messages pay for it.

Texts get filtered before they arrive.
Conversations feel unreliable.
Your number inherits a spam reputation it didn't earn.
The fix

A second number should be as dependable as your first.

That's why every Qnum number is a real wireless number, running on the same kind of carrier network as the phone in your pocket. Qnum stands for Quality Number, and the quality comes from the infrastructure.

Wireless vs. VoIP

What changes when your second number is wireless

Wireless numbers are treated as significantly more trusted than VoIP numbers throughout the telecom ecosystem. Here's what that looks like for everyday messages.

Typical VoIP second number ~40%

Message acceptance at some VoIP-based services can drop this low, because their traffic is filtered so heavily.

Qnum wireless number ~99%

Real wireless numbers commonly see SMS delivery rates approaching this level on true mobile carrier networks.

Inside the app

One number. Three kinds of quality.

For people who want a second line that works as well as their first, and stays trusted because of how it's protected.

A real wireless number

Your Qnum number runs on real wireless carrier infrastructure, not a virtual VoIP line. That means higher reliability, better message delivery, and better compatibility with modern communication systems.

Compare with VoIP

Outcomes

Texts that reach people, calls that connect, a number that carries trust.

What you get

A real wireless number on a true mobile carrier network.

Hey there! How's it going?
8:25 AM · Delivered
Line typeMobile
NetworkUS wireless carrier
VoIP numberNo

A private second identity

Share your Qnum number with new connections, clubs, roommates, and everyone in between. Your primary number stays with the people who already have it.

See how it works

Outcomes

Everyday personal conversations kept on a line set aside for them.

What you get

Texting and calling from one app, beside your primary number.

Primary numberPrivate
+1 (415) ••• ••••
Family, work, bank, the people who already have it
Your Qnum
+1 (212) 555-0187
Share it freely with
Run clubRoommatesMarketplaceNew friends

Responsible by design

Qnum protects your primary mobile identity while using layered anti-abuse screening and responsible usage controls. It's designed for legitimate consumer communication, not anonymous or disposable use.

Read the details

Safeguards

One number per user, conservative messaging limits, no number farming or rapid cycling.

Built for

Strictly consumer-to-consumer conversations. No bulk, marketing, or customer messaging.

Account safeguardsGood standing
One number per personNo number farming or rapid cycling
Layered anti-abuse screeningKeeps spam traffic off the network
Conservative messaging limitsApplied to every account
Personal conversations onlyNo bulk, marketing, or customer texts
App tour

A look inside Qnum

Swipe through the screens you'll use every day.

Quality Second Phone Number

  • Real wireless numbers
  • Not VoIP numbers
  • ~99% versus ~40% deliverability
  • One-tap setup

Real wireless number, ~99% delivery

Compared with as low as ~40% at some VoIP services

Keep your primary number private

Share your Qnum. Keep your real number for the people who already have it.

One-tap setup, custom area code

Pick a 3-digit US area code, or let Qnum choose the best one.

One-tap setup

Your second line, set up in minutes

Setup includes a custom area code, so your Qnum can feel local wherever you want it to. Try the area code screen on the right.

  1. 01

    Download Qnum

    Install the app and create your account with privacy-preserving onboarding.

  2. 02

    Choose your area code

    Enter a 3-digit US area code, or leave it blank and Qnum assigns the best available one.

  3. 03

    Text and call from one app

    Keep personal conversations on your second line, alongside your primary number.

9:41

Choose your area code

Pick your area code before we assign your Qnum number.

Preview your number

Enter a 3-digit US area code, or leave it blank and we will assign the best available one.

Your Qnum will look like+1 (212) •••-••••
Optional. Leave empty for automatic selection.

Fun fact: Q·N·U·M on a keypad dials 7686

FAQ

Good to know before you start

How is Qnum different from other second-number apps?

Most second-number apps use VoIP numbers. Qnum uses real wireless numbers operating on true mobile carrier networks. Wireless numbers are treated as more trusted than VoIP numbers, which supports a higher quality, more reliable communication experience.

Can I choose my area code?

Yes. During setup you can enter any 3-digit US area code. Leave it blank and Qnum assigns the best available number for you.

Does Qnum replace my primary number?

No. Qnum gives you a private second mobile identity for everyday personal communication, so you can keep your primary number for the people who already have it.

How many Qnum numbers can I have?

One. Every person gets a single Qnum number. One number per user is one of the safeguards that keeps Qnum numbers trusted.

Is Qnum anonymous?

No. Qnum keeps your primary number private, but it is not an anonymous or disposable number service. Each number belongs to one accountable user and is protected by layered anti-abuse screening.

Can I use Qnum to message customers or send bulk texts?

No. Qnum is strictly for consumer-to-consumer communication. It isn't built for customer messaging, marketing, sales outreach, or high-volume texting, and conservative messaging limits apply to every account.

Get the quality second number

A real wireless number for your everyday conversations, with privacy and anti-abuse protections built in.

  • Real wireless numbers
  • Not VoIP numbers
  • ~99% vs. ~40% delivery
  • One-tap setup, custom area code