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Works alongside the carrier you have
Commuter holding a phone on a crowded train platform
No contracts. No switching carriers.

SecondBars: a second network for your phone

A second network on the phone you already have. Pick how much data you want and where it should work.

Select Data: Unlimited

For heavy use. Fair use up to 50 GB a month.

Select Location

Works across the US.

SecondBars · Unlimited · United States$130 / month
Get SecondBars

Monthly price. Taxes and fees are shown at checkout.

  • Keep your number
  • Keep your carrier
  • Instant eSIM
  • Global option
  • Cancel anytime
  • No roaming passes
Why SecondBars?

Every carrier has places it does not reach. SecondBars puts a second line on the same phone, so there is somewhere else for your data to go when your main line has nothing.

Your carrier, your plan and your number stay exactly as they are.

What's in this package
  • Unlimited data, with fair use up to 50 GB a month
  • Works across the United States
  • One eSIM, installed by QR code
  • Renews monthly until you cancel
Directions
  1. Check out, then scan the QR code we show you. It takes a few minutes on Wi-Fi.
  2. Leave your carrier as the default line for calls and texts.
  3. Turn on automatic data switching once, so your phone can move data to SecondBars by itself.

Step-by-step guides for iPhone and Android.

Phone compatibility

You need an unlocked phone that supports eSIM and can run two lines at once. That covers most iPhones and Android phones from the last five years.

Check your phone

Coverage and fair use

United States packages work across the US. Global packages also work abroad, in supported countries.

Unlimited is for normal personal use and is priced for up to 50 GB a month. See the fair use policy.

Billing and cancelling

Billed monthly, plus taxes and fees. Your data allowance starts again each month. There is no contract and you can cancel anytime.

SecondBars includes

  • A second cellular network

    Your phone gets another network alongside your existing carrier.

  • Keep your existing number

    No porting. No changing your primary phone plan.

  • Keep Verizon, AT&T, T-Mobile, etc.

    SecondBars sits beside your current carrier instead of replacing it.

  • Instant eSIM activation

    No physical SIM card. No waiting for something in the mail.

  • Backup coverage for dead zones

    When your primary carrier has weak or no service, you have another network available.

  • 5G where available

    Fast cellular data on the SecondBars network.

  • International dataWith Global

    Use the same SecondBars eSIM when traveling in supported countries.

  • No $12/day roaming passWith Global

    Use SecondBars abroad instead of activating your carrier's daily roaming option.

  • One eSIM that stays on your phone

    You don't need to shop for and install a new travel eSIM every trip.

  • Works on compatible unlocked phones

    Designed for modern dual-SIM/eSIM-capable iPhones and Android devices.

  • Unlimited backup data

    For maps, messaging, email, browsing, rideshare, and staying connected when your main network fails.

  • Cancel anytime

    No long-term carrier contract.

Made for

  • Dead Zones

    Your carrier drops. SecondBars doesn't have to.

  • Road Trips

    Another network when coverage changes mile by mile.

  • Travel

    Land, connect, go.

  • Crowded Places

    A second option when one network is overloaded.

  • Off the Beaten Path

    More chances of finding a usable network.

  • Work Anywhere

    Backup data when being offline isn't an option.

No switching required

All the upside of another carrier. None of the pain of switching carriers.

  • No new phone number
  • No carrier switch
  • No physical SIM
  • No store visit
  • No roaming day passes
  • No new eSIM every trip
  • No long-term contract
9:415G
Activate New eSIM

A SecondBars eSIM is ready to be added to this iPhone. Your current line and number stay the same.

CarrierSecondBars
PlanBackup data
Continue
01

Add the eSIM

Check out, scan the QR code, tap Continue. It takes a few minutes and nothing about your current line changes.

9:415G
‹ Settings
Cellular
SIMs
P
Your carrier
Primary · Your number
On ›
S
SecondBars
Backup · 5G
On ›
Default Voice LineYour carrier ›
Cellular DataYour carrier ›
02

Two lines, one phone

SecondBars sits next to your carrier. Calls and texts keep using your number.

9:415G
‹ Cellular
Cellular Data
P
Your carrier
Primary
✓
S
SecondBars
Backup · 5G
Allow Cellular Data Switching

Your phone will use cellular data from both lines depending on coverage and availability.

03

Auto-switch in dead zones

Turn on data switching once. When your carrier loses coverage, your phone moves data to SecondBars by itself.

Frequently asked questions

When should I install my eSIM?

Right after checkout, while you are on Wi-Fi. It takes a few minutes, and then the backup line is already on your phone the next time your carrier drops out.

How do I use it?

Leave your carrier as the default for calls and texts. Turn on automatic data switching once and your phone can move data to SecondBars when your carrier has no coverage. You can also pick SecondBars as the data line by hand.

Do I have to leave my carrier, or change my number?

No. SecondBars is a second line that runs alongside the one you have. Your carrier, your plan and your number stay exactly as they are.

What are renewals?

SecondBars is a monthly plan. It renews each month at the regular price, plus taxes and fees, and your data allowance starts again. It keeps renewing until you cancel.

Can I cancel?

Yes, anytime. There is no contract.

Which phones work?

An unlocked phone that supports eSIM and can run two lines at once, which covers most iPhones and Android phones from the last five years. The compatibility guide shows how to check yours.

Support

Need help? Ask us before or after you buy.

Contact support
$130 / mo
Unlimited
Get SecondBars