How to Get a Second Phone Number on Android or iPhone in 2026

Tired of giving out your real phone number every time you list something on Craigslist, sign up for a new service, or need a separate line for work? You’re not alone, and honestly, with robocalls and spam texts worse than ever, it’s hard to blame anyone for wanting to keep their main number private.

The good news is that adding a second phone number to your Android or iPhone is way easier in 2026 than it used to be. Most modern phones support dual SIM or eSIM (more on that in a second), and there are plenty of apps that can give you a second number in minutes. In this guide, I’ll walk you through three different approaches so you can pick the one that fits your situation.

Which Method Is Right for You?

Before diving into the steps, it helps to know your options. Here’s a quick breakdown:

Approach	Pros	Cons	Best For
Dual SIM / eSIM (carrier)	Native integration, reliable SMS, works for 2FA	Requires a second carrier plan; costs more per month	Work line, serious business use, travel SIM
Second-number app (VoIP)	Can be free or cheap, easy to discard, great for privacy	Needs data/Wi-Fi; some apps blocked for bank verification texts	Craigslist/Airbnb, side gigs, keeping spam off your real number
Carrier add-on second number	Native feel, no separate app needed	Limited carriers; may have extra fees	Users who want everything managed by their carrier

Not sure which to pick? If you need the number to receive bank verification texts or two-factor authentication codes reliably, go with Option 1 (dual SIM/eSIM). If you just want a throwaway number for privacy or a side project, a second-number app is usually the fastest and cheapest way to go.

Option 1: Add a Second Carrier Number via Dual SIM or eSIM

Most mid-range and flagship phones sold today support dual SIM, meaning you can run two separate phone numbers on one device. Many phones now use eSIM technology, which is basically a digital SIM card built into your phone that you can activate without swapping any physical cards. Pretty handy.

This is the most “official” way to get a second number. You’ll get a real carrier line that works just like your main number, including for SMS verification codes that some VoIP apps can’t receive.

On iPhone

1. Contact your carrier and get a second line. Call, visit their website, or go into a store. Ask for an eSIM if supported, most major carriers (Verizon, AT&T, T-Mobile, etc.) can activate one digitally and send you a QR code.

2. Open Settings and tap Cellular (or Mobile Service, depending on your region).

3. Tap Add eSIM. You’ll see a few options, choose Use QR Code and scan the code your carrier provided, or tap Enter Details Manually if they gave you an activation code instead. Follow the on-screen prompts until the new plan shows as active.

4. Label your lines. Back in Settings → Cellular, tap each line and give it a name like Personal and Work so you always know which is which.

5. Set your defaults. Still in Settings → Cellular, choose which line handles calls, which handles SMS, and which uses cellular data. You can also set a default line per contact. Just open a contact card and assign a preferred line so calls always go out on the right number automatically.

6. Switch lines when making a call. In the Phone app, you’ll see the active line name near the top of the keypad. Tap it to switch before placing a call.

7. Turn a line off after hours. In Settings → Cellular, toggle a line off when you don’t want to receive calls. This is great for keeping work calls quiet on weekends.

On Android

The exact menu names vary a little by phone brand, but the general flow is the same. Look for Network & Internet (Pixel phones) or Connections (Samsung) in your Settings app.

1. Confirm your phone supports dual SIM or eSIM. – On a Pixel: go to Settings → Network & Internet → SIMs – On a Samsung: go to Settings → Connections → SIM card manager If you see two SIM slots or an Add eSIM option, you’re good to go.

2. Get a second line from your carrier. Ask for a physical SIM (for the second slot) or an eSIM. Most carriers support both.

3. Add the second SIM or eSIM. – Physical SIM: Power off your phone, insert the second SIM into the second slot, and power back on. Android should detect it automatically. – eSIM: Go to Settings → Network & Internet → SIMs (Pixel) or Connections → SIM manager (Samsung), tap Add eSIM or Add mobile plan, scan the QR code from your carrier, and follow the prompts.

4. Set your default SIM for calls, SMS, and data. In your SIM settings, you’ll see separate options for each. Set them to whichever line makes sense, or choose Ask every time for calls if you want to pick manually each time you dial.

5. Use the SIM selector when calling or texting. Most Android dialer and messaging apps will show a SIM selector (SIM 1 / SIM 2) when you place a call or send a message. Just tap the right one before hitting send.

Option 2: Use a Second Phone Number App

Don’t want to deal with your carrier or pay for a second plan? A second-number app is the way to go. These apps give you a real phone number that runs over your internet connection (Wi-Fi or mobile data), with no physical SIM required. You make and receive calls and texts right inside the app, and whoever you call just sees your second number on their caller ID. They never see your real number.

Here are the best options in 2026:

Google Voice (Free)

Google Voice is probably the most popular free option, especially if you’re already in the Google ecosystem. You get a real US phone number, free calling and texting to US numbers, voicemail transcription, and spam filtering. It works on Android, iPhone, and in a browser.

The one catch: some websites and banks won’t accept Google Voice numbers for SMS verification. It’s not a dealbreaker for most uses, but worth knowing upfront.

1. Go to voice.google.com and sign in with your Google account.

2. Follow the prompts to search for an available number. You can search by area code or city to get a local number.

3. Select a number you like and confirm it. Google Voice will link it to your Google account.

4. Download the Google Voice app from the Google Play Store or App Store.

5. Sign in and you’re ready to make calls and send texts from your new number.

6. Optional: In the Google Voice settings, you can turn on call forwarding to your main number so incoming calls ring through normally. This is handy if you’d rather not keep the app open all the time.

TextNow (Free with Extras)

TextNow gives you a free second number with calling and texting included. It’s ad-supported on the free tier, but you can pay to remove ads and unlock extras like scheduled messages. TextNow even offers an optional eSIM if you want your second number to work without Wi-Fi. Download it from the Google Play Store or App Store.

Sideline (Paid, Business-Friendly)

Sideline is aimed at freelancers and small business owners who want a professional second line. It’s more polished than a basic free app and includes features like a shared number for teams, auto-reply, and business hours settings. Pricing starts around $9.99/month. Download it from the App Store or Google Play Store.

Burner (Great for Temporary Numbers)

Burner is perfect if you just need a number for a short period, like when you’re selling stuff online or testing a new project. Numbers “burn” (expire) after a set time, which is actually the point. You can also get a permanent premium line for around $4.99/month. Download it from the App Store or Google Play Store.

Hushed and Quo (More Advanced Options)

Hushed is a solid privacy-focused option with international numbers available in over 40 countries, which is handy if you travel or need a local number abroad. Quo is more of a business tool, with features like shared numbers for teams, call recording, IVR (an automated phone menu), and automation integrations. If you’re running a side business or freelancing, Quo is worth a look.

General Setup Steps for Any Second-Number App

No matter which app you pick, the setup process is basically the same:

1. Download and install the app from the App Store or Google Play Store.

2. Create an account. Most apps just need an email address. Google Voice uses your existing Google account.

3. Pick your number. Choose a country/region and enter a preferred area code. Select from the available numbers shown.

4. Grant permissions. Allow microphone access (for calls) and notifications (so you don’t miss incoming calls and texts).

5. Start using it. Make calls and send texts from inside the app. Callers will see your second number, not your real one.

6. Set it as your default calling app (optional). – On Android: Go to Settings → Apps → Default apps → Phone app and select your VoIP app. – On iPhone: Go to Settings → Apps → Phone → Default Calling App and choose your preferred app.

Option 3: Check If Your Carrier Offers a Second Number Add-On

Some carriers offer a built-in second number that works directly with your phone’s native dialer and messaging apps, so no separate app is needed. Verizon, for example, has a “Second Number” add-on that uses your phone’s existing dual SIM capability and integrates with the standard Phone and Messages apps.

The process varies by carrier, but generally:

1. Confirm your phone is dual SIM capable (see Option 1 above).

2. Log in to your carrier account online or call support and ask about a second number add-on.

3. The carrier will either send you a physical SIM or let you activate an eSIM.

4. Once set up, both numbers appear in your phone’s standard SIM settings, with no extra apps required.

Check your carrier’s website and search for “second number” or “dual number” add-on to see what’s available in your area.

Tips and Troubleshooting

Common Issues

Problem: My second-number app isn’t ringing for incoming calls.

This is almost always a permissions or battery optimization issue. To fix it:

• Make sure notifications are enabled for the app in your phone’s settings.

• On Android, check that battery optimization isn’t killing the app in the background. Go to Settings → Battery → Battery optimization, find your app, and set it to Don’t optimize.

• Make sure you have a stable Wi-Fi or data connection, as VoIP apps need internet to work.

Problem: My second number isn’t working for bank or service verification texts (2FA).

VoIP numbers (Google Voice, TextNow, etc.) are sometimes blocked by banks and certain websites for SMS verification. If you need a second number that’s guaranteed to work for 2FA, your best bet is a real carrier line via dual SIM or eSIM (Option 1). True carrier numbers almost always work.

Problem: My phone is using the wrong SIM for data and I’m getting unexpected charges.

On dual SIM phones, it’s easy to accidentally set your work or travel SIM as the default data line. Double-check your SIM settings:

• iPhone: Go to Settings → Cellular and check which line is set for cellular data.

• Android: Go to Settings → Network & Internet → SIMs (or SIM manager) and check the mobile data setting.

Problem: I want to turn off my work number after hours.

• Dual SIM: Toggle the work line off in Settings → Cellular (iPhone) or your SIM manager (Android).

• Second-number app: Check the app’s settings for a “business hours” or “Do Not Disturb” option. Sideline and Quo both have this.

Pro Tips

• Port your existing number: Some apps like Google Voice let you port your current number in, though there may be a small fee. Check the app’s support page for details.

• You don’t need to tell your carrier about VoIP apps: App-based second numbers run over your existing data connection. Only dual SIM/eSIM setups require carrier involvement.

• Set a contact-specific default line on iPhone: Open a contact, tap Edit, and assign a preferred line. Calls and texts to that contact will always go out on the right number automatically, so you won’t accidentally call your boss from your personal number.

• International numbers: If you need a number in another country, check out Hushed or Skype Numbers, which support international numbers in many regions.

Wrapping Up

Getting a second phone number used to mean buying a whole separate device or jumping through hoops with your carrier. In 2026, you’ve got real options, whether that’s a full carrier line via eSIM, a free app like Google Voice, or something more business-focused like Sideline or Quo. For most people just looking to keep their real number private, Google Voice or TextNow will do the job without spending a dime. If you need something more reliable for work or 2FA, the dual SIM/eSIM route is worth the extra cost. Either way, you’ll finally be able to hand out that second number on Craigslist without dreading the spam calls that follow.