SLYNUMBER: The Best Verizon Alternative

Slynumber moves the mobile service into an app. Users simply download Slynumber, activate or transfer a real U.S. mobile number, and begin making and receiving calls and text messages from their existing smartphone—without requiring a second phone, SIM, or traditional U.S. wireless plan. Because the number is app-based, it can remain accessible over Wi-Fi or mobile data virtually anywhere in the world, while SLYNUMBER’s integrated global eSIM can provide data connectivity when needed.

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Side by side: a phone showing the Verizon logo next to the SLYNUMBER app with a real U.S. mobile number and cellular data

Verizon and Slynumber represent two fundamentally different approaches to mobile service. Verizon is a traditional wireless carrier: customers subscribe to a wireless plan, activate a SIM or eSIM, and rely on Verizon’s network for their mobile number, voice, messaging, and data connectivity. In this sense, Verizon connects a mobile number to a carrier network and SIM, while Slynumber turns the mobile number into a portable digital identity managed through an app, creating a new, software-based way to deliver mobile service.

4.5/5 Rating in App Store

Key takeaways

Real numbers

SLYNUMBER is a real U.S. mobile number on carrier networks.

Verification-ready

Receive bank, app and government codes on a U.S. mobile number from anywhere.

eSIM data

Pay-as-you-go cellular data in 100+ countries from the same app.

Works abroad

Runs over Wi-Fi or any local data connection, with no roaming pass and no daily fee.

Flat pricing

$49.99 per year or $14.99 per 3 months, with no contract, no device financing and no usage rules about where you are.

Verizon Replacement:
A detailed comparison

SLYNUMBER stands out from Verizon for anyone who lives or travels outside the United States for months rather than weeks. It keeps the one thing you need from a U.S. line, the number itself, and drops the parts that only make sense at home: the daily travel pass, the usage rules and the device financing.

1

features included standard

7

features included standard

VERIZON

SLYNUMBER

Real U.S. mobile number

INCLUDED

INCLUDED

Works abroad with no roaming fees

LIMITED

INCLUDED

Keep the line while living abroad

LIMITED

INCLUDED

Set up in minutes from the app

LIMITED

INCLUDED

Unlimited inbound calls & texts

INCLUDED

INCLUDED

eSIM data in 100+ countries

LIMITED

INCLUDED

Not available

Limited support

Included standard

Both SLYNUMBER and Verizon give you a real U.S. mobile number that banks and apps recognize as a mobile line.

Verizon is built for people who live in the United States and travel from there. Its international services terms say TravelPass may be removed, or data speeds slowed, if international talk, text or data usage exceeds 50% of total usage over any 60-day period, and that Verizon may limit your service if your charges become excessive. Wi-Fi calling to the U.S. from abroad is included at no additional charge, which helps on a trip. For a semester, a posting or a move, the line is on a countdown.

SLYNUMBER offers a real U.S. mobile number that lives in the app, with unlimited inbound calls and texts from anywhere, outbound calling to the U.S., Canada and about 80 international destinations at credit rates, free number porting from your current carrier, and optional eSIM data. It is not a carrier: it does not support 911 or emergency calling, and it runs one number per account on one device at a time.

SLYNUMBER guarantees

SLYNUMBER has

No roaming fees

Your number works over any Wi-Fi or data connection, anywhere in the world. There is no pass to trigger and nothing to switch on before you fly.

SLYNUMBER works for

Verification codes abroad

Banks, payment apps and marketplaces text a real U.S. mobile number, and that number is in your pocket wherever you are.

SLYNUMBER has

eSIM Data

Add pay-as-you-go cellular data in 100+ countries from the same app, billed per GB at the local rate.

A hand holding a phone with the SLYNUMBER app open on a real U.S. mobile number and cellular data

Where a real number matters most

Financial services

Receive PayPal, Zelle and banking verification texts on a U.S. mobile number from anywhere in the world. SLYNUMBER numbers are registered as mobile lines, so they pass the checks that reject VoIP numbers. Individual services set their own rules; if one refuses a number, support swaps it for another.

Social media platforms

Use your SLYNUMBER for banking, messaging apps, Facebook, Instagram and other social accounts, so you can manage conversations, protect your privacy and keep a professional presence while you are away.

Messaging apps

SLYNUMBER works with WhatsApp and Telegram, both of which verify by phone number, so you keep a U.S. identity on the apps your family, bank and employer already use.

A Verizon line does the basics at home. SLYNUMBER adds the tools an advanced app needs.

Call forwarding

Forward incoming calls to a U.S. or Canadian number, free. When the app is offline and forwarding is off, calls go to voicemail.

Block list and spam filtering

Block callers and senders and let automatic spam filtering catch the rest. Do-not-disturb silences the line when you need quiet.

Voicemail transcription

Record a custom greeting and read your voicemails as text, so you review the key details without playing the audio.

Caller ID both ways

See the caller’s name on incoming calls, and set the name recipients see when you call out; support reviews it before it goes live.

Woman smiling at her phone with a SLYNUMBER second line connected on cellular data

Ideal for small businesses and individuals

One app for calls and texts:

Keep your U.S. calls, messages and voicemail on one number, wherever you work

Outbound calling:

Place calls to the United States, Canada and about 80 international destinations at published per-minute rates, paid from credits

Local numbers:

Select a U.S. area code that fits your business, based on current availability

Customer support:

Reach us by email or the help-center form, with a first reply within hours on business days

Real time communication:

Stay reachable on your U.S. number wherever your business takes you, over Wi-Fi or local data

Why SLYNUMBER stands out

SLYNUMBER offers more flexibility abroad than a Verizon line, with features built around how you use a U.S. number from another country.

No roaming charges

Stay connected while traveling without worrying about roaming costs. SLYNUMBER works around the world through an internet connection or with our eSIM data.

Clear calls over any connection

Calls run over your Wi-Fi or data connection the same way at home or abroad. A solid connection gives you a clear line.

Bring your number

Port your U.S. mobile number in for free. Most transfers complete in 3 to 7 business days once Verizon releases the number, and you keep it without the plan.

Accepted by more services

SLYNUMBER numbers are registered as mobile lines, so they pass the checks that reject VoIP numbers. If a service refuses a number, support swaps it.

Couple sharing one phone with a SLYNUMBER number and eSIM connected in Canada

One number. One app. One mobile identity.

Pricing

Pricing and plans

We're always transparent about our pricing. No hidden fees - ever! Purchase your second phone number online now!

Private number
3-month plan
Annual plan

$49.99/ year

When you purchase this plan, here’s what you’ll get:

A US mobile number for calls, texts, and trusted OTP/2FA verifications
$1 in outbound calling credits per month
Option to add data at any time
Start today
Start today
Global data

$5.00 / year

Upon purchasing this plan, the following items are included:

Pay-as-you-go global data
Option to add US mobile number at any time
50MB of data per month
Start today
Start today
Outbound Credits

$10

/ one-time purchase

Credit bundles are available in values of $10, $25 and $50.

Credits can be used for outbound calls and texts. Check rates here. (Number required)
Credits are also used for cellular data packages. Check rates here. (eSIM required)
Available after checkout
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FAQ

Frequently asked questions

Do I need to purchase additional credits?

Your subscription includes unlimited inbound text messaging and phone calls, as well as a 100 outbound credits. You may need to increase your outbound messaging credits depending on your usage. Note: 1 credit= 1-minute phone call, 1 text message, or 1 picture message.

Does SLYNUMBER work with financial services?

Yes, since SLYNUMBER provides real mobile numbers, it works with financial services that require phone number verification. You can securely use it to receive SMS codes and other essential notifications from your bank or other financial institutions.

Can I use SLYNUMBER outside of the US?

You can use SLYNUMBER for personal calls or business calls anywhere in the world with no roaming fees. All you need is a data connection (mobile data or WIFI).

Can I use my SLYNUMBER for international calls and messages?

Yes! SLYNUMBER can only be used to make calls and send messages to many countries across the world. can only be used to make calls and send messages to phone numbers in the US and Canada.Yes. SLYNUMBER works for international calls and messages. International rates apply, so be sure to check your balance, credit used per call or message will vary by destination.

Can I choose my area code?

Yes. SLYNUMBER offers all area codes in the US, so you can keep your phone number private and get a local number that suits you. Purchase your second mobile number, online, today!

Where is SLYNUMBER available?

The SLYNUMBER app can be downloaded in over 150 countries worldwide. It is available on both the Apple App Store and Google Play Store, making it accessible to users across a broad range of regions. Simply search for “SLYNUMBER” in your iPhone or Android app store to check availability in your country.

Why is having a real mobile phone number important?

Real mobile numbers are more versatile and reliable than internet-based VoIP numbers. Many services, including social media, shopping platforms, dating apps, and financial institutions, require real mobile numbers for verification. SLYNUMBER provides you with a second low cost line that functions just like your primary one, ensuring compatibility across various platforms. Skip the phone bill and switch to SLYNUMBER!

What sets SLYNUMBER apart from other second number apps?

SLYNUMBER is the only app that offers real mobile numbers, not just VoIP (Voice over Internet Protocol) numbers. Many other second number apps rely on internet-based numbers that may not work for all services, while SLYNUMBER provides actual mobile service numbers that are more reliable and widely accepted. Real mobile numbers are more versatile and reliable than internet-based VoIP numbers. Many services, including social media, shopping platforms, dating apps, and financial institutions, require real mobile numbers for verification. SLYNUMBER provides you with a second line that functions just like your primary one, ensuring compatibility across various platforms.

SLYNUMBER mobile app on iOS and Android

Your number without borders

Download the SLYNUMBER app, choose your U.S. mobile number, and start using it instantly from anywhere in the world.

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