International Call Forwarding: What You Need to Know in 2026

March 2, 2026

If you’re traveling or living abroad, keeping your number reachable can get expensive fast—especially with roaming fees. International call forwarding lets you redirect calls from your regular number to another number (or an app-based number) so you can answer from anywhere. It’s easy to set up, and it’s often much cheaper than roaming.

What Is International Call Forwarding?

International call forwarding is exactly what it sounds like: redirecting calls from your home phone number to another number in a different country. When someone dials your regular number, the call automatically routes to wherever you are in the world—whether that’s a local SIM card in Thailand, a hotel room in Paris, or even a virtual number on your smartphone.

Your callers don’t need to know you’re abroad. They dial your familiar number, and you answer—no complicated international codes required on their end.

How Does It Actually Work?

Think of international call forwarding like setting up mail forwarding at the post office. Instead of letters going to your old address, they’re redirected to your new one. With call forwarding, incoming calls hit your original number, then get instantly rerouted to your international destination number through your carrier’s network or a virtual phone service.

There are several types of call forwarding you can use:

Unconditional forwarding – All calls forward automatically
Conditional forwarding – Calls only forward when you’re busy or don’t answer
Selective forwarding – Only specific numbers get forwarded

Why You Need International Call Forwarding

Let’s be real: international roaming charges are ridiculously expensive. I’m talking USD 2-5 per minute expensive. If you’re traveling for more than a few days, those costs add up faster than your vacation photos.

For Travelers & Expats

International call forwarding helps you avoid those wallet-draining roaming fees while keeping your original number active. Your family can still reach you at your regular number, your bank can call to verify transactions, and you’ll receive those crucial two-factor authentication codes without missing a beat.

For Businesses & Remote Workers

If you’re running a business or working remotely across time zones, international call forwarding is a game-changer. You can establish a local presence in foreign markets without renting office space, provide customer service from anywhere, and maintain that professional image—even when you’re answering calls from a beach in Bali.

For Digital Nomads

As someone who might work from coffee shops across multiple continents, you need reliable communication that travels with you. International call forwarding keeps your work number consistent, separates personal from professional calls, and ensures clients never know you’re six time zones away.

How to Set Up International Call Forwarding

Setting up international call forwarding is surprisingly straightforward. Here’s your step-by-step guide:

Option 1: Forward Your Existing Number

Step 1: Check with Your Carrier

Contact your mobile carrier to verify they support international call forwarding. Most major U.S. carriers (Verizon, AT&T, T-Mobile, Sprint) offer this service, but capabilities and costs vary widely.

Step 2: Activate Call Forwarding

Here are the magic codes you’ll need:

For Verizon & Sprint (CDMA):

Enable: Dial *72 + your international number + press SEND
Disable: Dial *73 + press SEND

For AT&T & T-Mobile (GSM):

Enable: Dial *21 + your international number + # + press SEND
Disable: Dial #21# + press SEND

Important note: These codes work differently depending on whether you’re on a CDMA or GSM network. If you’re traveling internationally, GSM codes are more reliable worldwide.

Step 3: Get Your International Destination Number

This is the number you’ll forward calls to. Options include:

A local SIM card from your destination country (cheapest for long stays)
A real second phone number app (most flexible)
A VoIP number like Skype (good intermediate option)

Step 4: Test Everything

Before you board that plane, call your number from a friend’s phone to make sure forwarding works properly. Check that voicemail routes correctly and that you can hear the caller clearly.

Option 2: Skip the Hassle with a Real Second Phone Number App

Here’s a secret: traditional call forwarding isn’t your only option. In fact, it’s not even the best option anymore.

Real second phone number services like TrueNumber offer a smarter, more flexible solution. Instead of dealing with carrier codes and international routing complications, you get a real phone number that lives entirely in an app on your smartphone. Unlike typical virtual numbers that often get rejected by verification systems, TrueNumber gives you an authentic mobile number that works exactly like your primary number. No SIM card needed, no activation codes, no headaches.

With TrueNumber, you can:

Get set up in literally 60 seconds
Choose a local area code
Make WiFi calls with HD voice quality
Receive calls from anywhere in the world over Wi-Fi or mobile data
Send and receive texts (including those crucial verification codes)
Keep your personal number completely private
Receive verification codes from 50+ apps – Unlike typical virtual numbers, TrueNumber works with WhatsApp, Telegram, TikTok, Instagram, Facebook, PayPal, Amazon, Uber, and more

The best part? It works globally, so whether you’re in Tokyo, Toronto, or Timbuktu, your second number travels with you.

What Does International Call Forwarding Cost?

Let’s talk money—because nobody likes surprise phone bills.

Traditional Call Forwarding Costs

Monthly Fees: USD 5-50 depending on your carrier and plan

Per-Minute Rates: This is where it gets tricky. International forwarding rates vary dramatically by destination:

Popular destinations (UK, Canada, Mexico): USD 0.05-0.15 per minute
Other countries: USD 0.20-0.50+ per minute
Some landline-to-landline calls may be free in specific countries

Hidden Costs to Watch For:

Activation fees (USD 0-50)
If your phone is on while abroad, you might pay BOTH forwarding charges AND roaming charges
Toll-free numbers often don’t work internationally or incur extra fees
Voicemail access from abroad can cost USD 1-2 per call

Second Phone Number Costs

Services like TrueNumber charge a transparent flat monthly subscription with no hidden costs, activation fees, or maintenance charges. Since calls route over the internet rather than traditional phone networks, you avoid those per-minute international charges for calls to USA, Canada, and Mexico. You just need a Wi-Fi connection or mobile data.

Quick Cost Comparison:

If you’re traveling for 2 weeks and expect 30 minutes of calls:

Traditional forwarding: USD 15-30 in forwarding fees + your regular plan
Real second number (TrueNumber): Flat monthly subscription + any data costs (usually negligible)

Smart Tips for International Call Forwarding

Always Test Before You Travel

Nothing’s worse than landing in a foreign country and discovering your forwarding didn’t activate. Test your setup a day or two before departure.

Turn Your Phone Off or Use Airplane Mode

If you’re forwarding to another number, keep your original phone in airplane mode to avoid accidental roaming charges. Those charges stack on top of forwarding fees.

Set Up Voicemail-to-Email

Many carriers offer voicemail transcription that sends messages to your email. This way, you never miss important messages even if you can’t answer.

Inform Important Contacts

Let your bank, employer, and family know you’re traveling. They’ll understand if there’s a slight delay when answering calls.

Know How to Disable Remotely

Save your carrier’s international support number before you leave. You might need to adjust settings while abroad:

Verizon: +1-908-559-4899
AT&T: +1-800-331-0500
T-Mobile: +1-800-937-8997

Consider Time Zones

Set up conditional forwarding based on business hours. There’s no reason to wake up at 3 AM for a sales call that can wait.

Making the Right Choice for Your Situation

Choose Traditional Call Forwarding If:

You’re traveling for just 1-2 weeks
You need to keep your exact same phone number
You have unlimited international forwarding in your plan
You’re comfortable with carrier codes and setup

Choose a Real Second Number (in TrueNumber) If:

You travel frequently or for extended periods
You want a second number for privacy or business
You need both calls and texts to work seamlessly
You want the simplest possible setup
You need to receive verification codes while abroad for app registrations
You’re tired of expensive international charges
You want a real number that works with all services
You need to register for social media, dating apps, or AI tools without exposing your personal number

Stay Connected, Stay Smart

International call forwarding doesn’t have to be complicated or expensive. Whether you choose traditional carrier-based forwarding or embrace the flexibility of a real second phone number, the key is planning ahead and understanding your options.

For most travelers, digital nomads, and internationally-minded folks in 2026, real second phone number services offer the sweet spot of convenience, cost, and capability. No more wrestling with activation codes or worrying about per-minute charges. Just pure, simple connectivity wherever life takes you.

Ready to simplify your international calling? Get your real second phone number with TrueNumber in just 60 seconds. No SIM card required, works globally on iOS and Android, and perfect for travel, business, and privacy. With the ability to receive verification codes from 50+ popular apps and services, you’ll never worry about being locked out of your accounts while abroad. Download the app today and stay connected on your terms.

Frequently Asked Questions (FAQs)

Q1: Does international call forwarding work with toll-free numbers?

Usually, no. Most U.S. and Canadian toll-free numbers (like 1-800 or 1-888) cannot be forwarded directly to an international number. If you need to answer toll-free calls abroad, your best bet is to port that number to a VoIP provider or use a virtual number service that handles the international routing for you.

Q2: Will my callers know their call is being forwarded internationally?

Nope! To the person calling you, it feels exactly like a normal domestic call. They dial your regular number, hear the standard ringtone, and have no idea you’re answering from across the globe (unless you tell them, of course!).

Q3: Can I forward to multiple numbers simultaneously?

Traditional carrier forwarding typically only allows you to forward to one single number at a time. However, if you use a virtual phone system or an advanced VoIP provider, you can set up “simultaneous ringing” (where multiple phones ring at once) or “sequential ringing” (where it tries one number, then the next).

Q4: What happens if my international phone is off or out of service?

If your forwarded-to phone is turned off or loses signal, the call will follow the rules of that destination number. Usually, this means the call will go to the voicemail of your international number, not your original home voicemail. This is why it’s crucial to set up voicemail on your destination phone!

Q5: Do I need an unlocked phone for international call forwarding?

Not necessarily for the forwarding itself, but yes if you plan to put a local international SIM card into your device to receive those forwarded calls. If your phone is locked to your home carrier, you’ll need to use a virtual number app (like TrueNumber) over Wi-Fi, or carry a second unlocked phone for the international SIM.

Q6: Can I forward calls from a landline to an international mobile?

Yes! You can forward a home or office landline to an international number, provided your landline carrier supports international dialing. You’ll usually set this up using a *72 code on the landline phone, but be warned: landline providers often charge steep per-minute rates for international forwarding.

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