Free Call to Serbia from US — $0.36/min (2026)
Call Serbia for $0.36/min with BubblyPhone. Viber more popular than WhatsApp (Balkans pattern). Country code +381, Belgrade 11. Telekom Srbija, Yettel, A1. CET (UTC+1).
Calling Serbia costs $0.36/min with BubblyPhone — $21.60 for a full hour. The country code is +381, with Belgrade at +381 11. Unlike most countries, Viber is more popular than WhatsApp in Serbia — a Balkans-wide pattern. The main carriers are Telekom Srbija, Yettel, and A1. Serbia runs on CET (UTC+1).
Whether you're calling family in Belgrade, friends in Novi Sad, or business contacts in Serbia, here's every option for calling Serbia cheaply or for free.
Viber Is King in Serbia
In most of the world, WhatsApp dominates. But in Serbia (and the wider Balkans), Viber is the #1 messaging app. If you want to reach someone in Serbia for free, install Viber first. WhatsApp works too, but your Serbian contacts are more likely to check Viber messages.
Free: App-to-App Calls
Both people need the app and internet. No charges, no limits.
1. Viber — Dominant
Viber is Serbia's #1 communication app. This is the Balkans pattern — Viber dominates in Serbia, Bosnia, Croatia, and surrounding countries. Voice and video calls work excellent. Nearly everyone in Serbia has Viber installed.
Tip: Install Viber before trying to call Serbia. Your contact is almost certainly on Viber. WhatsApp is a secondary option.
2. WhatsApp — Secondary
WhatsApp is used in Serbia but is secondary to Viber. It's more common among younger, internationally-connected users. Voice and video calls work well.
3. Facebook Messenger — Popular
Facebook is widely used in Serbia. Messenger is a common alternative for voice and video calls, especially among younger users.
4. Telegram — Growing
Telegram is growing in Serbia, particularly for group chats and news. Voice calls work well as a backup option.
Calling Serbian Phone Numbers
Serbia is moderately expensive to call:
| Service | Mobile Rate | Landline Rate | Notes |
|---|---|---|---|
| BubblyPhone | $0.36/min | $0.36/min | Browser, iOS, Android |
| Google Voice | $0.10/min | $0.04/min | US Google account required |
| Rebtel | $0.06/min | $0.02/min | Calling plans available |
| AT&T / Verizon | $3.00-5.00/min | $3.00-5.00/min | Up to 14x more expensive |
Our honest take:Rebtel ($0.06/min) and Google Voice ($0.10/min mobile) are cheaper than BubblyPhone ($0.36/min) for Serbia. But seriously — just use Viber. It's free, and everyone in Serbia has it. For phone numbers, Rebtel offers the best rates.
How to Dial Serbia from the US
# From a US phone:
011 + 381 + area code + number
# From a mobile (or VoIP app):
+381 + area code + number
# Example — calling a Belgrade landline:
+381 11 123 4567
# Example — calling a Serbian mobile:
+381 63 123 4567
# Example — calling Novi Sad:
+381 21 456 7890
Drop the leading 0: Serbians dial numbers starting with 0 locally (like 063 123 4567). When calling from the US, drop the 0 and use +381 followed by the rest. Belgrade is 11, Novi Sad is 21.
Number Format
- Belgrade: +381 11 + 7 digits
- Novi Sad: +381 21 + 6-7 digits
- Mobiles: +381 6X + 6-7 digits
- Drop the leading 0
- Country code: +381
Carriers & Mobile
- Telekom Srbija: State-owned, largest
- Yettel: Second carrier (formerly Telenor)
- A1 Serbia: Third carrier
- Coverage: Good nationwide
- 4G: Available in cities and towns
Which Method Should You Use?
Calling family in Serbia
Viber — free and the #1 app in Serbia. Install it first. WhatsApp works too, but Viber is the standard in the Balkans.
Calling a Serbian business
Rebtel ($0.02/min landline) or Google Voice ($0.04/min). Serbian is the language — but many business people speak English, especially in Belgrade's growing tech scene.
Calling tech contacts
Viber or WhatsApp — Belgrade has a growing tech scene, and most tech professionals speak English. Video calls work great on Serbia's reliable internet.
Tips for Calling Serbia
- Serbia is 6 hours ahead of EST (CET, UTC+1). When it's 10 AM in New York, it's 4 PM in Belgrade. Best window: 9-11 AM EST (3-5 PM Serbia)
- Viber first, WhatsApp second — this is the biggest cultural difference. In Serbia, Viber is what WhatsApp is everywhere else. Install it before calling
- Good internet infrastructure — Serbia has reliable broadband and mobile internet. Video calls work well from Belgrade and other cities
- Serbian language — Serbian is the official language (written in both Cyrillic and Latin scripts). English is increasingly spoken, especially among younger people
- Growing Serbian diaspora — there are significant Serbian communities in Chicago, New York, and across Europe (especially Germany and Austria)
Frequently Asked Questions
Can I call Serbia for free from the US?
Why is Viber more popular than WhatsApp in Serbia?
What is the country code for Serbia?
What is the cheapest way to call a Serbian phone number?
What's the best time to call Serbia from the US?
Call Serbia for $0.36/min
Open BubblyPhone in your browser and dial +381. A 60-minute call costs $21.60.
Try Free — Call Serbia Now