40 Country Code: Romania (+40)
Country code 40 (+40) belongs to Romania. Romania uses the international dialing code +40, assigned by the International Telecommunication Union (ITU) under the E.164 standard. The ISO 3166-1 alpha-2 code is RO.
You will see the same code written several ways depending on origin: +40 (universal + prefix, works from mobile), 0040 (from countries that use 00 as their international exit code — most of Europe, Asia, and Latin America), 011 40 (from the US and Canada), 0011 40 (from Australia), or the bare 40. All refer to the same Romania country code.
Below you will find the number format, trunk prefix, major city area codes, and dialing facts specific to Romania (+40).
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Did You Get a Call from +40? Here's What That Means
Any incoming call that displays +40 followed by more digits is originating from Romania. The caller is dialing you from a Romania-registered phone number — either a landline or a mobile on a Romania carrier.
Common reasons people receive calls from +40:
- -Family or friends in Romania calling from a local number
- -Business contacts at Romania-based companies
- -Customer support agents working from a Romania call center
- -Travel-related calls (hotels, airlines, tour operators)
- -Less commonly, robocalls or scam calls that have spoofed a +40 number — if the call is unsolicited, do not return it without verifying the source
To return a call to a +40 number from the US, use Kinvo's Romania dialing guide — calls cost from $0.05/min with no app to download.
Romania Phone Number Format
International Format Example
Domestic vs International
Drop 0 and prepend +40.
Calling Romania Successfully: Common Mistakes & Best Practices
Most failed calls to Romania come from one of four mistakes, not from network problems. The most common is mishandling the leading 0: domestically, Romania numbers are written with 0 at the front (e.g. 0712034567), but that 0 is the domestic trunk prefix and must be removed when calling from outside Romania. Dial +40 followed directly by the local number without the 0.
The second is misreading the area code on landline numbers — Romania numbers may have variable formatting depending on the carrier and city, so confirm the area code with the recipient before dialing. The third is dialing during off-hours — Romania uses local business hours and consumer phones are usually answered between 8 AM and 9 PM local time. The fourth and most expensive mistake is assuming your US carrier's WiFi calling feature makes the call cheap. It does not — see WiFi calling vs VoIP for international calls for why.
For scam-call awareness: +40 is the legitimate Romania country code, and most unsolicited calls from +40 numbers are legitimate calls from Romania-based businesses, hospitals, family members, or call centers serving US customers. Caller-ID spoofing exists, so if a call from a +40 number claims to be from a US government agency, your bank, or the IRS, hang up and call the agency back on its published number. Real authorities never demand payment over the phone.
When you are ready to place a call, the cheapest reliable route is to dial +40 from your browser using Kinvo — no app, no carrier add-on, and the per-minute rate is shown before you connect so there are no bill surprises. The browser approach also works from any laptop, tablet, or phone you happen to have access to, which matters when you're traveling, using a work device, or borrowing someone else's computer.
Calling Romania from Your Browser
To place a call to Romania, dial +40 followed by the local number in the Kinvo browser dialer. Pay-as-you-go, no app required.
Call Romania from Your Browser
Call any Romania number (+40) directly from Chrome, Firefox, Safari, or Edge. No install required. Use it in under 2 minutes.
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Frequently Asked Questions: Romania Country Code
Which country is country code 40?
Country code 40 belongs to Romania. The full international dialing code is +40, also written as 0040 from countries using 00 as their international exit code (Europe, most of Asia, Latin America), 011 40 from the US and Canada, or +40 from any mobile phone.
What is the country code for Romania?
+40 is the international dialing code for Romania, assigned by the ITU under E.164. The ISO 3166-1 alpha-2 code is RO. Equivalent forms — 0040, 011 40, +40, and 40 — all refer to the same Romania country code.
Do I drop the 0 when calling Romania from abroad?
Yes. Romania uses 0 as its domestic trunk prefix. When dialing from another country, remove it and replace with +40. The trunk prefix is only needed for long-distance calls within Romania.
Can I call Romania from my browser?
Yes. Kinvo connects calls to Romania via WebRTC directly from Chrome, Firefox, Safari, or Edge. No app download. Sign up, add credits from $5, and dial +40 followed by the local number.