Europe
SIP Trunk Romania — +40 Termination & DID Numbers
Romania's multilingual workforce in Bucharest, Cluj-Napoca and Iași supports customers in French, German, Italian and English, so many campaigns both start and end there. Geographic numbers come in two series, 02x and 03x, and the 03x series is common with alternative operators.
Overview
Routing calls to Romania
Most Romania traffic we see ends in Bucharest, Cluj-Napoca and Timișoara, Iași and Constanța. Each +40 prefix is mapped to at least two carriers, and we watch ASR, ACD and PDD per prefix so a degrading route is replaced before your agents notice.
Numbering in Romania is managed by ANCOM. We terminate to geographic, national, mobile and toll-free ranges and price each one separately on the rate sheet. Inside the country, numbers are dialled with a 0 trunk prefix. Strip it before you send the call, and send 40 followed by the national number.
For inbound numbers in Romania, plan on paperwork: proof of address and company or identity documents are usually required before a DID goes live. Termination needs no documents beyond normal account checks.
What you get
What you get in Romania
One account and one balance, with the same SBCs for termination and inbound numbers.
CLI route tier
Caller ID delivered end to end on +40 calls. Use it for sales, support and any traffic where answer rates matter.Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.Number types
Geographic, National, Mobile, Toll-free. DID availability varies by range and city.Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.Multi-carrier failover
Every +40 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.
Number formats
How to dial Romania from your PBX
Send E.164 digits. The sample number below shows the format only.
| Format | Example | Notes |
|---|---|---|
| International (E.164) | +40 21 123 4567 | How the number is written and stored. |
| Sent from your PBX | 40211234567 | E.164 digits with no plus, prefixed by your tech prefix if your account uses one. |
| With 00 exit code | 00 40 21 123 4567 | Accepted on the trunk. We normalise it to E.164. |
| National format | 021 123 4567 | Dialled inside Romania. Strip the trunk prefix before sending. |
Compliance
Romania rules to know
What applies before your first call or your first DID goes live.
Compliance box
- Regulator
- ANCOM
- Caller ID
- A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
- DID KYC
- Usually required
- Note
- Geographic DIDs usually need a local address or proof of presence in the country.
Rules change — our team confirms current requirements before activation.
Use cases
Who uses Romania routes
- 01
Multilingual BPO centres in Cluj-Napoca and Iași
- 02
Romanian-language sales and collections calling 07 mobiles
- 03
0800 freephone lines for national services
Setup
Start calling Romania in 3 steps
- 01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card. - 02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC. - 03
Dial +40
Send 40 + national number in E.164 and check the CDR for your first test call.
Further reading: Buying DID Numbers Abroad: KYC, Formats and Costs
FAQ
Romania SIP trunk questions
What is the difference between 021 and 031 in Bucharest?
Both are Bucharest geographic codes. 031 numbers are typically issued by alternative operators.
How are Romanian mobiles formatted?
They start with 07 nationally. Send 40 7xx... from the trunk.
Who regulates Romanian telecoms?
ANCOM (Autoritatea Națională pentru Administrare și Reglementare în Comunicații).
Do Romanian DIDs need documents?
Usually yes: a local address and company or identity documents.
