USSD & MMI Code Reference (Romania)
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Romanian operator codes plus generic GSM codes. Leave the search empty to see them all.
| Code | Description | Category | Operator |
|---|
No codes match your search.
Many phones block dialling codes that contain # or * from a web link — copy the code and dial it manually if the link does nothing.
Updated 2026-07-22 (RO operator codes)
For lawful, educational and professional-testing use. Provided as is, without warranty.
USSD codes vs MMI codes
A USSD code (Unstructured Supplementary Service Data) is a short string you
type into the dialer — usually starting with * and ending with #,
like *111# — that opens a live session with your operator's network. Dial it and
the network answers with a small text menu: your balance, your own number, your remaining data.
An MMI code (Man-Machine Interface) is the broader family of dialer codes
defined by the GSM standard itself, so the same code behaves identically on every network and
handset — *#06# to show the IMEI, *21* to set call forwarding,
**04* to change the SIM PIN.
Romanian operator codes
The operator entries here cover the everyday self-service tasks on Digi, Orange and Vodafone Romania — checking credit, finding out your own number (handy on a fresh prepaid SIM), seeing how much data is left, and topping up with a voucher. Filter by operator to hide the rest, or search a keyword such as balance or data. Because operators do occasionally change these codes, the Romanian set is dated and re-checked on a schedule; the generic GSM codes are part of the standard and do not change.
Why a code may not dial from a link
Each row offers a copy button and a tel: dial link. Many phones and browsers
deliberately block dialing a code that contains # or * straight from
a web link, as a defense against malicious pages triggering carrier or factory commands. If the
dial link does nothing, that protection is working as intended — copy the code, paste it into
your phone's dialer, and dial it manually. Everything on this page is a static reference that
runs entirely in your browser; nothing is sent anywhere.
Frequently asked questions
What are USSD and MMI codes?
USSD codes are short strings you dial (like *111#) that talk to the operator — to check your balance, your number or your remaining data. MMI codes are handset-standard supplementary-service codes (call forwarding, caller ID, PIN change) defined by GSM and the same on any network.
Are the Romanian operator codes kept current?
The Digi/Orange/Vodafone codes are curated and dated, and are re-checked on a schedule because operators do change them. The generic GSM codes (*#06#, *21*…) are part of the standard and do not change.
Why does dialling a code from the link sometimes do nothing?
Many phones and browsers block dialling codes that contain # or * from a web link for security. Use the copy button and paste the code into your dialer, then dial it manually.