AlphaTango operator ID for companies: the practical cases

Registering on AlphaTango, the French drone portal, takes a few minutes. The real questions come later, once the drone activity lives inside a business: who is the operator in a group of three companies, under which number does a freelance pilot called in as backup fly, who keeps the three secret characters when the drone manager leaves, and what happens to the number when a sole trader incorporates or a competitor buys the company. This guide covers those cases, without repeating basic registration.

Published on 4 October 2026 — regulations in force as of September 2026.

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In a business, the operator is the legal entity

The basics of registration, who must register, how to mark drones, when to register an aircraft of 800 g or more, are covered in our guide to AlphaTango operator registration. The principle that governs everything else is this: the UAS operator is the person, natural or legal, who bears responsibility for the operation. In a company, that is the company itself, identified by its SIREN (French company registration number), not its managing director, its drone manager or the pilot holding the controller. Employees fly under their employer's number, however many of them there are.

Two EU rules refine that principle. First, you register only once, whatever the number of drones: the European Union Aviation Safety Agency's FAQ states that an operator "cannot register twice", and the number is valid in every member State. Second, a legal entity registers in the State of its principal place of business. A company headquartered in Lyon with branches in Bordeaux and Lille has a single number, shared by all three sites; there is no number per branch.

In a group, the logic is reversed: each legally separate company is a separate operator. A holding company that owns an inspection subsidiary and a surveying subsidiary cannot fly both under a shared number. Each subsidiary that actually operates drones registers in its own name, with its own aircraft, insurance and, where relevant, its own standard-scenario declarations. Lending drones from one subsidiary to another is possible, but the flight is then carried out under the number of the subsidiary organising it, with the matching marking on the aircraft.

Public part, secret part: who keeps what in the company

The operator number, the "operator ID" in English-language documents, has two parts. The public part has 16 characters: it starts with the country code, FRA for France, and ends with a check character. This is what appears on the drones, on quotes, in contracts and on the company website; it is not confidential, and sharing it with a client is actually a sign of professionalism. The secret part consists of three additional randomly generated characters. It is never broadcast by the drone and must not appear on any document: its only use is to load the number into the remote identification device, whose workings are explained in our guide on French electronic identification and Remote ID. Thanks to it and to the check character, the authorities can verify that a broadcast number is genuine and not copied.

Inside a company, those three characters and the AlphaTango account login are assets to be managed like bank credentials. Three simple rules prevent most incidents. One: the account is opened in the company's name, with a role-based email address (for example a generic address for the drone team), never an employee's personal inbox. Two: at least two people know the login, and the list is reviewed whenever someone leaves. Three: the three secret characters only go to the people who programme the identification modules, never by email to a subcontractor or a client. A pilot who leaves the company knowing the secret part could, in theory, load their former employer's number into another aircraft; that is exactly what the secret part is meant to prevent.

Renewal is the other blind spot. Operator registration is valid for five years in France, and individual registrations of drones of 800 g or more have the same duration, but not necessarily the same expiry date. A fleet built up over time accumulates scattered deadlines. A tracking sheet, kept by the same person as the insurance and training certificates, with an alert three months before each date, costs less than having a major client's procurement team discover an expired registration.

Subcontractors, backup pilots and rentals: one flight, one operator

Every flight is carried out under a single operator number, that of the entity organising the operation and bearing responsibility for it. Common arrangements can all be read through that single rule. A subcontractor carrying out the mission with its own drones, its own insurance and its own preparation is the operator of the flight: its aircraft carry its number, not the client's or that of the agency that sold the job. A freelance pilot called in as backup can, conversely, fly within your operation, on your drones marked with your number, following your procedures and under your insurance: they then act as a remote pilot, not as an operator, and their training certificates must match the category of the flight. What does not exist is the "half" flight: a freelancer bringing their own drone marked with their number, while the flight is supposedly covered by someone else's insurance and declaration.

Rental follows the same logic: renting a drone without a pilot makes the renter the operator, who must be registered and mark the aircraft with their own number for the rental period; hiring a service with a pilot leaves the operation with the provider. The choice between the two also has economic consequences: equipment downtime, insurance, and which party carries the preparation work.

These distinctions are not mere paperwork. In their review of regulatory frameworks published in 2014 in the Computer Law & Security Review, Roger Clarke and Lyria Bennett Moses identified uncertainty over "who is responsible" among the many parties involved in an operation as one of the main blind spots of drone public safety, and stressed the importance of an identifiable responsible party (see the study). The operator number is the administrative answer to that question. The contract should therefore explicitly name the operator of each flight, and that name must match the number shown on the aircraft present on site.

Incorporation, takeover, merger: what happens to the number

Since the number is attached to a person, it follows that person's fate. The most frequent case is a sole trader or micro-enterprise becoming a company. The newly created SAS or SARL (French limited companies) is a new legal entity, with a new SIREN: it is a new operator, which must register in its own name and receives its own number. The previous registration is not transferred like a business asset. The change triggers a series of tasks to schedule before the company's first flight: re-marking every drone, reprogramming the identification modules with the new number and its secret part, transferring drones of 800 g or more to the company in AlphaTango, a fresh declaration for each standard scenario operated, and insurance taken out in the company's name. Until these steps are complete, flights invoiced by the company but carried out under the old number create a mismatch that any inspection or procurement team will spot.

A takeover of a drone business depends on its form. If the buyer acquires the company's shares, the legal entity does not change: the number, aircraft registrations and declarations remain valid, and all that is needed is to update contact details and authorised people in AlphaTango, changing the account login. If the buyer only takes over the assets (drones, clients, brand), it becomes an operator under its own number, with all the steps of the previous case. In a merger by absorption, the absorbing company is the one that continues to exist: it must be registered, and its number must appear on the drones taken over from the absorbed company. Finally, a business that moves its principal place of business to another EU State must register with that State's authority, since you cannot be registered twice: the country code of the number changes with it. In unusual cases, checking beforehand with the drone department of the DGAC (French civil aviation authority) avoids risky interpretations.

What the client checks, and at what cost

For a buyer, the most useful check comes down to one comparison: the entity signing the quote and issuing the invoice should be the one registered as operator. Ask for the registration certificate downloadable from AlphaTango, check that the name and number match the company name and SIREN on the invoice, that the validity date covers the mission and, on the day of the flight, that the number marked on the aircraft on site is the same. A quote issued by a holding company or a sales agency while the drones carry another company's number is not necessarily irregular, but it calls for a question: who is the operator of this flight, and who insures it? These checks complement, without replacing, the compliance documents covered in our guide on the duty of vigilance towards a drone contractor. Never ask for the secret part of the number: a contractor who would send it on request mainly shows they do not know what it is for.

On costs, registration and renewal are free. The real cost of a change of legal structure is time and downtime: a few hours of formalities, re-marking and reprogramming every aircraft, and sometimes several weeks unable to fly under a standard scenario if the new declaration was not anticipated. Mission prices do not change for the client, but a contractor announcing a change of legal form should be able to show, before the next job, the certificate in the new entity's name. For all the rules on registration, categories and zones, our complete guide to French drone regulations 2026 brings the procedures together in a single document. And to entrust a mission to an operator whose registration can be verified, request a quote: the AlphaTango certificate comes with the proposal.

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