ÖBB-Personenverkehr AG

Updated: August 2026 – “There goes a 4744” – anyone hearing that sentence for the first time understands nothing at all. Yet that number already contains half the answer to the question of what kind of vehicle is passing. This page explains ÖBB-Personenverkehr AG, the passenger train company of the Austrian state railway group, and gives you the system for reading Austrian vehicle numbers straight off.

What is ÖBB-Personenverkehr AG?

ÖBB-Personenverkehr AG is the passenger train company of the Austrian Federal Railways. It runs passenger trains – freight is run by a separate company within the same group, the ÖBB Rail Cargo Group.

In practice, that means for identification in the field: what’s coupled behind the loco decides. Passenger coaches or a railcar mean passenger services. And because the group has also outsourced the provision of locomotives and staff to a separate company, the machine at the head of a passenger train can well belong to a different part of the group than the service itself.

The four-digit class scheme: learning to read the numbers

In Austria the class is called a Reihe, and the vehicle numbers have four digits. The decisive information sits in the first digit, because it names the vehicle type. Anyone who knows these four numbers can classify any Austrian class designation without looking it up.

First digit	Vehicle type	Typical train picture
1xxx	Electric locomotive	loco with a pantograph in front of a rake of coaches
2xxx	Diesel locomotive	loco with exhaust and cooling housings, no pantograph
4xxx	Electric railcar	multiple unit with a pantograph, traction distributed through the train
5xxx	Diesel railcar	multiple unit with no pantograph, engine noise under the bodyshell

To work through an example: the Class 4744 / 4746 starts with a 4 – so an electric railcar. The Class 5022 starts with a 5 – so a diesel railcar, typical for lines without overhead wires. And the Class 1116 starts with a 1 – an electric locomotive, just as conceivable in front of a passenger rake as in front of a freight train.

Identification in the field: step by step

Where it fits into railway operations

Passenger services are the most visible part of railway operations – and the most predictable. They follow a timetable, stop at platforms and repeat daily. For spotters that means good hit rates, but also: anyone who only notes the train category has nothing to go on later. Only vehicle number plus location plus time adds up to a usable sighting.

How far this company’s passenger workings reach is best seen beyond the national border. At Budapest Keleti the runs from Vienna end, and Austrian sets stand there next to Hungarian rolling stock. On the way there they pass through the border station Hegyeshalom, where the handover between the two networks is visible in operation. The same picture emerges at Bratislava hlavná stanica, barely an hour from Vienna.

It’s also important to separate company and product. A train name on the display board like Nightjet names a product, not a company. Conversely, alongside the state railway group other operators run in Austria too, including WESTbahn in long-distance services and regional companies such as Graz-Köflacher Bahn und Busbetrieb GmbH. Which company is running is determined by the vehicle and the service, not the livery.

What the vehicle type reveals about the line

The class scheme is more than a filing number: it’s an indirect catalogue of the line. A diesel railcar in scheduled use means the section in question doesn’t have continuous overhead wiring. An electric railcar means the opposite. And a loco-hauled set points to a service where capacity or through-running matters more than a quick turnaround.

These conclusions are rules of thumb, not laws – diversions, engineering works and vehicle swaps regularly break them. Still, the reflex is worth having: anyone seeing an unfamiliar class first reads the first digit, then looks at the roof and checks whether the two match. A vehicle from the 5xxx family under overhead wire isn’t a contradiction, but a clue that the train is coming from, or heading to, a non-electrified line.

For documentation this gives a simple rule: alongside the class designation, always note where you saw the vehicle. Only the combination of vehicle and location later reveals which families are really out on which sections – and where that shifts over the years. The guide to identifying classes shows how to systematically identify unfamiliar vehicles along the way.

Recording sightings properly

The guide to keeping a sightings logbook describes how to build a usable collection out of this over months. And anyone wanting to know in general how to work from a vehicle to the company can find the way in Who’s actually running it? Identifying railway operators.

Common mix-ups

• Reihe and Baureihe – the same concept, a different word. Anyone searching Austrian sources for “Baureihe” finds less.
• Reading the four-digit number as the train number – the class designation describes the vehicle, not the service.
• Product name instead of company – train names on displays name products; the operating company isn’t shown there.
• Locomotive as proof – the same 1xxx class can run in front of passenger and freight trains alike. Only the train behind it decides.
• Railcar equals local service – a plausible but not a reliable conclusion; multiple units also turn up on longer runs.

Verdict

ÖBB-Personenverkehr AG is the passenger side of a state railway group split by function. But the real tool for sightings in Austria is the class scheme: four leading digits, four vehicle types – and a number that tells you straight away whether you’re looking at an electric loco, a diesel loco or a railcar.