Key takeaways
- PKP S.A. is a holding company and runs no trains itself. Operations are handled by PKP Intercity, PKP Cargo, PKP SKM and PKP LHS.
- Regional services are no longer part of it. Polregio and the voivodeship railways have been independent since 2008.
- Two letters are enough: E or S for the traction, U/P/T/M for the purpose – that's the whole basic principle.
- 3 kV DC is the biggest technical difference from Germany and determines which locomotives can even enter the country.
- The PKP LHS runs broad gauge. Its 1520 mm line reaches from the eastern border to Upper Silesia and is a special case in the country.
Contents
- 1.Fact file
- 2.Business areas
- 3.Structure & brands
- 4.History at a glance
- 5.How to recognise the company
- 6.Strengths and weaknesses
- 7.What’s still PKP today – and what only sounds like it
- 8.The letter code in four steps
- 9.3000 volts DC and what follows from it
- 10.Long-distance, freight, broad gauge – three worlds
- 11.Part of the group or not?
- 12.Verdict
- 13.Frequently asked questions
Fact file
| Legal form | PKP S.A. as the state holding company at the head of the Grupa PKP |
|---|---|
| Role in the system | runs no trains itself – operations lie with the subsidiaries |
| Infrastructure | PKP Polskie Linie Kolejowe (PKP PLK) as the group's infrastructure manager |
| Electrification system | 3 kV DC across the entire electrified network |
| Track gauge | 1435 mm standard gauge, plus the PKP LHS broad-gauge line at 1520 mm |
| Long-distance services | PKP Intercity with the products EIP, EIC, IC and TLK |
| Regional services | since 2008 outside the group, at Polregio and the voivodeship railways |
| UIC country code | 51 for Poland, written out as PL on the data panel |
| Official website | www.pkp.pl |
Business areas
Structure & brands
History at a glance
How to recognise Polskie Koleje Państwowe (PKP)
Does the train really belong to Polskie Koleje Państwowe (PKP)?
- First letter: E stands for electric, S for diesel (spalinowa)
- Second letter: U for universal, P for express, T for freight, M for shunting
- EN marks electric multiple units, SA diesel railcars
- The number after the letters is the type, the number after the hyphen the individual vehicle
- The pantographs work with 3 kV DC – on heavy trains both pantographs are often raised
- PKP Intercity appears in dark base tones, voivodeship railways in their own regional colours
- Vehicles with 1520 mm gauge belong to PKP LHS and only run on its own line
Strengths and weaknesses
What the company stands for
- The designation system is directly readable on the vehicle – no need to look anything up
- Wide range: veteran electric locomotives and modern multiple units run side by side
- Dense freight traffic in Upper Silesia with easily accessible hubs
- Border-adjacent stations make a day trip from eastern Germany possible
- Many platforms are freely accessible, with no barriers at the entrance
Where it falls short
- The name PKP appears on a lot that no longer belongs to the group at all
- 3 kV DC excludes almost all German locomotives without multi-system equipment
- Regional services are spread across many voivodeship railways and hard to keep track of
- Older vehicles are withdrawn quickly – fleet lists date fast
- Signage and announcements are almost exclusively in Polish outside major stations
Updated: August 2026 – Half the answer is already written on a Polish locomotive. EU07, ST44, EN57, SA134: the first two characters tell you the traction and purpose before you even worry about the number. Only on the question of who operates the vehicle does this system not help – because the Polskie Koleje Państwowe have long ceased to be a single operator and are now a holding company with very different subsidiaries.
Capture Polish designations on the go
Letter code, type number and vehicle number recorded in one go – even if you don't speak the language.
What’s still PKP today – and what only sounds like it
Since the group conversion in the early 2000s, PKP S.A. has been a pure holding company. It holds shares, station buildings and land, but runs not a single train. The actual work is done by the subsidiaries, and they have little to do with one another: long-distance services, freight, infrastructure and a broad-gauge line are four completely different businesses.
The most important cut came in 2008. That’s when regional services left the group and passed to the voivodeships. What today runs as Polregio or as a voivodeship railway like Koleje Mazowieckie is no longer a PKP company – even if the vehicle underneath might still date from PKP times.
| Company | Task | Part of the Grupa PKP? |
|---|---|---|
| PKP Intercity | Long-distance services with EIP, EIC, IC, TLK | yes |
| PKP Cargo | Freight, listed on the stock exchange since 2013 | yes |
| PKP PLK | Network, signals, path allocation | yes |
| PKP LHS | Broad-gauge line at 1520 mm | yes |
| Polregio | Regional services across the whole country | no, independent since 2008 |
| Koleje Mazowieckie and others | Regional services of individual voivodeships | no, owned by the regions |
The letter code in four steps
Read the first letter
E means electric, S means diesel. That settles the traction before you've even looked at the roof.
Read the second letter
U for universal locomotive, P for express service, T for freight trains, M for shunting. For multiple units, EN or SA appears instead.
Note the type number
The number directly after the letters denotes the type – 07, 22, 42, 44, 57. It's what the class does in Germany.
Add the individual number
The digits after the hyphen name the specific vehicle. Only then is the sighting unambiguous.
An example: EU07 is an electric universal locomotive, ET22 an electric freight locomotive, ST44 a diesel freight machine. The EN57 is the electric local-service multiple unit that has carried generations of passengers.
The code describes the vehicle, not the keeper
An EU07 can run at PKP Cargo, at a voivodeship railway or at a private freight company. The letter code doesn't change with any of that. Anyone who really wants to know who owns the machine reads the data panel – the designation at the front tells you nothing about that.
3000 volts DC and what follows from it
The biggest technical difference from Germany isn’t on the vehicle, it hangs above it. Poland runs throughout on 3 kV DC. A German AC locomotive without multi-system equipment simply cannot cross the border.
For you at the trackside that means two things. At border stations such as Rzepin you’ll see locomotive changes and multi-system machines that are barely found inland. And inland you’ll instead see a vehicle world that has developed independently over decades – from veteran electric locomotives to modern multiple units from Polish production, for instance from PESA Bydgoszcz.
DC also has visible operational consequences. At 3 kV, considerably higher currents flow for the same power than at 15 or 25 kV AC. That’s why heavy trains often raise both pantographs, and why conspicuously many substations line the routes. Anyone paying attention to such details often recognises a country’s electrification system before seeing the first locomotive.
The electrification boundary of the network is also a planning factor. A significant part of the secondary lines has no overhead line; diesel railcars of the SA families and occasionally still older diesel locomotives run there. If you’re specifically looking for diesel operation, you need to check the line beforehand – the difference isn’t always marked on the map.
Cross-check the designation
A contradiction between code and observation is almost always a reading error, not a special case.
Long-distance, freight, broad gauge – three worlds
In long-distance services, PKP Intercity runs and no one else. The four categories EIP, EIC, IC and TLK are product names of the same company, not operator hints – EIP stands for the fastest connections, run with the class ED250.
Freight is the most exciting side of Poland. PKP Cargo shares the field with a large number of private companies, and nowhere is that seen better than in Upper Silesia. Tarnowskie Góry lies in the middle of the district and concentrates a significant share of this traffic.
The third world is broad gauge. PKP LHS operates a line at 1520 mm that reaches from the Ukrainian border to Upper Silesia. Trains from the east don’t need to be regauged there – an operational special case that has become rare in Central Europe.
Warsaw, Wrocław, Upper Silesia
With the Traintrack app you compare your sightings with those of others at the same place.
Part of the group or not?
It belongs to the Grupa PKP, if …
- the train runs as EIP, EIC, IC or TLK
- a freight locomotive carries the keeper marking of PKP Cargo
- the vehicle runs on the LHS broad-gauge line
Look more closely, if …
- an older class is running in a foreign livery
- a regional train uses typically PKP vehicles
- a locomotive in border traffic runs without a visible lettering
It doesn't belong, if …
- the train runs for Polregio or a voivodeship railway
- a private freight operator is entered as the keeper
- the vehicle belongs to a foreign railway
Freight hubs are operational railway land
Marshalling yards like Tarnowskie Góry can only be observed from publicly accessible points – bridges, roads, platforms. Entering the facilities is forbidden and dangerous. At stations, the operator's house rules apply; the basic rules are set out in the article on the owner's house rules at stations.
Verdict
Poland is more accessible to spotters than the language barrier might suggest. The designation system is logical, platforms are mostly freely accessible, and the vehicle variety ranges from decades-old machines to new builds from domestic production.
The pitfall lies in the structure. The name PKP sticks to companies that no longer belong together at all, and to vehicles that have changed keeper. Anyone who separates letter code, type and data panel avoids the problem – and anyone who reads up beforehand finds pointers for planning in the article Drehscheibe Online Poland.
Short verdict
Two letters tell you traction and purpose, but never the operator. For that, the data panel counts – along with the realisation that PKP today is above all a group umbrella.
Letter code plus number – and the list holds up
Record both, and your Polish sighting stays unambiguous even after the next change of keeper.
Summary
- Poland rewards spotters who invest ten minutes in the letter system once – after that, almost every locomotive reads itself.
- The group boundary doesn't run where the name PKP appears: regional services and voivodeship railways are separate worlds.
- 3 kV DC explains why cross-border freight trains almost always change locomotive or use multi-system machines.
- Upper Silesia for freight, Warsaw for long-distance services, the western border for the system change – three trips with three different results.
Frequently asked questions
Does PKP still run trains itself today?
No. PKP S.A. is the holding company at the head of the Grupa PKP and holds shareholdings, property and station land. Operations are run by the subsidiaries: PKP Intercity in long-distance services, PKP Cargo in freight, PKP SKM in the Gdańsk metropolitan area. So if you write "PKP" in a sighting list, you haven't actually named the operator yet.
What do the letters in EU07 or ST44 mean?
The first letter names the traction: E for electric, S for diesel. The second names the purpose: U for universal, P for express, T for freight, M for shunting. EU07 is thus an electric universal locomotive, ST44 a diesel freight locomotive. The number after that is the type.
What's the difference between EN57 and SA134?
Both are multiple units, but with different traction. EN stands for electric multiple units – the EN57 has been the backbone of Polish local traffic for decades. SA stands for diesel railcars, which run on non-electrified secondary lines. So the letter tells you whether there's overhead line above the track.
Why does Poland have 3000 volts DC?
The system dates from electrification before and after the Second World War and was never converted. In practice that means a normal German AC locomotive cannot continue over the border. Cross-border trains therefore use multi-system locomotives or change engine. This can be observed well at Rzepin.
Does Polregio belong to PKP?
No, not any more. Regional services were separated from the group in 2008 and transferred to the voivodeships; Polregio emerged from this. Alongside it there are separate voivodeship railways such as Koleje Mazowieckie. These companies partly use vehicles that originate from PKP stock – a common reason for misattributions.
What is PKP LHS?
PKP LHS operates the Linia Hutnicza Szerokotorowa, a line with Russian broad gauge of 1520 mm. It runs from the Ukrainian border to Upper Silesia and allows freight trains from the east to enter without regauging. Vehicles of this company are tied to the line and don't run on the rest of the Polish network.
What do EIP, EIC, IC and TLK mean on the display?
Those are the train categories of PKP Intercity, not separate companies. EIP is the fastest product and is run with the class ED250, EIC and IC stand for classic long-distance services, TLK for the cheaper variant. All four belong to the same company – the category tells you the product, not the operator.
Where in Poland do I see the most freight traffic?
In Upper Silesia. Tarnowskie Góry is one of the country's major marshalling hubs and lies in the middle of the industrial district. There, PKP Cargo and numerous private freight operators meet. Anyone wanting to see border traffic towards Germany instead is better placed at the western border.
Are Polish platforms freely accessible?
Generally yes – barriers like in the Netherlands or France are unusual. House rules of the station operator still apply, and track areas, signal boxes and operational facilities are of course off limits. Security staff are present at large stations; a friendly manner and not blocking the way with a tripod save many discussions.
How do I recognise if a locomotive still comes from PKP stock?
Via the full vehicle number on the data panel, not via the class designation. Classes such as EU07 or SM42 ran at PKP and today also run at private freight operators and voivodeship railways. The keeper is stated on the data panel – how to read it is explained in the guide to the UIC number.
Log vehicles from Polskie Koleje Państwowe (PKP)
Company, vehicle, location and date logged in seconds – and visible to the community.
The operational level in the railway operator database
Who actually runs the trains, with keeper markings and identifying features on the vehicle.
PKP Intercity S.A.
PKP Intercity S.A. is the long-distance passenger company of the Polish state railway group. Anyone wanting to classify its trains reads category, train number and train name separately.
FreightPKP Cargo S.A.
PKP Cargo S.A. is the freight-focused company within the Polish state railway group PKP. Its trains are shaped by bulk freight traffic – and that shows on the wagons.
Local & regionalPolregio S.A. (ehem. Przewozy Regionalne)
Polregio S.A. is a Polish regional passenger operator that previously traded as Przewozy Regionalne. Both names refer to the same company.
Local & regionalKoleje Mazowieckie – KM Sp. z o.o.
Koleje Mazowieckie – KM Sp. z o.o. is a Polish local passenger operator. The name names the Masovian Voivodeship; in the train scene, double-deck vehicles are what stand out most.
FreightPKP LHS Sp. z o.o.
PKP LHS stands for "Linia Hutnicza Szerokotorowa" – the metallurgical broad-gauge line. At 1520 mm gauge, it sits right in the middle of the otherwise standard-gauge Polish network.
Local & regionalPKP Szybka Kolej Miejska w Trójmieście Sp. z o.o. (PKP SKM)
PKP SKM operates the city fast rail service in the Tricity area on Poland's Baltic coast. The name Szybka Kolej Miejska literally means "fast city railway".
Typical vehicles
PKP EU07
The EU07 is the Polish general-purpose electric locomotive par excellence. Its name gives it all away: E for electric, U for general-purpose, 07 for the design. Here's how to identify it with confidence.
ClassPKP EN57
The PKP EN57 is Poland's most-built electric multiple unit and has been the face of Polish local services for decades. Here's how to identify it and its many refurbishments.
ClassPKP ST44 (M62)
The ST44 is Poland's version of the Soviet M62 – six axles, loud and unmistakable. Here's how to read the code and recognise the locomotive in the field.
ClassPKP IC ED250 (Pendolino)
The ED250 is PKP Intercity's Pendolino and Poland's fastest train in regular service. Its designation reveals traction, purpose and design speed.
ClassPKP ET22
The ET22 is the heavy freight electric locomotive of the Polish network: six axles, two three-axle bogies, and a name that states its job directly.
ClassPKP SM42 / SU42
The SM42 is Poland's classic diesel shunting locomotive, nicknamed Tamara. As the SU42, the same class takes on passenger duties – one letter makes the difference.
Where you will find Polskie Koleje Państwowe (PKP)
Spotting locations where you will regularly come across vehicles from this organisation – with viewpoints, the best light and coordinates.
Warszawa Centralna
Warszawa Centralna is Poland's central long-distance station – and one of the darkest major stations in Europe. Between concrete pillars and neon light, high-speed multiple units meet locomotive-hauled trains from the seventies. If you get on top of the lighting, you get a cross-section of Polish long-distance traffic.
Freight hubTarnowskie Góry
In Upper Silesia's industrial belt lies one of the biggest marshalling complexes in Europe. Anyone after freight traffic, private operators and vehicles long since history in western Europe finds more here than at any Polish passenger station – provided they know the public viewpoints.
Border stationRzepin
Rzepin lies just a few kilometres east of the German border and is the point where the Berlin–Poznań–Warsaw axis changes its rolling stock. If you want to see locomotive changes, dual-system machines and heavy freight traffic, this is one of the most honest border stations in Central Europe – no hall, no crowds, no comfort.
Junction stationWrocław Główny
Wrocław Główny is one of the few large stations in Central Europe whose main building is a motif in its own right. Behind the Tudor façade lies a through station where traffic towards Germany, Upper Silesia and Warsaw converges – with vehicles ranging from older-generation electric locomotives to the newest multiple units.
More companies
PKP Cargo
PKP Cargo is the freight arm of the Polish state railway holding – and a special case: unlike most groups, the company runs trains itself while also holding stakes in subsidiaries at home and abroad. On the track you'll find one of Europe's oldest electric-locomotive fleets.
InfrastructurePKP Polskie Linie Kolejowe
PKP Polskie Linie Kolejowe holds Poland's tracks, points and platforms – the company runs no trains itself. The station building, though, belongs to a different company in the same group. Anyone who keeps the two apart understands Polish sightings much faster.
ManufacturerPESA Bydgoszcz
PESA Bydgoszcz grew out of a railway workshop and is today Poland's best-known rolling-stock builder. Elf, Link, Dart and the tram families shape the picture across the whole country – and with Class 633, a PESA railcar even appears on German vehicle lists.
State railwayČeské dráhy (ČD)
Czechia runs on two electrification systems and a third class of vehicle that masters both. České dráhy classes its rolling stock with a scheme that captures exactly that – the first digit tells you traction type and overhead-line voltage in one go.
Related guides from the blog
- Drehscheibe Online Poland: The Comprehensive 2026 Guide to Spotting, Photo Spots, Special Workings
- Who's Actually Running That Train? How to Identify Railway Operators
- Reading the UIC number: what the 12 digits on a vehicle reveal
- Identifying Train Classes: How to Recognise Any Locomotive or Multiple Unit
- Spotting Border Stations: Where Foreign Trains Enter Germany
- Identifying Freight Wagon Types: From Habbiins to Sgns
