Tramwaje Warszawskie sp. z o.o. is Warsaw's sole municipal tram operator, carrying 252 million passengers in 2024 and maintaining 346 km of track. It also holds a small internet number resource footprint (AS210831, 85.219.213.0/24) visible in public routing data but not linked in sources to tram operations. The profile details its legal identity, physical control surface, and digital registry perimeter, while noting the absence of named individuals and the narrow digital dependency evidence. Watchpoints include registry changes, routing announcements, and official disclosures tying digital assets to control systems.

Tramwaje Warszawskie sp. z o.o.

Tramwaje Warszawskie sp. z o.o. is Warsaw's sole municipal tram operator, carrying over 250 million passengers annually across 346 km of track. The company also holds the autonomous system AS210831 and the IPv4 block 85.219.213.0/24, creating a secondary digital monitoring surface that is publicly visible but not yet linked to tram operations.

Why It Matters

Tram service reliability, infrastructure works, and passenger communication are the main public-facing consequences of the company's activity. The internet footprint contributes monitoring value: routing or registry changes could indicate digital reorganisation, but absent a proven link to tram systems, these signals should be treated with caution and not misinterpreted as operational risk indicators.

What Public Sources Show

Tramwaje Warszawskie sp. z o.o. is Warsaw's sole municipal tram operator, carrying 252 million passengers in 2024 across 346 kilometres of track. The company is wholly owned by the City of Warsaw and runs a dense network of overhead contact lines, 48 traction substations, and depots. It also holds autonomous system AS210831 and the IPv4 prefix 85.219.213.0/24, a small digital footprint registered in RIPE since August 2021.

The company's core identity is physical transit. Its Public Information Bulletin (BIP) and latest annual report detail operations: 52 million vehicle-kilometres, 346 kmtp of track, and 331.9 km of overhead contact network. Access for passengers—email, phone, and e-Doręczenia—is publicly listed. Governance rests with a shareholders meeting, a supervisory board, and a management board, though no individual names are disclosed.

AS210831 appears in public BGP data and third-party IP resources, assigned 256 IPv4 addresses on 85.219.213.0/24. Upstream connectivity is observed to T-Mobile Polska S.A. and Horyzont Technologie Internetowe sp. z o.o. No active routing announcements are currently documented in the evidence packet, so the prefix's operational status is unclear.

What is missing from the public record is any link between these internet resources and the tramway's control or passenger-information systems. The BIP lists software activity and data processing as ancillary functions, but no source ties the ASN to SCADA, ticketing, or real-time vehicle tracking. The digital footprint therefore remains a secondary monitoring surface, not an indicator of operational dependency.

For someone tracking the company, the primary impact stays on the rails. Service interruptions, infrastructure upgrades, or passenger communication changes affect Warsaw mobility immediately. The digital side offers a narrower signal: a registry update, a withdrawn prefix, or a new BGP announcement could suggest internal reorganisation of digital assets, but without other evidence such moves are not operational alarms.

Key watchpoints include changes to the RDAP or WHOIS record for AS210831, new routing announcements for 85.219.213.0/24, and any official procurement notice or technical document that explicitly names the ASN or prefix in a tram-systems context. Future publication of named executives or financial data would also deepen the profile and sharpen the risk picture.

The current evidence leaves the business model and revenue structure unconfirmed and provides no individual decision-makers. While the company's physical control surface is well-documented, the digital fragment demands careful interpretation: it is a registry artefact, not a proven operational nerve. Until official sources connect the two, the internet footprint should be read as a limited, public-facing side note to a much larger municipal transit story.

Operating Surface

Tramwaje Warszawskie sp. z o.o. operates and maintains Warsaw's tram network, providing collective public transport as mandated by its city ownership. It manages extensive physical infrastructure—track, overhead contact lines, and traction substations—while also administering a RIPE-registered autonomous system and a small IPv4 prefix. The digital resources are a limited, publicly visible side presence, not a replacement for the company's core transit identity.

The company is tracked because of its critical transportation role in Poland's capital, where service disruptions directly affect hundreds of thousands of daily journeys. Its internet resources add a narrower monitoring channel: changes in AS210831's registry record, routing announcements, or upstream dependencies could signal digital shifts worth noting, though the public evidence does not currently tie them to operational control systems.

Watchpoints

The company's primary importance remains its role as the critical transit operator in Warsaw; the internet footprint provides a secondary, public-facing digital signal that is low-risk but could alert to digital reorganisation if registry records change or routing appears. Without documented operational linkage, these signals are not indicators of control-system compromise.

Monitor RDAP/WHOIS changes for AS210831 and prefix 85.219.213.0/24; any new BGP announcements or upstream shifts could indicate network activity. Official statements, procurement notices, or technical documents explicitly linking AS210831 to tram control or passenger services would raise the profile's infrastructure criticality.

No public source ties the internet resources to any operational technology; the purpose of the /24 block remains unknown. Financial data, revenue model, and named executives are absent. These gaps limit the ability to assess the company's digital risk posture and operational dependencies.

Sources

• Registry RDAP / WHOIS record - public-source identity and registry context for Tramwaje Warszawskie sp. z o.o..
• bip.tw.waw.pl - Official BIP page identifies Tramwaje Warszawskie sp. z o.o., gives address ul. Siedmiogrodzka 20, 01-232 Warszawa, and lists NIP 5252256724 and REGON 015313954.
• bip.tw.waw.pl - BIP legal status page gives the full company name, KRS 0000145910, and states the 1 January 2003 transformation into a single shareholder commercial law company of the City of Warsaw.
• bip.tw.waw.pl - BIP activity page says the company conducts tramway collective public transport in Warsaw and lists related activity categories including transport, repair, construction, electrical installations, software activity and data processing.
• bip.tw.waw.pl - BIP contact page publishes organizational contact routes including correspondence email, e-Doręczenia address, passenger email and phone access.
• bip.tw.waw.pl - BIP governance page states that the company bodies are the shareholders meeting, supervisory board and management board.
• 2024.raport-roczny.tw.waw.pl - The 2024 annual report identifies Tramwaje Warszawskie as a Warsaw municipal tram company and provides company registration context.
• 2024.raport-roczny.tw.waw.pl - The 2024 annual report states 52,070,127 operated kilometres and 252,397,918 passengers in 2024.
• 2024.raport-roczny.tw.waw.pl - The 2024 annual report infrastructure section reports 346.2 kmtp of track, 331.9 km of overhead contact network and 48 traction substations.
• ipgeolocation.io - Public ASN page identifies AS210831 as TramwajeWarszawskie, organization Tramwaje Warszawskie sp. z o.o., registry RIPE, allocation date 2021-08-27, and route 85.219.213.0/24.
• ipinfo.io - Public ASN page identifies AS210831 with 256 IPv4 addresses, no IPv6 addresses, IP range 85.219.213.0/24, RIPE registry status, and upstreams T-Mobile Polska S.A. and Horyzont Technologie Internetowe sp.z.o.o.