TramwajeWarszawskie

Tramwaje Warszawskie sp. z o.o. is the sole tram operator in Warsaw, with massive physical infrastructure and a small but observable digital footprint (AS210831). Its operational continuity is critical for city mobility, but the role of its internet resources in tram operations is publicly opaque. The profile is constrained by the absence of network architecture disclosures, named staff, and financial details. Watchpoints center on registry changes, new routing activity, official disclosures, and personnel emergence.

TramwajeWarszawskie

Tramwaje Warszawskie sp. z o.o. is the sole tram operator in Warsaw, carrying over 252 million passengers annually across 346 km of track with 604 vehicles. The company, a municipal entity of the City of Warsaw, also holds internet number resources AS210831 and IPv4 prefix 85.219.213.0/24, but the functional role of these resources in its operations is not publicly documented.

Why It Matters

Disruption to Tramwaje Warszawskie's digital systems could degrade tram service continuity across Warsaw. Network outages or cyber compromises affecting passenger information, operational coordination, or back-office functions could have city-wide mobility impacts. Although the exact role of AS210831 is unconfirmed, any change in its routing or registry status would alter the observable risk surface of a critical municipal operator.

What Public Sources Show

Tramwaje Warszawskie sp. z o.o. is the sole tram operator for Poland's capital, carrying over 252 million passengers in 2024 across 346 km of track with 604 vehicles. The company, wholly owned by the City of Warsaw, is a critical municipal service provider whose operational continuity directly affects urban mobility.

Its digital footprint includes AS210831 and prefix 85.219.213.0/24, though the precise relationship between those network resources and tram operations remains publicly undocumented.

Public sources establish the company's legal identity and scale. Official BIP pages confirm its registration (KRS 0000145910, NIP 525-22-56-724), address in Warsaw, and transformation in 2003 from a budget entity into a commercial-law company of the city. Warsaw's transport portal explicitly states that all tram passenger services in the capital are performed by Tramwaje Warszawskie sp. z o.o.

The 2024 annual report documents operational metrics: 252.4 million passengers, 52 million vehicle-km, 346.2 km of track, 984 switches, 331.9 km of traction network, and 48 substations.

Multiple registry and routing sources attribute AS210831 to the company. IPIP.NET mirrors RIPE WHOIS data showing assignment in August 2021, with the as-name TramwajeWarszawskie and organization Tramwaje Warszawskie sp. z o.o. Cloudflare Radar and IPinfo confirm the association and list a single visible IPv4 prefix, 85.219.213.0/24, with no announced IPv6 space.

No active BGP prefix sample is present in the current evidence set, so the public assessment is limited to ASN identity until routing evidence changes.

The company controls extensive physical infrastructure, including trams, tracks, traction power, substations, and passenger information displays. Its digital surface includes the official website tw.waw.pl, the Public Information Bulletin (BIP) portal, and the internet number resources.

The absence of a PeeringDB entry, named technical contacts, or public network architecture documentation means that the functional role of AS210831 cannot be determined; it could serve back-office telemetry, passenger-facing web services, or third-party needs.

Tram service continuity relies on integrated physical and digital systems. A cyber compromise or network outage affecting digital information flows could degrade passenger experience and operational coordination, potentially causing city-wide mobility disruptions. Although AS210831 is not confirmed as a safety-critical control network, changes to its routing or registry status would alter the observable digital risk surface of a critical municipal service.

Analysts should monitor the following signals: modifications to the WHOIS/RDAP record for AS210831 or its prefix; new BGP announcements or prefix withdrawals that could indicate service changes; official publications from the company detailing network architecture, cybersecurity incidents, or procurement of connectivity services; and the emergence of a named technical or administrative contact in public records or industry forums.

The evidence leaves significant gaps. The company's revenue model—whether ticket sales, municipal subsidies, or a combination—is not disclosed. The nature and criticality of any commercial transit or peering relationships for AS210831 are unknown. The exact role, if any, of internet connectivity in tram control or safety systems remains unconfirmed. Until those details emerge, the profile's intelligence value is bounded by the public observable surface.

Operating Surface

Tramwaje Warszawskie sp. z o.o. is the Warsaw municipal tram operator, responsible for all passenger tram services in the capital. Public sources place it as the sole provider of tram infrastructure, maintenance, and passenger mobility, while registry and routing records associate it with AS210831 and a modest IPv4 footprint in Poland.

The subject matters because its operational continuity directly affects the daily mobility of hundreds of thousands of Warsaw residents. Changes to its digital surface—especially the status, routing, or registry details of AS210831—could signal shifts in the company's network dependency, cybersecurity posture, or service resilience, with potential city-wide consequences.

Watchpoints

Tramwaje Warszawskie represents a critical municipal service with an under-documented digital dependency. While the company's physical scale is well evidenced, its network topology and reliance on AS210831 for operational technology are not publicly understood, making the digital risk surface ambiguous.

Watch for changes to the WHOIS record of AS210831, new BGP prefix announcements, publication of network architecture or cybersecurity incidents by the company, and the appearance of a PeeringDB entry or named technical contact.

Key gaps include the exact role of AS210831 in tram operations, the nature of upstream transit or peering, whether internet connectivity extends to safety-critical systems, and the company's revenue model. No named personnel are linked to the network resources.

Sources

• Registry RDAP / WHOIS record - public-source identity and registry context for TramwajeWarszawskie.
• bip.tw.waw.pl - Official BIP status page identifies Tramwaje Warszawskie sp. z o.o., its Warsaw address, KRS 0000145910, NIP 525-22-56-724, share-capital context, and transformation into a commercial-law company of the City of Warsaw.
• bip.tw.waw.pl - Official BIP activity page lists the company's main activity as urban passenger transport and additional activities including scheduled passenger transport, repair and maintenance, rail-road construction, electrical installation, advertising, software, and data processing.
• transport.um.warszawa.pl - Warsaw municipal transport page says all tram passenger services in the capital are performed by Tramwaje Warszawskie sp. z o.o.
• 2024.raport-roczny.tw.waw.pl - Official 2024 annual-report operational page reports 252,397,918 passengers carried in 2024, 52,070,127 km travelled, 604 trams/sets, and punctuality statistics.
• 2024.raport-roczny.tw.waw.pl - Official 2024 annual-report infrastructure page reports 346.2 km of single tram track, 292.4 km used by passenger service, 984 switches, 331.9 km of traction network, and 48 substations.
• Registry RDAP / WHOIS record - IPIP.NET mirrors RIPE WHOIS data showing AS210831, as-name TramwajeWarszawskie, organization Tramwaje Warszawskie sp. z o.o., country PL, RIPE source, assignment date 2021-08-27, and IPv4 prefix 85.219.213.0/24.
• radar.cloudflare.com - Cloudflare Radar lists AS210831 under the name TramwajeWarszawskie and country or territory Poland, providing independent public routing visibility for the ASN.
• ipinfo.io - IPinfo's AS210831 page identifies Tramwaje Warszawskie sp. z o.o., tw.waw.pl, Poland, 256 IPv4 addresses, no IPv6 addresses, and the 85.219.213.0/24 netblock.
• commons.wikimedia.org - Wikimedia Commons page describes a horizontal Tramwaje Warszawskie logo sourced from Tramwaje Warszawskie brand materials and provides an original image file for editorial asset review.