Der.net
- 49 municipalities
- fibre
- based in Łask
- operator since 2017
Updated: October 2026
Der.net is a fibre provider based in Łask, registered as a telecom operator in 2017. It operates in 49 municipalities in łódzkie voivodeship, including Sieradz and Zduńska Wola. Whether Der.net reaches your building is confirmed by the company itself.
Personal data processing, including address, is used solely to check service availability and match offers.
We do not compare Der.net offers. After you enter your address we will show Netia, Orange, Play, Plus and T-Mobile offers available in your building.
Where Der.net operates
Municipalities where Der.net sells internet, based on public registers.
Cities
Municipalities by county
sieradzki county · 10 municipalities
wieluński county · 9 municipalities
- Biała
- Czarnożyły
- Konopnica
- Mokrsko
- Osjaków
- Ostrówek
- Skomlin
- Wieluń
- Wierzchlas
pajęczański county · 8 municipalities
- Działoszyn
- Kiełczygłów
- Nowa Brzeźnica
- Pajęczno
- Rząśnia
- Siemkowice
- Strzelce Wielkie
- Sulmierzyce
łaski county · 5 municipalities
- Buczek
- Łask: Łask, Orchów, Wiewiórczyn, Ostrów-Osiedle, Wola Łaska, Ostrów
- Sędziejowice
- Widawa
- Wodzierady
zduńskowolski county · 4 municipalities
- Szadek
- Zapolice
- Zduńska Wola (town)
- Zduńska Wola
In rural municipalities we also list localities where the company had its own network in 2021.
Technologies and company details
- Registered name
- DER.NET SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
- Technologies
- fibre
- Registered office
- Łask, łódzkie
- Registered since
- 2017
- Tax ID (NIP)
- 8311635420
- Telecom operator register number
- 12144
- Website
- www.der.net.pl
Other providers in these municipalities
74 other providers operate in these municipalities, including Netia, Orange, Play, Plus and T-Mobile, whose offers we compare. Full lists and offer comparisons are on the locality pages.
Check your address
We will show offers from the operators we compare that are available in your building, with the cost of the whole contract.
Check addressBased on public registers of the Ministry of Digital Affairs and UKE, updated: October 2026.