FACT · DE MVNO
About sim.de
Drillisch-owned German MVNO offering cheap 1&1-network Allnet flat plans.
Key facts
Type
MVNO
Headquarters
Maintal, Germany
Founded
2014
Parent
1&1 (United Internet) / Drillisch
Host network
1&1
Cheapest plan
EUR 8.99/month for 40 GB
Mid-tier
EUR 14.99/month for 60 GB+
5G
Yes (on supported tariffs)
Contract
24-month or Flex (monthly)
eSIM
Yes
Sister brands
winSIM, smartmobil.de, PremiumSIM
Official site
sim.de
What is it?
sim.de is a German MVNO operated by Drillisch Online GmbH, part of the 1&1 / United Internet group. The brand runs on the 1&1 4G and 5G network and sells exclusively postpaid Allnet flat plans through online checkout — no shops, no phone support, no SIM bundles.
sim.de is one of several Drillisch sub-brands (alongside winSIM, smartmobil.de, and PremiumSIM) that share the same network access and tariff structure under different branding. The cheapest plan is EUR 8.99/month for 40 GB. Contracts come in 24-month or monthly Flex variants.