20 GB
Verified Top Picksim24 lists its Allnet Flat 20 GB tariff at €6.99 a month instead of €19.99, with 5G data at up to 50 MBit/s, flat calls and SMS, and EU roaming included. The site marks the offer as running only until 09.10. at 11:00 and states a saving of €312 on the 24 month term.
Expires: Oct 09, 2026
40 GB
VerifiedThe Power-Surf tariff Allnet Flat 20 + 20 GB gives 40 GB instead of 20 GB of 5G data for €8.99 a month instead of €19.99. sim24 shows it as available only until 09.10. at 11:00 and states €264 saved over the 24 month term.
Expires: Oct 09, 2026
SAVE
VerifiedOn the 24 month term sim24 charges a setup fee of €0 instead of €19.99 on its Allnet Flat tariffs. The same tariffs can be ordered on a 1 month term with a setup fee of €9.99 instead of €19.99. Number porting is free and the eSIM is activated in 3 minutes.
Limited Time Offer
60 GB
VerifiedThe Allnet Flat 60 GB is priced at €12.99 a month instead of €34.99 and is labelled as a short time offer, with €528 saved over 24 months. The Allnet Flat 50 + 30 GB with 80 GB instead of 50 GB costs €16.99 a month instead of €29.99.
Limited Time Offer
Unlimited
VerifiedThe Unlimited on demand tariff costs €19.99 a month instead of €49.99. It includes 40 GB, and further high speed volume can be added free of charge in 1 GB steps by click. sim24 states a saving of €720 over the 24 month term.
Limited Time Offer
DEAL
VerifiedThe DSL 100 MBit/s Telefonie Plus tariff is listed at €29.99 a month instead of €36.99 until 14.10. at 11:00, with €168 saved and a €49.99 setup fee. DSL 16 MBit/s Telefonie Plus starts from €22.99 a month, and a WLAN modem is optional from €4.99 a month.
Expires: Oct 14, 2026
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Extra codes from partner brands, refreshed alongside this store's offers.
A practical savings guide for shoppers using Sim24 DE offers.
sim24 does not publish a coupon code on its site. The discounts are built into the monthly tariff prices, shown next to the regular price.
On 24 month terms the setup fee is €0 instead of €19.99, and €9.99 on the 1 month term. DSL 100 MBit/s Telefonie Plus costs €29.99 a month instead of €36.99 until 14.10. at 11:00, and DSL 16 MBit/s starts from €22.99 a month.
Social Proof
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