Sim DE Promo Codes for September 2026
Explore the latest Sim DE Gutscheins, current deals, and savings on Allnet Flat Tarife, LTE Tarife, 5G Mobilfunktarife. We regularly review available offers, remove expired promotions, and keep this page updated for September 2026.
Sim DE offers 0 coupon codes and 17 deals as of September 2026. Today's top offer: Xiaomi mit Vertrag: $19.99 Activation Fee Waived. Codes are verified and updated daily.
🔥 Top Sim DE Discount Codes for September 20, 2026
New contracts with Xiaomi phones come with a waived activation fee. This applies to various Xiaomi device bundles.
Add an SMS Flatrate to your existing plan at a reduced monthly cost. Prices start from $2.99 for unlimited texts.
Sign up for a Google Pixel phone with a plan and get a discount on the activation fee. This reduces your initial outlay.
Selected LTE plans feature a permanent monthly price reduction. Customers can save $2-$5 per month on their bill.
Get an eSIM plan with the activation fee entirely removed. This applies to eligible eSIM services.
Find flexible monthly cancellable plans starting at a reduced monthly rate. Prices begin at $9.99 for basic services.
Get a discount on initial Roaming Option bundles. This applies to packages for travel outside the home network.
Add a fixed-line number to your mobile plan without paying the activation fee. This includes the initial setup cost.
New sign-ups for SIM-only plans qualify for a waived activation fee. This offer applies to various flexible SIM-only options.
Select phone contracts bundled with a smartphone include a waived activation fee. This applies to various smartphone models.
Port your existing number to a new plan and receive a monthly discount. This bonus can save you $2-$5 per month.
Receive a 50% discount on your first purchase of additional data volume. This helps with temporary data needs.
Get a Samsung Galaxy smartphone with a contract plan and receive a free setup. This waives the initial activation charge.
Activate any 5G mobile plan without paying the usual setup fee. This offer applies to new 5G subscriptions.
New subscriptions for Kids' plans receive a 25% discount for the first three months. This applies to eligible child accounts.
Add a MultiCard to your existing plan with a reduced setup cost. This offer lowers the initial fee for additional cards.
Sign up for specific data-only plans and avoid the activation fee. This deal is valid for new data tariff subscriptions.
Customer Reviews
Decent service, quick activation
I switched to sim.de for a SIM-only Tarif last month. Porting my old number over went smoothly, which was a relief. I got the monthly cancellable option and it's been pretty good value for what I pay. My only small issue is their customer service response time; I had a question about my data usage and it took them a couple of days to get back to me. Otherwise, the service works fine.
Good deal, long wait
I ordered an Allnet Flat Tarif from sim.de, specifically the one with 5G. The sign-up process online was really straightforward, which I appreciated. I also saved on the activation fee, which was nice. However, it took about 7 business days for the SIM card to actually arrive after I signed up, which felt a bit long. Once it got here though, activation was pretty quick. The network coverage has been solid in my area, no complaints there.
Sim DE Community Discussion
Share tips, ask questions & help fellow shoppers save more
Anyone know if sim.de usually has good Black Friday deals? Thinking of getting a new plan but could wait a bit if it's worth it.
hey, trying to switch to sim.de, how long does it usually take for them to activate the SIM card after ordering?
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