Best Allnet Flat 2026

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Last Updated - 27.03.2026

Best Choice

01

Deutsche Telekom

Telekom MagentaMobil Prepaid Annual Plan 156 GB (13GB/Month) | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 100EUR Start Credit

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. Monthly 13 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid annual plan contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

98,99 €
02

T-Mobile

25GB Lycamobile USA T-Mobile USA 30 Days Valid From Power SIM Shop

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Allnet Flat within the USA and EU
25 GB data volume from the Power Sim Shop

33,00 €
03

Deutsche Telekom

Telekom MagentaMobil Prepaid L with 25 GB High-Speed Volume | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 15 EUR Start Credit

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
Ready to go: This prepaid card is activated with a new phone number – ideal for anyone who wants to get started directly and without waiting time. A phone number is not provided with this product.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. 25 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid tariff L contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW: +15GB – You may receive a card in the previous packaging with 25 GB print. Don't worry: The plan has already been upgraded for free and now contains 40 GB of data. The additional data volume will be provided to you when your card is activated.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

13,96 €
Value for Money

04

Deutsche Telekom

Telekom MagentaMobil Prepaid M with 13 GB High-Speed Volume | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 10 EUR Start Credit

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20% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. 13 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid tariff M contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

7,99 € 9,95 €(20% Off off)
05

Lebara

LEBARA Prepaid SIM Card with Hello! 120 Prepaid Tariff without Contract | Allnet Flat Telephony & SMS, 120 GB Data Volume Including 5G and 500 Free Minutes Abroad

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20% Off
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

► No contract binding: The prepaid card without contract commitment grants you maximum flexibility and full cost control.
► MINUTES ABROAD INCLUDED: With 500 free minutes you can easily call family and friends from 50 countries, including Poland, Romania, USA, Croatia or Turkey (landline).
► Important: activation and first use must be done in Germany.
► Get our affordable prepaid SIM card with 120 GB for only €15.99 instead of €19.99 in the first 4 weeks.
► Easy registration: activate the SIM card online via the Lebara registration page and our SIM activation app.
► ALLNET FLAT IN ALL GERMAN NETWORKS: Make calls or SMS with your prepaid SIM card as often as you want.
► 120 GB 5G HIGHSPEED INTERNET: Surf the fast and stable network of Telefonicá with maximum speed and best network coverage thanks to 5G.

12,79 € 15,99 €(20% Off off)
06

Lebara

LEBARA Prepaid SIM Card with Hello! 120 Prepaid Tariff without Contract | Allnet Flat Telephony & SMS, 120 GB Data Volume Including 5G and 500 Free Minutes Abroad

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

► No contract binding: The prepaid card without contract commitment grants you maximum flexibility and full cost control.
► MINUTES ABROAD INCLUDED: With 500 free minutes you can easily call family and friends from 50 countries, including Poland, Romania, USA, Croatia or Turkey (landline).
► Important: activation and first use must be done in Germany.
► Get our affordable prepaid SIM card with 120 GB for only €15.99 instead of €19.99 in the first 4 weeks.
► Easy registration: activate the SIM card online via the Lebara registration page and our SIM activation app.
► ALLNET FLAT IN ALL GERMAN NETWORKS: Make calls or SMS with your prepaid SIM card as often as you want.
► 120 GB 5G HIGHSPEED INTERNET: Surf the fast and stable network of Telefonicá with maximum speed and best network coverage thanks to 5G.

15,99 €
07

Lebara

LEBARA Prepaid SIM Card with Hello! 30 Prepaid Tariff without Contract | Allnet Flat Telephony & SMS, 30 GB Data Volume Including 5G and 100 Free Minutes Abroad

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30% Off
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

► Spring Deal: Get our cheap prepaid SIM card with 30 GB now for only €6.99 instead of €9.99 every 4 weeks.
► No contract binding: The prepaid card without contract commitment grants you maximum flexibility and full cost control.
► MINUTES ABROAD INCLUDED: With 100 free minutes you can easily call family and friends from 50 countries, including Poland, Romania, USA, Croatia or Turkey (landline).
► Important: activation and first use must be done in Germany.
► Easy registration: activate the SIM card online via the Lebara registration page and our SIM activation app
► ALLNET FLAT IN ALL GERMAN NETWORKS: Make calls or SMS with your prepaid SIM card as often as you want.
► 30 GB 5G HIGHSPEED INTERNET: Surf the fast and stable network of Telefonicá with maximum speed and best network coverage thanks to 5G.

6,99 € 9,99 €(30% Off off)
08

Lebara

LEBARA Prepaid SIM Card with Hello! 30 Prepaid Tariff without Contract | Allnet Flat Telephony & SMS, 30 GB Data Volume Including 5G and 100 Free Minutes Abroad

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

► Spring Deal: Get our cheap prepaid SIM card with 30 GB now for only €6.99 instead of €9.99 every 4 weeks.
► No contract binding: The prepaid card without contract commitment grants you maximum flexibility and full cost control.
► MINUTES ABROAD INCLUDED: With 100 free minutes you can easily call family and friends from 50 countries, including Poland, Romania, USA, Croatia or Turkey (landline).
► Important: activation and first use must be done in Germany.
► Easy registration: activate the SIM card online via the Lebara registration page and our SIM activation app
► ALLNET FLAT IN ALL GERMAN NETWORKS: Make calls or SMS with your prepaid SIM card as often as you want.
► 30 GB 5G HIGHSPEED INTERNET: Surf the fast and stable network of Telefonicá with maximum speed and best network coverage thanks to 5G.

9,99 €
09

congstar

congstar Prepaid ALLNET XL – 50 GB in D-Network with 5G (25 Mbps), 16 € Start Credit, Phone & SMS Flat in all German Networks, EU Roaming Included, Every Year 1 GB Mtl. More, without Contract.

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50% Off
8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

ROAM LIKE AT HOME: making calls, texts and Internet access within the EU are included with EU roaming including to Switzerland.
PREPAID WITHOUT CONTRACT TIME: Enjoy your own prepaid plan in the best D-net quality. Your fare options are always valid for 4 weeks or 24 hours from activation of your card. Easy to view via app or online. No minimum runtime. No basic fee. Can be cancelled daily.
Let's go in 3 – 2 – 1: Your delivery includes an inactive congstar prepaid card, your new phone number (information on taking phone numbers can be found under "Important Information") + PUK and activation instructions. Visit the congstar activation page, enter your data there and have an ID document ready for legitimation
For many surfers – Allnet XL: With 16 € starting credit, the first 4 weeks of your term are already clarified. Make calls and SMS in the Allnet Flat in all German networks. Your data volume of 50 GB is on top. Bookable data passes and speed options make your prepaid package even more personal. **
5G data turbo included: for the best possible data transmission, 5G (with max. 25 Mbps) already included in your prepaid plan.
3-in-1 SIM card: mini SIM, micro SIM and nano SIM: your congstar prepaid SIM card contains three formats and fits in any smartphone and device.

4,99 € 9,99 €(50% Off off)
10

Vodafone

Vario L | 100 GB | 11.99 EUR/Mon. | Starting Credit 11.99 EUR | LTE 100 in Vodafone 5G Network | Telephone SMS Flat | EU Roaming | 24 Months Term (Shipped by Email)

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8.0

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Special: Get a whopping 100 GB instead of 5 GB data volume for only 11.99 EUR per month. instead of 19.99 EUR. No connection fee.
PURCHASE PRICE REFUND: If you successfully conclude the contract/positive contract activation, you will automatically receive the EUR 11.99 for the PIN purchase back with the second invoice - transparent and fair.
Easy to register: on the product images we show you how to apply for your plan quickly and easily online – with the PIN code available here. And best of all, the purchase of the PIN code is completely non-binding – no contract for 24 months has been concluded.
EU ROAMING: In the EU foreign countries as well as in the UK, Norway, Iceland and Liechtenstein, you can make calls and simply, thanks to EU roaming, at no additional cost. You can also use your data volume free of charge in the previously listed countries according to your plan.
5G & ALLNET FLAT: Get fast 5G with LTE 100 Mbps in the best Vodafone network for free. And make calls plus simse, as much as you want – in all German networks.

12,99 €