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T-Mobile Polska and travel eSIM in Poland

T-Mobile Polska is one of the networks your eSIM may use in Poland. Here is who actually decides which network you get, and what to do with that.

Author: Porsch Kunnipat Siramanakul · Co-founderReviewed by: Bob Kanokphon ThongdeePublished: October 12, 2026Last updated: October 12, 2026
T-Mobile Polska and travel eSIM in Poland

Quick answer

  • 3 of the 91 Poland plans we sell name T-Mobile Polska as a reachable network, at 5G.
  • T-Mobile Polska runs LTE on B1, B3, B7, B8, B20 and 5G on n1, n28, n78; your phone needs at least one of them.
  • Travel plans connect by roaming, so no plan can promise one specific network.

T-Mobile Polska in brief

T-Mobile Polska switched off 3G in April 2023 and runs 5G on bands n1, n28 and n78.

We are not a reseller for this operator and we have not run our own field speed tests. The band and network details below come from the sources listed at the end of the page.
T-Mobile Polska and travel eSIM in Poland

T-Mobile Polska's bands and technology

ItemT-Mobile Polska
LTE (4G)B1, B3, B7, B8, B20
5G NRn1, n28, n78
5G launchedLive
3GShut down
Network code (MCC-MNC)260-02

Checked against the sources on 2026-10-12. Only the bands a source confirmed are listed; the network may run others too.

An eSIM can only use T-Mobile Polska if your phone supports at least one band in this table. Before you fly, open your model's spec page on the maker's site and compare its LTE and 5G band lists.

T-Mobile Polska's coverage map

T-Mobile Polska publishes its own coverage map. Look up the street or district you will stay in rather than the country as a whole, because coverage in town and out of town differs a great deal. The map shows T-Mobile Polska's own network; a roaming plan may not get every technology it shows.

Who licenses T-Mobile Polska

Mobile networks in Poland are licensed, and their spectrum assigned, by the Office of Electronic Communications (UKE). The bands above are the ones it allocates. A problem with the local network's own service goes to the operator first; a problem with your eSIM plan comes to us.

T-Mobile Polska and travel eSIM in Poland

The plans on our shelf that name T-Mobile Polska

From the supplier record behind each package, 3 of the 91 plans we currently sell for Poland declare T-Mobile Polska as a network the profile can reach, at 5G. The figure comes from the same catalogue that prices the plan pages, and it moves when the supplier revises the record.

A plan naming T-Mobile Polska means the network sits in the list the profile may choose from. It does not mean your handset will stay on it. The priority order is the supplier's, and the signal where you stand decides.

T-Mobile Polska beside the other networks in Poland

NetworkLTE bands5G bands
T-Mobile PolskaB1, B3, B7, B8, B20n1, n28, n78
Orange PolskaB1, B3, B7, B8, B20n1, n78
PlayB1, B3, B7, B8, B20n1, n78
PlusB1, B3, B7, B8, B20, B40Not verified

A band shared across networks is one a single phone can use on all of them.

Why plans do not name a fixed network

Nearly every travel eSIM is a roaming product: the profile picks a network by an order the supplier sets, not by the buyer. If T-Mobile Polska is weak where you are, try selecting Orange Polska or Play or Plus manually in the network settings, and keep data roaming on for the eSIM profile.

FAQ

Will my eSIM definitely connect to T-Mobile Polska?+

3 of our plans name T-Mobile Polska as reachable, but that is not a guarantee. Travel plans run over roaming agreements, so the network depends on the supplier behind the plan, your device and where you are.

Which bands does my phone need for T-Mobile Polska?+

At least one of these, LTE: B1, B3, B7, B8, B20; 5G: n1, n28, n78. Your phone's band list is on the maker's spec page for your model, under "Cellular" or "Network".

Does T-Mobile Polska run 5G, and will my plan get it?+

Yes. T-Mobile Polska has run commercial 5G, on n1, n28, n78. A travel plan only gets it when the plan permits 5G, your phone supports one of those bands, and you are inside 5G coverage. Miss any one and you fall back to 4G.

How do I see which network I am on?+

Check the carrier name at the top of the screen, or open the mobile-network settings and look at the operator list. If signal is poor, try selecting a network manually instead of automatic, but only one your plan actually supports.

Sources

About the author

Porsch Kunnipat Siramanakul

Porsch Kunnipat Siramanakul

  • Co-founder of eSIMonline.asia
  • Digital marketer
  • Performance marketing and marketing planning
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