2G phones (SIM only)?

Cannot get your search to show '2G' posts. Obliged to ask specifically. My old (Nokia/Microsoft OS) Lumia 800 does not operate any higher than 3G, which Lebara has disabled (according to the FAQs). Would your SIMs handle the auto downgrade to 2G adequately? Only want calls and texts (data irrelevant).

2g Will work but eventually it will close.

EE (BT) May 2029 Confirmed to start phased shutdown.

Vodafone 2030 Aiming for 2030 (3G is already off).

Virgin Media O2 Phasing out from 2025 Starting to move traffic away; full shutdown by 2033.

Three N/A Three never had 2g network.

Superuser25 Thank you, very kind of you. Cannot respond properly as my login is completely awry ('dreckly'). Have PM'd Martin but no response yet.

PostEdit: duplicated avatar for clarity