I bought a Lyca mobile SIM in Germany last year, no photo ID. I got a Meteor SIM here in Ireland, also no ID required.
My current operator is Virgin, and that didn't require ID etiher, although since I already had a home internet account with them, that may have been why (no idea if new customers need ID). I did not need ID to setup the original home broadband account though. They obviously have my address and billing details, but they never had any proof that I'm who I saw I am. My previous phone provider was Three Ireland and they didn't require any ID either.
All of these except my Virgin SIM are/were prepaid. It seems that prepaids don't always require ID (and having postpaid/bill phones require ID does make sense).
My current operator is Virgin, and that didn't require ID etiher, although since I already had a home internet account with them, that may have been why (no idea if new customers need ID). I did not need ID to setup the original home broadband account though. They obviously have my address and billing details, but they never had any proof that I'm who I saw I am. My previous phone provider was Three Ireland and they didn't require any ID either.
All of these except my Virgin SIM are/were prepaid. It seems that prepaids don't always require ID (and having postpaid/bill phones require ID does make sense).