What tier am I in? Map shows new zones after London plunged into Tier 4

mirror.co.uk:

Millions of people in England will be plunged into strict new Tier Four restrictions from midnight tonight. Under the new rules, Christmas bubbles have been cancelled and non-essential shops will be forced to close.

Tier 4 residents will be subject to a stay at home order, and must not stay overnight anywhere other than their own home. People living in Tier 1, 2 and 3, had been allowed to take advantage of a relaxation of the rules with Christmas 'bubbles' but the Prime Minister has this afternoon cut that down to just one day - December 25.

The Prime Minister said the Government was following scientific advice over changes to coronavirus restrictions. Asked at the Downing Street press conference if it was "reckless to promise five days of