An-12 UR-CIC has been regularly commented on in the "Interesting aircraft seen today" thread for the past year or so over in Spectators Balcony
Interesting aircraft - what have you seen on your computer today? - Page 74 - PPRuNe Forums
Last in the UK a week ago, operating out of Birmingham to the continent - An12s seem to do this route most days. principally car parts, the air freight business of which has expanded considerably since the difficulties at docks. Along with the smaller Antonov 24 turboprop they route audibly over London multiple times a day at present, linking a wide range of oddball destinations. Several times a month the An12s actually cross the Atlantic. Most of them have not actually been to Ukraine this year.
This particular aircraft has long been notable, even when at 20,000 feet in the cruise, for being more audible from the ground than the others.