Newcastle Falcons trio Louie Johnson (pictured), Iwan Stephens and Ollie Fletcher all played for England Under-20s on Sunday away to their French counterparts.
Johnson started at fly-half in the 26-22 loss in Perpignan, with winger Stephens and hooker Fletcher both coming off the bench.
The final round of the Under-20s Six Nations left England at third in the standings, having won two of their five games.
Falcons prop-forward Mark Dormer has also featured for England in the competition, recording wins against Scotland and Wales.
Newcastle back-rower Matt Deehan, meanwhile, was part of the Scotland side which ended the campaign at the bottom of the table, having fallen to a heavy defeat away to Ireland on Sunday.
At Under-18s level, Newcastle Falcons had four players involved with England during Sunday's 37-20 home win over Wales in Taunton.
Winger Nathan Greenwood (Gosforth Academy & Whitley Bay Rockcliff RFC) started the game and scored a try.
Another three Falcons players came on from the bench, in the form of scrum-half Ben Douglas (Gosforth Academy & Northern), prop Micky Rewcastle (Gosforth Academy & Blaydon) and second-row Luke Coulston (Gosforth Academy & Penrith).
Newcastle Falcons Under-18 back-rower Ewan Venerus (RGS Newcastle and Novos), has meanwhile been training with the Scotland Under-18s squad as they continue their preparations for next month's Six Nations in France.
Well done to all the players who have been representing their countries, and thank you to the coaches, family members and friends who have supported them along the way.