Regensburg  Suggested by donshottype 
Straight Block  Suggested by donshottype 
Kings Of Kings Lynn  Suggested by Angelica90s 

Font name?

not sure what the actual font is here's an similar font

Are these numbers for a sports team? team numbers are usually custom rather than part of a retail font.
Regensburg, like your numbers, is a geometric construction based on a rectangle and angular strokes, but has many differences in design of the numbers.

Straight Block, published in 2013.



Edited, including to rotate horizontal mid strokes to an almost horizontal diagonal.

The alphabet for Straight Block is cloned with minor changes from Rodchenko Condensed by Paratype.
No legitimate download of Straight Block.

Straight Block is used by a soccer uniform letters supply company:
https://uniformsandink.com/product/straight-block-soccer-font-start-up-kit-520-pcs/