Possible coral fossil?

[LiamL]

I’m on a fossil hunting trip and have arrived at my wondeful cottage in the north yorkshire country side. Today has been my travel day to the location so no fossil hunting sites have been visited. But my cottage has lots of different stones outside similar to this, probably brought from elsewhere.

is it a coral?

[Tidgy's Dad]

Don't think so, some of those holes look pretty deep and without coral structure. 

Are the holes on all sides?

And a close up of the holes would be useful.

Please have a smashing holiday. 

Edit : Just enlarged your photo and seen more of the detail and am now less certain. 

Would like to see the other side, though. 

 

[abyssunder]

It looks to be a bioeroded rock, to me, with something in the line of Entobia.

 

picture from here