Thanks in advance

You would be better off asking about particular land border entries.

Also your location along with reason for inquiry.

Meaning border bounce or obtaining visa at nearby Thai consulate.

Your OP header is way too vague..

Land border crossings with Myanmar are either closed or could be closed on short notice.

 

Land border crossings with other neighboring countries (Laos, Cambodia, Malaysia) are open.

To simplify, all crossings to Myanmar that were previously open to foreigners (with the exception of Ranong) were closed at last report.

ALL land borders between Laos, Cambodia and Malaysia with Thailand OPEN
ONLY Ranong is open for Burma for border bounces or if you have a visa,  onward travel only by air

$10 will allow you to stay in kawthaung  for up to 14 days but limited to 20 kms from town

18 hours ago, Caldera said:

Land border crossings with Myanmar are either closed or could be closed on short notice.

 

Land border crossings with other neighboring countries (Laos, Cambodia, Malaysia) are open.

Ranong for border bounce is open

1 hour ago, Sticky Rice Balls said:

Anyone heard anything on mae sai--burma?

Reports that I consider credible have reported that foreigners have been unable to cross for months. As against that, Google reports that it is open, and some recent Google reviews suggest the same. I think it is closed, but contacting someone at the bridge would be necessary to be sure.