Different people been telling me different things. So, here it goes - Can anyone please tell me:

1. If they're open 24/7

2. Where the desk is located exactly, before or after immigration? 

Many thanks.

1. yes

2. cannot be outside ???? If you are out - it is not reentry

 

It was a separate booth at immigration. Better you make the reentry before.

Unless it's moved recently, at Swampy it is after security, before the immigration desks. 

 

At Don Mueang it is after immigration, tell the officer you need a re-entry permit and he will show you.

 

I believe both are 24/7.

Referring to Suvarnabhumi.

 

13 hours ago, Flow said:

2. Where the desk is located exactly, before or after immigration? 

As written it's after check-in and entering the "immigration hall" (after the entrance where your boarding pass and identity from passport are checked).

Of course re-entry desk is before the actual immigration checkpoint/desks.

You have to acquire re-entry permit before you pass the checkpoint.

 

The confusion might result from the fact that the re-entry desk was before the immigration hall and not 24/7 for some time (a year or so).

Outdated information.

 

Thank you :)

On 10/20/2018 at 9:36 PM, Aachen said:

1. yes

2. cannot be outside ???? If you are out - it is not reentry

 

It was a separate booth at immigration. Better you make the reentry before.

Actually if you are flying business class and can use the priority lane then you do indeed pass through immigration and get stamped out the country first.  Then you walk behind all the desks to get to cross back to the re-entry counter to apply.  After that you just walk into the teminal.
 

Strange but true.