This is written by one of my colleagues and I don't think it sounds quite right:

please pop by to Room 159.

Shouldn't it be re-written as:

Please pop by at room 159?

Apart from pop by, drop by, drop in and call in may be more common than pop by, right?

How do we put these phrasal verbs in the above sentence?

Can I write: Please drop by/ drop in / call in at room 159?

THANKS