Do Real Estate Agents has access to lockbox without the MLS MLS

[Jordan L.]

If an agent does not have access to the Mls how do they get access to the lockbox? Do they contact the listing agent? Are Real Estate Agents not allowed to show the property because they are not Realtors? Silly question but I am new and want to learn the logistics. it seems if you are not Realtor, you are very limited to what you can do. Please advice. It just seems that you are very restricted to do certain things if you are not a Realtor.