Update for Elko County.
I called and talked with Peggy in the assessors office.
To get an address in an area they have already mapped out.
Call with the APN: # and make sure it is mapped and can be addressed.
Purchase lot, call again with the intent to build eventually, to get address.
If on a corner lot make sure you have determined which street your building will face.
For addresses in areas they haven't mapped out.
There are a lot of acres for sale in Elko County with no legal access. (landlocked)
Call with the APN: # and make sure you can get to the property before purchasing.
They cannot give an address for property you cannot drive to.
She did state it is different for each county and sometimes even for different lots, call the appropriate assessors office with the APN: to get rules and restrictions.
I would say for any lot / parcel you are looking at purchasing anywhere in NV call the assessor with the APN: to make sure: 1: you can legally get to it; and 2: construction or other requirements for an address. Some assessors will just ask if you intend to build in the future and give you an address. Some will want a building permit.
All in all somewhat easer than MS, still some work.
Pity NV isn't where KS is, right smack in the middle. ;-)
Additional Info:
State of Nevada Vehicle Registration Fee Estimation
https://dmvapp.nv.gov/dmv/vr/vr_estimate/vrestimationinput.aspx