- Marblemount is a census-designated place in Skagit County, Washington, United States. The population was 286 at the 2020 census. It is included in the Mount Vernon–Anacortes, Washington Metropolitan Statistical Area.
- Illegal number (Wikipedia)
An illegal number is a number that represents information which is illegal to possess, utter, propagate, or otherwise transmit in some legal jurisdiction. Any piece of digital information is representable as a number; consequently, if communicating a specific set of information is illegal in some way, then the number may be illegal as well.