The U.S. Census Bureau publishes the official NAICS Manual, and offers a searchable version on its website. You can also download the entire manual in PDF format.
The NAICS Association, a trade organization, provides a database of NAICS codes that can be searched for free.
The North American Industry Classification System (NAICS) is a list that groups similar businesses together and assigns a number to each category. The U.S. government uses these classification codes to organize data collected about various industries.
Some Library databases can be searched by NAICS code, so it may help you to know how businesses in the Hospitality industry are numbered.
The broad category "Accommodation & Food Services" is assigned the number "72," so the types of businesses listed in this category each begin with the digits "72." Then more numerals are added to narrow down the category.
Here is how it looks in the IBISWorld Industry Research database:
You may also see NAICS codes in the EBSCO Discovery Service (EDS) and EBSCOhost databases:
