The old Standard Industrial Classification Codes (SIC) were last updated 1987 and are no longer used by the Census Bureau.
Example: Radio telephone communications were classified by SIC code 4812
The newer North American Industrial Classification Codes (2012) will be updated again in 2017. The NAICS system strives for compatibility with the two-digit level of the International Standard Industrial Classification of All Economic Activities (ISIC
Rev. 4) of the United Nations.
The 2012 NAICS accommodated more modern technologies including the Internet-related businesses.
Example: If you use the above link and search the term, VoIP, you get the following search results:
517110 VoIP service providers, using own operated wired telecommunications infrastructure
517919 VoIP service providers, using client-supplied telecommunications connections
Search other terms in NAICS to acquire the classification numbers for other parts of the telecommunications industry. Then use the numbers you find in the business subscription databases below to acquire information on companies who choose these numbers as their “primary NAICS” business or “secondary NAICS” business activities.
North American Industrial Product Lists
Scroll down to 517 industry area to see telecom products lists and the definitions to better understand how telecommunication products and services are classified by this system. There are other related industries on this list which may also be of interest.
For further information on industry classification codes please see our Guide to Industry Research.
Last updated: 12/05/2015