edu	educational
com	commercial
mil	military
net	network
org	organization (non-profit)
government	gov

Other types of domains are the area names, mostly for countries other than the United States. For example:

ca	Canada
pr	Puerto Rico
th	Thailand
mx	Mexico

You will also find some U.S. addresses with an "area code."
For example:   tx.us.

The following new domains are going to be incorporated into the Internet addresses:

firm	businesses or firms
store	businesses offering goods to purchase
web	for entities emphasizing activities related to the World Wide Web
arts	for entities emphasizing cultural and entertainment activities
info	for entities providing information services
nom	for those wishing individual or personal nomenclature

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