the internet code for Japan is - ".jp".
Information about .jp domains
There are estimated to be about 1,217,476 domains with .jp suffix (2014).
The Intended use for .jp domains is for entities connected with Japan.
Actual use: Very popular in Japan.
The .jp internet code was Introduced in 1986.
The Sponsoring Organisation for .jp domains is "Japan Registry Services Co., Ltd.".
Structure of .jp ccTLD: Registrations permitted at second level and at third level beneath various second-level labels.
Registration restrictions of .jp domain: Second-level registrations require a Japanese mailing address; third-level registrations have varying rules depending on which second-level name they are beneath.
Japan Registry Services Co., Ltd.'s contact details - See link
For .jp domain registration click on the following link - See link
For a whois search on .jp domains click on the following link - See link
You can see more details about the .jp ccTLD in Wikipedia - See link
Internet website in Japan with .jp code (2014)
.jp code is used by 2.00% of all world's websites.
Most popular websites with .jp domain
Internet ipaddress and mailsevers
IP Addresses: 202,582,360.
Number of Internet Users (2014)
Japan makes up 3.74% of the world's Internet users and it ranked on 4 place compared to other countries in the world.
According to data from internetlivestats.com there are 109,252,912 internet users in Japan, which makes up about 86.03% of Japan's population (126,999,808).
Search for .jp domains on google Japan - See link
SOURCES OF INFORMATION
Domain Count Statistics for TLDs - See link