www.netsol.comでwhoisしてみた。expireって、満了とかそういう意味だが。。。
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1r Network
SAIKI 1524-203
TSUKUBA-CITY, IBARAGI 3050028
JP

Domain Name: 1R.NET

Administrative Contact:
1R.NET hostmaster@1R.NET
1R.NET
SAIKI 1524-203
TSUKUBA-CITY, IBARAGI 305
JP
Phone- 000000000
Fax-
Technical Contact:
1R.NET hostmaster@1R.NET
1R.NET
SAIKI 1524-203
TSUKUBA-CITY, IBARAGI 305
JP
Phone- 000000000
Fax-

Record updated on 2001-02-21 00:00:00.
Record created on 1998-03-02.
Record expires on 2002-03-01.
Database last updated on 2002-02-04 03:55:12 EST.

Domain servers in listed order:

NS.JIYU.NET 202.226.152.59
NS2.JIYU.NET 202.226.152.62
The previous information has been obtained either directly from the
registrant or a registrar of the domain name other than Network Solutions.
Network Solutions, therefore, does not guarantee its accuracy or
completeness.