MRV Communications to Report First Quarter 2007 Financial Results on April 25, 2007

April 23rd, 2007

CHATSWORTH, Calif.--(BUSINESS WIRE)--April 18, 2007--MRV
COMMUNICATIONS, INC. (Nasdaq:MRVC), today announced that it plans to
release the financial results of its first quarter of 2007 on
Wednesday, April 25, 2007 after the close of regular trading.

MRV will host a conference call to discuss its first quarter of
2007 financial results on Wednesday, April 25, 2007 at 4:30 p.m.
Eastern Time (1:30 p.m. Pacific Time). For parties in the United
States and Canada, call 800-257-7063 to access the conference call.
International parties can access the call at 303-262-2138. A financial
presentation designed to guide participants through the call will also
be available. MRV will offer its live audio broadcast of the
conference call, along with the financial presentation, on the MRV
Investor website at http://ir.mrv.com. For replay information, please
visit the MRV Investor website at http://ir.mrv.com.

About MRV Communications, Inc.

MRV Communications, Inc. ("MRV") is a leading provider of network
equipment and services, and optical components. MRV's networking
business provides equipment used by commercial customers, governments
and telecommunications service providers, and includes switches,
routers, physical layer products and out-of-band management products
as well as specialized networking products for aerospace, defense and
other applications including voice and cellular communication. MRV's
optical components business provides optical communications components
for metropolitan, access and Fiber-to-the-Premises applications,
through its wholly-owned subsidiary LuminentOIC, Inc. MRV markets and
sells its products worldwide through a variety of channels, including
a dedicated direct sales force, manufacturers' representatives,
value-added-resellers, distributors and systems integrators. MRV also
has operations in Europe that provide network system design,
integration and distribution services that include products
manufactured by third-party vendors, as well as internally developed
and manufactured products. Publicly traded since 1992, MRV is listed
on the NASDAQ Global Market under the symbol MRVC. For more
information about MRV and its products, please call (818) 773-0900 or
visit our websites at www.mrv.com and www.luminentoic.com.

MRV Communications, Inc.
818-886-MRVC (6782)
(Investor Relations)
ir@mrv.com

The Blueshirt Group for MRV
Chris Danne, 415-217-7722
chris@blueshirtgroup.com
Rakesh Mehta, 415-217-7722
rakesh@blueshirtgroup.com