Get the latest news alerts: at Twitter.

A roundup of the latest tech earnings news from The Associated Press and Local Tech Wire:

• Dex One reports 22% drop in revenue

CARY, N.C. – The recession continues to take a big toll on yellow pages and online advertising firm Dex One (NYSE: DEXO).

The company reported Thursday that its first quarter net revenue fell 22 percent from a year ago to $469 million.

Earnings before income taxes, depreciation and amortization fell to $231 million, down 28 percent.

For the financial release,

“Recent sales campaigns are generating sequential improvements in ad sales trends, which we expect to continue throughout the remainder of 2010,” said David Swanson, chairman and chief executive officer at Dex One. “Another important sign that things are beginning to improve is the significant drop in bad debt during the quarter, extending a trend that began late last summer. Not only does this benefit cash flow, but it also means more of our existing customers will be available for renewal in upcoming sales campaigns.”

• Aviat Networks revenue plunges

RESEARCH TRIANGLE PARK, N.C. – Aviat Networks (Nasdaq: AVNW) reported a $38 million drop in revenue to $120 million for the first quarter compared to the same time frame in 2009.

The company did trim its losses to $25.7 million from $39.4 million from a year earlier.

For the financial report,

• Alcatel-Lucent reports $665M quarterly loss

PARIS — Shares in Alcatel-Lucent SA (NYSE: ALU) plunged on Wednesday after the telecommunications equipment maker reported a bigger than expected euro515 million ($665 million) net loss for the first quarter.

The loss was 28 percent wider than the euro402 million loss booked in the same period last year. Revenue fell 9.8 percent to euro3.24 billion.

Investors were spooked and sent shares 11.15 percent lower to euro2.01 in Paris morning trading.

The Paris-based company said a components shortage held back sales, which Chief Executive Ben Verwaayen told reporters is an "industrywide issue."

He said telecoms equipment makers are competing with automakers and consumer electronics firms for some of the more basic parts.

"We were not able to fully satisfy customer demand for our products due to tightening components availability," Verwaayen said.