* Nextel Communications, the smallest of six nationwide U.S. wireless carriers, outspent bigger competitors on government lobbying in the first half of this year, when it was working to win access to airwaves valued at $4.86 billion. The Reston company spent $1.92 million, compared with $240,000 during the same period a year earlier, according to a report filed with Congress. Verizon Wireless, the biggest carrier, spent $1.3 million, partly in an attempt to derail Nextel's plan, which won approval from the Federal Communications Commission. The filings were provided to Bloomberg News by the companies.

* Corvis of Columbia said it closed on its deal to buy Focal Communications of Chicago, a provider of local phone service. The deal, which was announced in March and is valued at $210 million in equity and assumption of debt, closed at $189 million. In addition to Focal, Corvis owns Broadwing Communications, a company that sells mostly long-distance Internet and voice capacity to other carriers. Focal has 4,000 enterprise and wholesale customers.

* PEC Solutions of Fairfax won a contract valued at up to $14.1 million over five years from the Executive Office for Immigration Review to provide project management services and information technology support for its eWorld project. The immigration review office, an agency of the Department of Justice, adjudicates immigration cases, including those involving detainees, criminal aliens and those seeking asylum. The eWorld system is aimed at providing a streamlined system for processing appeals of orders from immigration judges.