I'll research this company and its litigation context.
Nextel Communications, Inc. was a U.S. wireless carrier founded in 1987 as FleetCall by Morgan O'Brien and Brian McAuley, and renamed Nextel Communications in 1993. It was headquartered in Reston, Virginia (2001 Edmund Halley Drive) and traded on NASDAQ under "NXTL." At its peak it reported roughly 19,000 employees and about $13.4 billion in revenue, per Wikipedia/DBpedia company data. In 2005 Sprint acquired Nextel in a stock-and-cash transaction valued at roughly $35–70 billion depending on the measure; Nextel became a wholly owned subsidiary of Sprint Corporation (Sprint Nextel), and the Nextel iDEN network was shut down in June 2013.
Operations. Nextel was a facilities-based mobile operator. Its network ran on 800 MHz Specialized Mobile Radio spectrum using Motorola's iDEN technology, and it was best known for push-to-talk "Direct Connect" service, which appealed to business, fleet, and dispatch customers. It served 198 of the top 200 U.S. markets and marketed prepaid service under the Boost Mobile brand. It also licensed the Nextel brand to NII Holdings for Latin American operations.
Litigation posture. The single tracked case shows Nextel as a defendant, not a plaintiff — consistent with an operating company being sued rather than asserting patents. In Freedom Wireless, Inc. v. Boston Communications Group, Inc. et al. (D. Mass., Case No. 00-CV-12234), Nextel was named alongside prepaid-billing vendor BCGI as a co-defendant/customer. Freedom Wireless was a patent-holding entity (reportedly four employees with no operating business) asserting U.S. Patents 5,722,067 and 6,157,823 on prepaid wireless billing. The venue was the District of Massachusetts, not a plaintiff-friendly Texas district.
Context. A jury awarded Freedom Wireless $128 million against BCGI in May 2005, later increased with interest; BCGI settled for $55.3 million in 2006, and Freedom agreed to drop claims against carrier customers including Sprint Nextel and Alltel. The dispute was widely characterized in trade press (Yankee Group, RCR Wireless) as a patent-holding firm's campaign against prepaid-billing vendors and their carrier customers.