On March 24, 1994, the two sponsors announced the formation of Globalstar LP, a limited partnership established in the U.S., with financial participation from eight other companies, including Alcatel, AirTouch, Deutsche Aerospace, Hyundai, and Vodafone.

[2] Globalstar received its US spectrum allocation from the FCC in January 1995, and continued to negotiate with other nations for rights to use the same radio frequencies in their countries.

In December 1999, the system began limited commercial service for 200 users with the full 48 satellites (no spares in orbit).

In February 2000, it began full commercial service with its 48 satellites and 4 spares in North America, Europe, and Brazil.

Following the September 11 attacks in 2001, Irwin Jacobs had his private jet re-classified as an experimental aircraft for the purpose of developing an aviation application of Globalstar.

Ground monitoring of aircraft location, heading, speed, and mechanical parameters such as oil pressure and engine RPM were demonstrated.

To work around Globalstar's low data rate, the experimental system used multiple user terminals (UTs) in parallel.

The first stage of the restructuring was completed on December 5, 2003, when Thermo Capital Partners LLC was deemed to obtain operational control of the business, as well as certain ownership rights and risks.

Between 2010 and 2011, Globalstar moved its headquarters from Silicon Valley to Covington, Louisiana in part to take advantage of the state's tax breaks and low cost of living.

On September 7, 2022, Apple announced a cooperation with Globalstar Inc that "would allow iPhone 14 users to send emergency messages" via satellite, starting in the U.S. and Canada.

Globalstar's terrestrial spectrum, Band 53 and its 5G variant n53 offers carriers, cable companies and system integrators a versatile, fully licensed channel for private networks, while Globalstar's XCOMP technology offers capacity gains in dense wireless deployments.

Global customer segments include oil and gas, government, mining, forestry, commercial fishing, utilities, military, transportation, heavy construction, emergency preparedness, and business continuity as well as individual recreational users.

SPOT X, a two-way satellite messenger with GPS location tracking, navigational capabilities, social media linking and direct communication options to emergency services, was launched in 2018.

[13] Globalstar Gateways are the largest cellular base station in the world with a design capacity for over 10,000 concurrent phone calls over a coverage area that is roughly 50% of the size of the US.

Globalstar supports CDMA technology such as the rake receiver and soft handoffs, so a handset may be talking via two spot beams to two Gateways for path diversity.

The use of gateway ground stations provides customers with localized regional phone numbers for their satellite handsets.

As of May 2012, voice and full-duplex data services are currently non-functional over much of Africa, the South Asian subcontinent, and most mid-ocean regions due to the lack of nearby gateway earth stations.

[17] According to documents filed with the SEC on January 30, 2007, Globalstar's previously identified problems with its S-band amplifiers used on its satellites for two-way communications are occurring at a higher rate than expected, possibly eventually leading to reduced levels of two-way voice and duplex data service in 2008.

[18]Industry analysts speculate the problem is caused by radiation exposure the satellites receive when they pass through the South Atlantic Anomaly in their 876-mile (1414 km) altitude orbits.

[18]The Company is working on plans, including new products and services and pricing programs, and exploring the feasibility of accelerating procurement and launch of its second-generation satellite constellation, to attempt to reduce the effects of this problem upon its customers and operations.

[20] In August 2008, Thales Alenia Space began production assembly, integration, and testing of the second-generation flight model satellites, in its Rome factory, for launch as early as Q3 2009.

[29] In February 2022, it was announced that Globalstar purchased 17 new satellites to continue its constellation built by MDA and Rocket Lab for $327 million.

The stock price peaked at (post-split) $50 per share in January 2000, but institutional investors began predicting bankruptcy as early as June 2000.

The SPOT Messenger is manufactured by Globalstar partner Axonn LLC and combines the company's simplex data technology with a Nemerix GPS chipset.

Globalstar provides the infrastructure for the Emergency SOS via satellite functionality[32] announced in 2022 for all versions of the iPhone 14[33] series and newer.

[34] In February 2023, Globalstar announced it would be repaying a $150 million debt under a 2019 agreement to EchoStar, which could have prevented the Apple partnership.