NetZero
NetZero is a United States internet service provider known for advertising-supported free dial-up access and later wireless broadband services.
Last updated August 31, 2026
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Overview
NetZero is an American internet service provider headquartered in Woodland Hills, Los Angeles. The brand emerged during the late-1990s expansion of consumer internet access, when many households were moving online through dial-up modems and advertisers were seeking new ways to reach users. NetZero’s central proposition was to provide internet access at no charge in exchange for displaying advertising to subscribers. This model made the service unusually accessible to consumers who did not want to pay a conventional monthly ISP fee, while giving the company a large audience that could be segmented and marketed according to browsing behavior. The company was launched in October 1998 by Ronald T. Burr, Stacy Haitsuka, Marwan Zebian, and Harold MacKenzie. Around the same period, NetZero acquired FreeInet, an early provider of free nationwide internet service. The company expanded rapidly and reported reaching one million users within its first six months. Its growth was supported by venture investment and distribution arrangements, including a deal with Compaq that placed NetZero among the internet services presented during the computer maker’s out-of-box setup experience. NetZero also developed an advertising system that targeted messages to web addresses and user activity in real time, a technical and commercial approach associated with U.S. Patent 6,366,298. NetZero became a public company on the NASDAQ exchange in September 1999 under the symbol NZRO. Mark Goldston became chief executive officer, Charles Hilliard became chief financial officer, and Burr served as president and chief technology officer. The company’s rapid rise coincided with the dot-com boom, and its free-access model attracted numerous imitators. NetZero responded with patent litigation against some competing advertising-supported ISPs. Following the technology-sector downturn, it acquired or absorbed assets associated with several competitors and related services, including AimTV, Simpli, and RocketCash. The original free-access model evolved as operating costs and user demand increased. Beginning in January 2001, NetZero limited free access to 40 hours per month and directed heavier users to a paid Platinum service. The free allowance was later reduced to 10 hours per month. NetZero subsequently merged with rival Juno Online Services, creating United Online. The NetZero and Juno brands continued under that holding company, which also owned BlueLight Internet Services. United Online was later acquired by B. Riley Financial in July 2016. NetZero broadened its technical offering beyond basic dial-up. In 2005 it introduced a revised client application and launched NetZero 3G, a dial-up optimization service that used techniques such as prefetching, compression of selected web content, and caching to make browsing feel more responsive without changing the underlying modem connection speed. The company also introduced NetZero DSL. Its software historically supported Windows and several Apple operating-system versions, and it previously offered a Linux dialer, although the Linux software later ceased to function reliably with the service. In 2012 NetZero added mobile broadband and home wireless broadband products using network capacity associated first with Clearwire and later with Sprint’s 3G network. In 2013 it introduced NetZero DataShield, a virtual private network service intended to encrypt and protect traffic on Wi-Fi connections, including public hotspots. The brand has therefore moved from its original identity as a free dial-up provider toward a broader collection of internet-access, mobile-data, hotspot, and online-security services, while remaining historically associated with the advertising-supported access model that helped define the early consumer ISP market.
History
NetZero was founded in the United States during the first major wave of mass-market internet adoption. Its founders—Ronald T. Burr, Stacy Haitsuka, Marwan Zebian, and Harold MacKenzie—launched the service in October 1998. The company also acquired FreeInet, an early free nationwide ISP, as it built a national footprint. NetZero’s commercial logic was straightforward but novel for the period: users received internet access without a conventional subscription fee, while the company monetized the audience through advertising displayed during the online session. The business grew quickly, reaching a reported one million users within six months. NetZero developed targeted advertising based on users’ browsing patterns and obtained a U.S. patent covering monitoring of individual internet usage. A distribution agreement with Compaq helped expose the service to new computer owners during the initial setup of their machines. These arrangements gave NetZero a substantial advantage at a time when consumers were choosing among emerging dial-up providers. NetZero went public on NASDAQ in September 1999 under the symbol NZRO. Mark Goldston became chief executive officer, Charles Hilliard became chief financial officer, and founder Ronald Burr became president and chief technology officer. The free-ISP format quickly spread across the market. Competitors including Juno, Spinway, Freei, and BlueLight promoted similar advertising-funded access models. NetZero pursued patent claims against some rivals over banner-ad technology, making intellectual property part of the competitive struggle surrounding free internet access. The dot-com downturn changed the economics of the sector. As competing providers failed or retrenched, NetZero acquired competitors and related businesses, including AimTV, Simpli, and RocketCash. It also modified its own pricing model. In January 2001, access above 40 hours per month became chargeable, with a paid Platinum option offering unlimited access. The free allowance was subsequently reduced to 10 hours per month. This shift reflected the difficulty of supporting very high usage solely through advertising revenue. NetZero later merged with Juno Online Services. The combination created United Online, a holding company whose portfolio also included BlueLight Internet Services. The NetZero brand continued to provide dial-up access while adding services intended to improve the experience of low-bandwidth connections. In 2005 the company introduced a new client and launched NetZero 3G. Despite its name, the service did not increase the physical transmission limit of dial-up modems; instead, it used prefetching, selected compression, and browser caching to reduce perceived waiting time. NetZero DSL followed as the company pursued broadband customers. The brand maintained dial-up operations into the 2010s, when the company reported approximately 750,000 dial-up subscribers. It also expanded into wireless connectivity. In 2012 NetZero launched mobile broadband using Clearwire infrastructure and later extended service through Sprint’s 3G network. A home wireless broadband product and hotspot offering broadened its scope beyond fixed telephone-line access. In 2013 NetZero introduced DataShield, a VPN product intended to encrypt traffic over Wi-Fi networks. United Online was acquired by B. Riley Financial in July 2016. NetZero consequently became part of the B. Riley corporate group through United Online, alongside the Juno brand. Its historical importance lies in demonstrating how free, advertising-supported access could accelerate consumer adoption of the internet, while its later history illustrates the transition from dial-up to DSL, mobile broadband, wireless access, and online privacy tools.
- 2016
United Online is acquired by B. Riley Financial
[1]The transaction placed NetZero under B. Riley Financial through United Online.
- 2013
DataShield launches
[1]NetZero introduced a VPN service for protecting data on Wi-Fi connections.
- 2012
Wireless broadband expansion
[1]NetZero launched mobile broadband and home wireless broadband services.
- 2005
NetZero 3G launches
[1]NetZero introduced a dial-up optimization service based on prefetching, compression, and caching.
- 2001
Introduction of usage-based limits
[1]The company began charging for access above 40 hours per month and introduced the paid Platinum service.
- 1999
NASDAQ listing
[1]NetZero became publicly traded on NASDAQ under the symbol NZRO.
- 1998
NetZero is founded and launched
[1]NetZero launched in October 1998, combining free internet access with advertising-supported monetization.
- 1998
Acquisition of FreeInet
[1]NetZero acquired FreeInet, an early provider of free nationwide internet access.
Products and positioning
Affordable and accessible consumer internet connectivity, historically differentiated by advertising-supported free access and later extended into broadband, mobile data, hotspot, and Wi-Fi security services.
Dial-up internet access · 1998
NetZero Free Internet
NetZero’s original flagship service provided dial-up internet access without a conventional subscription charge. The model was financed through advertising displayed to users and became the defining feature of the brand during the late-1990s internet boom. Access terms were later limited by monthly usage allowances.
Paid dial-up internet access · 2001
NetZero Platinum
Platinum was the paid upgrade for users who exceeded the free service’s monthly allowance. It provided unlimited access at a time when NetZero was shifting from a purely advertising-funded model toward a combination of advertising and subscription revenue.
Dial-up optimization · 2005
NetZero 3G
NetZero 3G was a software-based performance service for dial-up users. It used prefetching, caching, and compression of selected web elements to make ordinary browsing feel faster. It did not raise the modem’s physical connection speed and was primarily an optimization layer over conventional dial-up access.
DSL broadband · 2005
NetZero DSL
NetZero DSL extended the brand into fixed broadband as consumers increasingly moved away from telephone-line dial-up. It represented the company’s effort to retain customers as higher-speed access became the market norm.
Mobile broadband · 2012
NetZero Mobile Broadband
Launched in 2012, NetZero Mobile Broadband offered wireless data connectivity through partner network infrastructure. The service initially used the Clearwire network and later expanded through Sprint’s 3G network.
Virtual private network · 2013
NetZero DataShield
DataShield was a personal VPN product introduced in 2013. It was designed to encrypt and protect users’ internet traffic when they connected through Wi-Fi, including public hotspots, broadening NetZero’s offering into consumer internet security.
Marketing campaigns
- 2000NetZero @ the Half
United States
NetZero sponsored the NetZero @ the Half segment associated with the NBA on NBC halftime show. The placement gave the internet brand prominent national exposure during the early-2000s growth of consumer online services.
Outcome. The sponsorship became one of NetZero’s most visible mainstream advertising placements.
Brand decisions
2016
Change of ownership through United OnlineM&ABackground
NetZero operated as a brand within United Online, alongside Juno and other internet services.
Action taken
B. Riley Financial acquired United Online, thereby acquiring the corporate group that owned NetZero.
Aftermath
NetZero became part of the B. Riley Financial group through United Online.
2013
Launch of NetZero DataShieldProduct launchBackground
Public Wi-Fi use created growing consumer concern about the security of unencrypted connections.
Action taken
NetZero introduced a personal VPN intended to encrypt traffic over Wi-Fi networks.
Aftermath
NetZero extended its service portfolio from access provision into consumer privacy and security.
2012
Expansion into wireless broadbandStrategyBackground
Consumer connectivity was shifting from fixed dial-up toward broadband and mobile access.
Action taken
NetZero launched mobile broadband, home wireless broadband, and related hotspot services using partner network capacity.
Aftermath
The move diversified the brand beyond its legacy dial-up identity.
2005
Launch of NetZero 3GProduct launchBackground
Dial-up remained constrained by modem technology while users increasingly expected faster web browsing.
Action taken
NetZero introduced software that used prefetching, caching, and selected content compression to improve perceived browsing performance.
Aftermath
The product offered an interim usability improvement while the company also pursued DSL broadband.
2001
NetZero introduces charges above the free-use allowancePrice changeBackground
The original advertising-supported model faced the cost of supporting heavy users and an increasingly competitive free-ISP market.
Action taken
NetZero began charging for access beyond 40 hours per month and directed higher-use customers to the paid Platinum service. The free allowance was later reduced to 10 hours per month.
Aftermath
The change moved the business toward a hybrid advertising-and-subscription model.
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