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The Wall Street Journal described it as "inspired by the business model of Google". [8] From 2005 through the early 2010, Jingle Networks guessed they saved consumers $1 billion [5] based on an inflated rate of $2 a call for directory assistance. In April 2011, Marchex bought Jingle Networks for $62.5M in combination of cash and stock.
The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the United States while supplementing nationwide coverage through roaming agreements with other carriers.
According to Hotspot Setup, "the two largest providers of free mobile phones are Safelink Wireless and Assurance Wireless, which are available in more states than other providers." [ 6 ] Assurance Wireless users may bring their own unlocked device – they are not required to use an Assurance issued wireless phone. [ 7 ]
Spy Dialer is a free reverse phone lookup service that accesses public databases of registered phone numbers to help users find information on cell phone and landline numbers and emails.
Toll-free directory assistance was provided by telecommunication providers, namely AT&T and Verizon, as mandated by the Federal Communications Commission. Companies requested to have their toll-free number listed, and paid the providers each time their phone number was released to a toll-free directory-assistance caller.
In general, the types of phones and other devices supported by the MVNOs are in line with the technologies used by the Mobile Network Operator (MNO), the underlying cellular network provider. All major and regional MNOs use 4G LTE / LTE Advanced and 5G NR protocols (2G and 3G having been deprecated and shut down), with GSM technologies.
Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...
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