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Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.
Calling an 800-number is free of charge. Calling a 400-number incurs a local access charge. 800-numbers are accessible only to land-line subscribers, while 400-numbers are accessible to all land-line and mobile users. 800-toll-free numbers. 800 toll-free numbers are commonly called "800 免费电话".
This article compares computer software tools that are used for accomplishing comparisons of files of various types. The file types addressed by individual file comparison apps varies but may include text, symbols, images, audio, or video.
By Battery’s calculation, the overall investable market opportunity for these categories is about $2.1 trillion, with industrial tech adding $1.3 trillion, and life science tools adding $800 ...
Microsoft Windows is the name of several families of computer software operating systems created by Microsoft. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs).
The following is a comparison of high-definition smartphone displays, containing information about their specific screen technology, resolution, size and pixel density. It is divided into three categories, containing smartphones with 720p, 1080p and 1440p displays.
A RespOrg, or responsible organization, is a company that maintains the registration for individual toll-free telephone numbers In the North American Numbering Plan by means of the distributed Service Management System/800 database.
Proprietary software, Freemium. Website. www .notion .so. Notion is a productivity and note-taking web application developed by Notion Labs, Inc. It is an online and offline organizational tool on operating systems. It is free-to-use, but offers subscriptions.
The following tables compare general and technical information for a number of notable file managers.
In mathematics. 78 as the sum of four distinct nonzero squares. 78 is: the 4th discrete tri-prime; or also termed Sphenic number, and the 4th of the form (2.3.r). [1] an abundant number with an aliquot sum of 33; within an aliquot sequence of nine composite numbers (78, 90, 144, 259, 45, 33, 15, 9, 4, 3, 1 ,0) to the Prime in the 3 -aliquot ...