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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.
Codes 880 through 882 were used (until 1 April 2004) to allow international customers to access toll-free numbers they otherwise could not by paying the international portion of the toll. 880 was paired with 800, 881 with 888, and 882 with 877. [21] 888: toll-free telephone service: March 1, 1996: created; 889: not in use; available for toll ...
Optum serves employers, government agencies, health plans, life science companies, care providers and individuals and families offering products in data and analytics, pharmacy care services, health care operations and delivery, population health management and advisory services. [7]
Suddenlink was an American telecommunications subsidiary of Altice USA trading in cable television, broadband, IP telephony, home security, and advertising.Prior to its acquisition by Altice, the company was the seventh largest cable operator with 1.5 million residential and 90,000 business subscribers.
Optimum is an American telecommunications brand owned and operated by Altice USA. [1] It is the fourth largest cable provider in the United States and a Fortune 500 company. Optimum offers Internet, television, mobile and home phone serving in 21 states.
Selling insurance products under UnitedHealthcare, and health care services under the Optum brand, it is the world's ninth-largest company by revenue and the largest health care company by revenue. It is based on a market based health insurance system as opposed to universal health care. The company is ranked 8th on the 2024 Fortune Global 500. [4]
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). The NPI has replaced the Unique Physician Identification Number (UPIN) as the required identifier for Medicare services, and is used by other payers ...
411 and 611 are supported by the service provider for the calling phone, but not all carriers provide these services. 411 and 611 (formerly 811) are typically blocked within enterprise or private branch exchange (PBX) systems, including cellular telephone service purchased for an enterprise system, since 411 calls generally incur a fee and the ...