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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.
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
Verizon is an American wireless network operator that previously operated as a separate division of Verizon Communications under the name Verizon Wireless.In a 2019 reorganization, Verizon moved the wireless products and services into the divisions Verizon Consumer and Verizon Business, and stopped using the Verizon Wireless name.
Really was founded by Adam Lyons, who previously founded an insurance comparison site, The Zebra. [1] [2] Really operates a decentralized wireless mobile network started in Austin, Texas and plans to expand its wireless network worldwide.
An alternative to hosting and querying a database is to obtain the country code for a given IP address through a DNSBL-style lookup from a remote server. Some commercial databases have augmented geolocation software with demographic data to enable demographic-type targeting using IP address data.
These are merely contrived examples and do not necessarily represent real cells (see the list of Mobile Country Codes and [3]). 001-01-1-1: 001-01 is a PLMN designated for testing purposes, with location area 1 and cell 1. 289-88-23-42: would identify cell 42 in location area 23 of the A-Mobile operator in Abkhazia
Address-checking tools using AMS provide address standardization, as well as city/state and ZIP Code lookup features. [1] Business mailers use the USPS Address Management System:-[e correct ZIP Codes. City/state lookup services use AMS to provide the city and state corresponding to any given ZIP Code. [2]
Area codes 315 and 680 are telephone area codes of the North American Numbering Plan (NANP) for the north-central area of the U.S. state of New York. Area code 315 was installed as one of the original North American area codes in 1947, while area code 680 was added to the numbering plan area (NPA) in an overlay plan in 2017.
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