HOME





Tier 1 Carrier
A Tier 1 network is an Internet Protocol (IP) network that can reach every other network on the Internet solely via settlement-free interconnection (also known as settlement-free peering). Tier 1 networks can exchange traffic with other Tier 1 networks without paying any fees for the exchange of traffic in either direction. In contrast, some Tier 2 networks and all Tier 3 networks must pay to transmit traffic on other networks. There is no authority that defines tiers of networks participating in the Internet. The most common and well-accepted definition of a Tier 1 network is a network that can reach every other network on the Internet without purchasing IP transit or paying for peering. By this definition, a Tier 1 network must be a transit-free network (purchases no transit) that peers for no charge with every other Tier 1 network and can reach all major networks on the Internet. Not all transit-free networks are Tier 1 networks, as it is possible to become transit-free by payi ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Internet Protocol
The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. IP has the task of delivering Packet (information technology), packets from the source Host (network), host to the destination host solely based on the IP addresses in the packet Header (computing), headers. For this purpose, IP defines packet structures that encapsulation (networking), encapsulate the data to be delivered. It also defines addressing methods that are used to label the datagram with source and destination information. IP was the connectionless datagram service in the original ''Transmission Control Program'' introduced by Vint Cerf and Bob Kahn in 1974, which was complemented by a connection-oriented service that became the basis for the Transmission Control Protocol (TCP). The Internet protocol suite is therefore often referre ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Private Peering
In computer networking, peering is a voluntary interconnection of administratively separate Internet data network, networks for the purpose of exchanging traffic between the "down-stream" users of each network. Peering is settlement (finance), settlement-free, also known as "bill-and-keep" or "sender keeps all", meaning that neither party pays the other in association with the exchange of traffic; instead, each derives and retains revenue from its own customers. An agreement by two or more networks to peer is instantiated by a physical interconnection of the networks, an exchange of routing information through the Border Gateway Protocol (BGP) routing protocol, tacit agreement to norms of conduct and, in some extraordinarily rare cases (0.07%), a formalized contractual document. In 0.02% of cases the word "peering" is used to describe situations where there is some settlement involved. Because these outliers can be viewed as creating ambiguity, the phrase "settlement-free peering" ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Verio
Verio is a global web hosting provider headquartered in the United States. Incorporated in 1996 in Denver, Colorado, it is a wholly owned subsidiary of Nippon Telegraph and Telephone (NTT) Communications, which acquired the company in 2000. Verio was formed from a consolidation of over 200 smaller Internet service providers (ISPs) and web hosting services. History Verio was founded by Darin Brannan and Justin Jaschke, and several senior management team members subsequently joined from OneComm/Nextel. The company idea, including the initial business plan and pitch deck, began in the halls of Norwest Venture Partners after several months of market diligence and target acquisition discussions. Venture Capitalists George J. Still, Jr. and Darin Brannan from Norwest Venture Partners ultimately teamed with Steven C. Halstedt from the Centennial Funds and Steve Schovee from Telecom Partners to syndicate and launch the business in 1996. In order to validate the strategy and raise ca ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

NTT Communications
is a Japanese telecommunications company owned by Nippon Telegraph and Telephone Corporation. It operates an international network across over 190 countries and regions, with locations in more than 70 countries and regions. The company has approximately 5,500 employees (NTT Communications Group: 11,500 employees) as of March 2020. Its headquarters are located in the Otemachi Place West tower, Otemachi, Chiyoda, Tokyo. NTT Communications Corporation was founded in July 1999 as a subsidiary of Nippon Telegraph and Telephone Corporation. NTT Communications provides network management, telecommunication services such as VPN, and communications technology (ICT) services including cloud, consulting, and managing services for companies and government agencies. History 1996–2005 Founding and early years In 1996, several new policies were issued for the Telecommunications Law, and as a result of this policy change, NTT Communications Corporation was established in July 1999. ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Level 3 Communications
Level 3 Communications, Inc. was an American multinational telecommunications and Internet service provider company headquartered in Broomfield, Colorado. It ultimately became a part of CenturyLink (now Lumen Technologies), where Level 3 President and CEO Jeff Storey was installed as Chief Operating Officer, becoming CEO of CenturyLink one year later in a prearranged succession plan. Level 3 operated a Tier 1 network. The company provided core transport, IP, voice, video, and content delivery for medium-to-large Internet carriers in North America, Latin America, Europe, and selected cities in Asia. Level 3 was also the largest competitive local exchange carrier (CLEC) and the 3rd largest provider of fiber-optic internet access (based on coverage) in the United States. On October 31, 2016, CenturyLink announced an agreement to acquire Level 3 Communications in a cash and stock transaction. Level 3 became part of CenturyLink on November 1, 2017. History 1985 to 2000 In 1985 ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

CenturyLink
Lumen Technologies, Inc. (formerly CenturyLink, Inc.) is an American telecommunications company headquartered in Monroe, Louisiana, which offers communications, network services, security, cloud solutions, voice and managed services through its fiber optic and copper networks, as well as its data centers and cloud computing services. The company has been included in the S&P 600 index since being removed from the S&P 500 in March 2023. Its communications services have included local and long-distance voice, broadband internet, Multiprotocol Label Switching, private line (including special access), Ethernet, hosting (including cloud hosting and managed hosting), data integration, video, network, public access, Voice over Internet Protocol (VoIP), information technology, and other ancillary services. Lumen has gone through many acquisitions, divestments, and structural changes. In the 20th century, this primarily consisted of buying and selling local telecom providers. Larger mer ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Lumen Technologies
Lumen Technologies, Inc. (formerly CenturyLink, Inc.) is an American telecommunications company headquartered in Monroe, Louisiana, which offers communications, network services, security, cloud solutions, voice and managed services through its fiber optic and copper networks, as well as its data centers and cloud computing services. The company has been included in the S&P 600 index since being removed from the S&P 500 in March 2023. Its communications services have included local and long-distance voice, broadband internet, Multiprotocol Label Switching, private line (including special access), Ethernet, hosting (including cloud hosting and managed hosting), data integration, video, network, public access, Voice over Internet Protocol (VoIP), information technology, and other ancillary services. Lumen has gone through many acquisitions, divestments, and structural changes. In the 20th century, this primarily consisted of buying and selling local telecom providers. Larger ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Liberty Global
Liberty Global Ltd. is a British-Dutch-American multinational telecommunications company domiciled in Bermuda, with headquarters in London, Amsterdam and Denver. Its respective legal names are Liberty Global Holdings Limited (UK), Liberty Global B.V. (Netherlands) and Liberty Global, Inc. (United States), with the first of these being publicly traded. It was formed in 2005 by the merger of the international arm of Liberty Media (in turn, a spin-off of American cable-television group TCI) and UnitedGlobalCom (UGC). Liberty Global had an annual revenue of $11.5 billion in 2019, with operations in six countries and 20,600 employees. It has 10.8 million cable service subscribers, or 25.3 million revenue generation units (RGU), combining video, internet, and voice customers. History Liberty Global Inc. was founded in 2005 when Liberty Media International, Inc. (LMI) and UnitedGlobalCom, Inc. (UGC) merged. LMI and UGC became subsidiaries of Liberty Global. UGC founder was Gene ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


GTT Communications
GTT Communications, Inc. (GTT), formerly Global Telecom and Technology, is a Network as a Service (NaaS) and Security as a Service (SECaaS) provider headquartered in Arlington, Virginia. GTT operates a Tier 1 IP network and provides Internet; wide area networking, SD-WAN; network security, voice and video transport services. History In 1998, telecom services integrator Global Internetworking Inc. was founded in McLean, Virginia. That same year, European Telecom and Technology was founded in London. Mercator Partners, a special purpose acquisition company bought Global Internetworking Inc. in April 2005 and European Telecommunications & Technology in 2006. The operations of the companies were merged and renamed Global Telecom & Technology, Inc. In December 2009, GTT acquired Denver-based WBS Connect in a stock and cash transaction, shifting its business model to a network operator providing IP transit and Ethernet services. It then acquired PacketExchange, a privately held ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Deutsche Telekom
Deutsche Telekom AG (, ; often just Telekom, DTAG or DT; stylised as ·T·) is a partially state-owned German telecommunications company headquartered in Bonn and the largest telecommunications provider in Europe by revenue. It was formed in 1995 when , a state monopoly at the time, was privatized and broken up. Since then, Deutsche Telekom has consistently featured among Fortune (magazine), ''Fortune'' ''Magazine'''s top Fortune Global 500, Global 500 companies by revenue, with its ranking at number 79. In 2023, the company was ranked 41st in the Forbes Global 2000. The company operates several subsidiaries worldwide, including the mobile communications brand T-Mobile (brand), T-Mobile. It is the world's List of telephone operating companies, fifth-largest telecommunications company and biggest in Europe by revenue. , the German government held a direct 14.5% stake in company stock and another 17.4% through the government bank KfW. On 4th June 2024, the German government reduce ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

AT&T
AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's List of telecommunications companies, third largest telecommunications company by revenue and the List of mobile network operators in the United States, third largest wireless carrier in the United States behind T-Mobile US, T-Mobile and Verizon. As of 2023, AT&T was ranked 32nd on the Fortune 500, ''Fortune'' 500 rankings of the largest United States corporations, with revenues of $122.4 billion. The modern company to bear the AT&T name began its history as the American District Telegraph Company, formed in St. Louis in 1878. After expanding services to Arkansas, Kansas, Oklahoma and Texas through a series of mergers, it became the Southwestern Bell Telephone Company in 1920. Southwestern Bell was a subsidiary of AT&T Corporation, ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Autonomous System (Internet)
An autonomous system (AS) is a collection of connected Internet protocol address, Internet Protocol (IP) routing prefixes under the control of one or more network operators on behalf of a single administrative entity or domain, that presents a common and clearly defined routing policy to the Internet. Each AS is assigned an autonomous system number (ASN), for use in Border Gateway Protocol (BGP) routing. Autonomous System Numbers are assigned to Regional_Internet_registry#Local_Internet_registry, local Internet registries (LIRs) and end-user organizations by their respective Regional Internet registry, regional Internet registries (RIRs), which in turn receive blocks of ASNs for reassignment from the Internet Assigned Numbers Authority (IANA). The IANA also maintains a registry of ASNs which are reserved for private use (and should therefore not be announced to the global Internet). Originally, the definition required control by a single entity, typically an Internet service provid ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]