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Telephone number mapping is a system of unifying the international telephone number system of the public switched telephone network with the Internet addressing and identification name spaces. Internationally, telephone numbers are systematically organized by the E.164 standard, while the Internet uses the Domain Name System (DNS) for linking ...
The Domain Name System (DNS) is a hierarchical and decentralized system that translates domain names into numerical IP addresses. It is essential for the functioning of the Internet and other networks. Learn more about the history, structure, and functions of DNS on Wikipedia, the free encyclopedia.
Public land mobile network. In telecommunication, a public land mobile network ( PLMN) is a combination of wireless communication services offered by a specific operator in a specific country. [1] [2] A PLMN typically consists of several cellular technologies like GSM / 2G, UMTS / 3G, LTE / 4G, NR/5G, offered by a single operator within a given ...
Access Point Name. An Access Point Name ( APN) is the name of a gateway [1] between a mobile network ( GSM, GPRS, 3G, 4G and 5G) and another computer network, frequently the public Internet. [2] A mobile device making a data connection must be configured with an APN to present to the carrier. The carrier will then examine this identifier to ...
The following tables compare general and technical information for a number of notable webmail providers who offer a web interface in English.. The list does not include web hosting providers who may offer email server and/or client software as a part of hosting package, or telecommunication providers (mobile network operators, internet service providers) who may offer mailboxes exclusively to ...
A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1] IANA also oversees the approval process for new proposed top-level domains for ICANN. As of April 2021 [update], their root domain contains 1502 top-level domains. [2] [3] As of March 2021 [update], the IANA root ...
Overview. Mobile number portability is implemented in varying ways across the globe. The international and European standard implements "recipient-led" porting, in which a customer wishing to port a telephone number contacts the new network (recipient), which sends the number portability request (NPR) to the current network operator (donor).
WHOIS(pronounced as the phrase "who is") is a query and response protocolthat is used for querying databasesthat store an Internetresource's registered users or assignees. These resources include domain names, IP addressblocks and autonomous systems, but it is also used for a wider range of other information.