Whois & Analysis for giffgaff.com

Giffgaff (stylized "giffgaff") is a mobile telephone network running as a Mobile Virtual Network Operator (MVNO) using the United Kingdom O2 network.

Owned by O2's owners Telefónica, Giffgaff was launched on 25 November 2009.

A subscriber identity module or subscriber identification module (SIM) is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related , which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers).

It is also possible to store contact information on many SIM cards.

SIM cards are always used on GSM phones; for CDMA phones, they are only needed for newer LTE-capable handsets.

SIM cards can also be used in satellite phones.

The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.

It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies.

The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and peer-to-peer networks for file sharing.

A cellular network or mobile network is a communication network where the last link is wireless.

The network is distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station.

This base station provides the cell with the network coverage which can be used for transmission of voice, data and others.

A cell might use a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell.

Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile phones, fixed devices (e.g., desktop computers) or portable devices (e.g., tablet computers or smartphones).

While text messages are usually sent over a phone network, due to the convergence between the telecommunication and broadcasting industries in the 2000s, text messages may also be sent via a cable network or Local Area Network.

The term originally referred to messages sent using the Short Message Service (SMS).

It has grown beyond alphanumeric text to include multimedia messages (known as MMS) containing digital images, videos, and sound content, as well as ideograms known as emoji (happy faces and other icons).