Final answer:
The number of individual networking addresses required for the Internet currently exceeds 4.3 billion, primarily due to the limitation of IPv4 technology. Adoption of IPv6 has been essential in meeting the growing demand for unique device identifiers on the Internet.
Step-by-step explanation:
The number of individual networking addresses required for the Internet is currently more than 4.3 billion. This figure is linked to the limitation of IPv4 addressing, which is the underlying technology that enables each device on the Internet to have a unique identifier. However, various solutions such as the adoption of IPv6, which supports a much larger number of addresses, have been implemented to address the growing demand for Internet-connected devices. Even though the number of websites in active use may be closer to 200,000, this figure does not correlate directly with the number of required networking addresses, as multiple websites can be hosted on a single address and devices need addresses independently of websites.