Which RIR controls IP address assignments in Europe, the Middle East, and parts of Central Asia?

The Regional Internet Registry (RIR) that controls IP address assignments in Europe, the Middle East, and parts of Central Asia is the RIPE Network Coordination Centre (RIPE NCC). This organization is tasked with the management of IP address allocations in its designated regions, which include a broad geographical area primarily focused on Europe and surrounding regions.

RIPE NCC plays a critical role in managing the distribution and registration of Internet Protocol addresses and Autonomous System Numbers, ensuring that these resources are allocated efficiently and fairly among its members. The organization also provides various services, such as maintaining a public database of IP address allocations and offering training and support for network operators.

In comparison, the other options represent different RIRs that serve different geographic areas: ARIN (American Registry for Internet Numbers) covers North America, APNIC (Asia-Pacific Network Information Centre) is responsible for the Asia-Pacific region, and LACNIC (Latin America and Caribbean Network Information Centre) oversees the Latin American and Caribbean regions. Thus, they do not have authority over IP address allocations in Europe and the relevant adjacent areas that RIPE NCC manages.