National Internet registry
A national Internet registry (or NIR) is an organization under the umbrella of a regional Internet registry (RIR) with the task of coordinating IP address allocations and other Internet resource management functions at a national level within a country or economic unit. NIRs were created in the early days of allocating IP addresses, with the last NIR created in India in 2013.
Source: Wikipedia — National Internet registry (CC BY-SA 4.0)