Final answer:
ISPs assign public IPv6 blocks as /48 network masks, not /64. The statement is true; ISPs typically assign /64 network masks to end-users for IPv6 blocks which offer an extremely large number of individual IP addresses for each customer.
Step-by-step explanation:
False. ISPs assign public IPv6 blocks as /48 network masks, not /64.
The statement is true; ISPs typically assign /64 network masks to end-users for IPv6 blocks which offer an extremely large number of individual IP addresses for each customer.
The statement that Internet Service Providers (ISPs) assign public IPv6 blocks as /64 network masks is generally TRUE. A /64 network mask is the standard size for the delegation of a subnet that end-users generally receive from an ISP in IPv6. The IPv6 addressing architecture is quite expansive and allows for a much larger number of individual addresses compared to IPv4. Each IPv6 subnet that comes with a /64 prefix can contain 2^64 individual IP addresses, which is vast and sufficient for end-user segments.
When ISPs provide IPv6 addresses to customers, they typically assign a /64 subnet, which means that any individual customer has access to approximately 18 quintillion unique IPv6 addresses under that particular subnet. These addresses can be used for various devices and services, providing plenty of room for future growth without the need for further subnetting. This large allocation is possible because the total IPv6 address space is 2^128 addresses, a seemingly inexhaustible supply compared to the limited space of IPv4 addresses.