A unique local address (ULA) is an Internet Protocol version 6 (IPv6) address in the address range fc00::/7. Its purpose in IPv6 is analogous to IPv4 addressing in private networks. Unique local addresses may be used freely, without centralized registration, inside a single site or organization or spanning a limited number of sites or organizations. They are routable only within the scope of such private networks, but not in the global IPv6 Internet.
Based on the above text, what's the best answer to this question: are ipv6 unique local unicast addresses routable within and outside an organization?
no