Strictly speaking it can and does run on subnets that are exactly /64. Does anyone actually hand out smaller delegations today?

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tsimionescu a day ago | parent [-]

My point is that they might only be getting 1 /64 from their ISP; or getting a /62 or something small, and needing more subnets anyway. In these situations, you may not have an extra /64 to dedicate to SLAAC for certain devices.

	▲	db48x a day ago \| parent [-]
		Right. I was merely correcting your statement that SLAAC needs more than 64 bits to work with. But my question remains; do any ISPs hand out smaller delegations than a /64?