AS11289 AS11289 - SANDISK TECHNOLOGIES, INC.

AS11289 is held by SanDisk Technologies, Inc., the flash-memory and storage company. RIS sees 12 IPv4 prefixes, 5,888 addresses, no IPv6, and 4 observed neighbours — an enterprise network, not a provider of any kind.

What it's used for

SanDisk's own corporate and engineering IT: offices, internal systems, and the outward-facing edge of the company's business and support infrastructure. Two facts fix the reading. First, the neighbour count: four observed neighbours means a small set of upstream transit links and essentially no peering, which is what a company that buys connectivity looks like. Second, the entire announced inventory lives inside a single legacy block, 129.253.0.0/16, and every prefix sampled is registered to SANDISKCO (org: SANDISK TECHNOLOGIES, INC.) — the holder's own ARIN org. Holder, registrant and announcer are one and the same throughout, which is the plain signature of a real operator running its own space.

Notable

The announcements are a nest of overlapping routes: 129.253.204.0/22 and 129.253.212.0/22 and 129.253.208.0/22 each appear alongside /23s and /24s carved out of them. That is deliberate deaggregation, typically to steer particular sites or services across different upstreams, and it is why the prefix count (12) is high relative to the modest address total (5,888).

Interesting

The corporate identity behind this handle has moved more than once — SanDisk spent years inside Western Digital before the SanDisk name was carried by a standalone entity again — so it is worth resisting any narrative about "who really owns this" and simply reading the registry: today the ARIN org on every prefix says SanDisk Technologies, and that is what the card asserts. Nothing in the routing suggests hosting, transit or leased address space; treat traffic from AS11289 as coming from a technology company's internal network.