Autonomous system
AS11289 AS11289 - SANDISK TECHNOLOGIES, INC.
Unclassified ARIN
Summary
SanDisk Technologies, Inc.
enterprise legacy
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.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 5.89K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11289- Registry name
- AS11289
- Registrant
- SANDISK TECHNOLOGIES, INC.
- Abuse contact
- Arin-admin@sandisk.com
- Registered
- 2015-06-12
- Last changed
- 2025-02-21
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 12 with no ROA
- ROAs
- 0 authorising AS11289
- ASPA
- no ASPA record
- IRR
- 100% registered · 12 of 12 announcements
- Route objects
- 48 naming AS11289
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,843 prefixes, as published 2026-11-02. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere