Elitegroup Computer Systems Co., Ltd. (ECS) — 24 prefixes (MA-L)

Elitegroup Computer Systems Co., Ltd. — universally branded ECS — is a Taiwanese PC-hardware maker founded in 1987 and listed on the Taiwan Stock Exchange (ticker 2331), the first motherboard manufacturer to trade there. The IEEE registry assigns it 24 MA-L blocks, all in the MA-L (24-bit OUI) class, predominantly registered from Taipei, Taiwan. ECS built its name on PC motherboards — at its 2002 peak it shipped on the order of 24 million boards a year, among the largest motherboard makers worldwide — and over time broadened into laptops/notebooks, mini PCs (the LIVA series), all-in-one systems, tablets, gaming and industrial PCs, embedded/edge platforms, and even EV chargers. Its corporate history includes the 2005 merger with low-cost board maker PCChips and the 2006 acquisition of notebook maker Uniwill. For network-classification purposes the practical read is this: a device showing an ECS OUI in a scan is almost certainly a commodity PC, laptop, mini-PC, or OEM/embedded board running stock firmware — not a dedicated network appliance like a router or switch — so its inherent network attack surface is low relative to networking gear. One data-quality caveat: the registry shows ECS's organization name with minor capitalization and punctuation variants across blocks (Elitegroup / EliteGroup / ELITEGROUP), and the 74:27:EA block lists country as US despite a Taipei address — a likely registry data-entry artifact, not a separate US entity.

IEEE assignment

24 prefixes → Elitegroup Computer Systems Co., Ltd., registered Taipei, Taiwan [Confirmed] — IEEE MA-L (local the IEEE MA-L registry cache)

Registry / block size

MA-L (24-bit OUI); 24 IEEE prefixes; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) entries found [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools (e.g. the "22 April 1998" cited by maclookup/netify) is a database artifact, not an IEEE fact.

HQ / country

No. 239, Sec. 2, Ti Ding Blvd., Taipei 11493, TW (most-recent registry address; older blocks list No. 22, Alley 38, Lane 91, Sec. 1, Nei Hu Road, Taipei 114) [Confirmed] — IEEE MA-L

Company status

active; publicly traded on Taiwan Stock Exchange (TWSE 2331) [Confirmed] — en.wikipedia.org/wiki/Elitegroup_Computer_Systems, ecs.com.tw/en

Founded

1987 [Confirmed] — en.wikipedia.org/wiki/Elitegroup_Computer_Systems

Device types

PC motherboards, laptops/notebooks, mini PCs (LIVA series), all-in-one computers, tablets, gaming PCs, industrial/embedded/edge platforms, EV chargers [Confirmed] — ecs.com.tw/en, embeddedcomputing.com/company/elitegroup-computer-systems-ecs

Notable products

ECS motherboards (consumer + OEM), LIVA mini PCs

Verified sample prefixes (all MA-L, Elitegroup)

88:AE:DD, 1C:69:7A, B8:AE:ED, 00:25:11, 00:07:95, F4:4D:30 [Confirmed] — IEEE MA-L

Notable history

first motherboard maker listed on TWSE; merged with PCChips (2005); acquired Uniwill notebooks (2006); ~5th-largest motherboard maker globally at 2002 peak (~24M units) [Confirmed] — en.wikipedia.org/wiki/Elitegroup_Computer_Systems

Data trap

org name varies in registry (Elitegroup / EliteGroup / ELITEGROUP, with punctuation variants); 74:27:EA lists country US despite a Taipei address — likely a registry data-entry artifact, not a distinct US entity [Confirmed] — IEEE MA-L

Security context

no CVEs or confirmed public security incidents specific to Elitegroup Computer Systems found this pass (search results for "ECOS"/"Dell ECS" are unrelated companies) [Likely] — cvedetails.com (absence-of-finding, not proof of none)

Analyst note

an ECS OUI in a scan most likely identifies a commodity PC/laptop/mini-PC or OEM embedded board on stock firmware — not a dedicated network appliance; low inherent attack surface relative to routers/switches.