i Controls, Inc. — 2 MA-L prefixes

A MAC address beginning 00:00:3B or 00:90:09 belongs to "i Controls, Inc." (also styled "I Controls, Inc."), a two-block Korean MA-L registrant most plausibly tracing to a building-automation and home-IoT company. Where corroborated, the device class is intelligent building-system controllers and home-network "wallpad" intercom/control panels, not consumer networking gear.

IEEE lists two independent 24-bit assignments under near-identical organization-name text: 00:00:3B, registered to an address in Doonsan, Daejeon, and 00:90:09, registered to an address in Jeongja-dong, Seongnam. Both carry the "i Controls" name, but only the Seongnam entry has any corroborating identity evidence found in this pass.

The Seongnam address references an "I'Park" building, which lines up with the public corporate history of a well-documented Korean firm: Facility Management Korea (founded 1992) renamed i-Service Co., Ltd. (2000), renamed i-Controls Co., Ltd. (2009) after absorbing Hyundai E&C's building-automation division, then HDC I-Controls (2018), merged into HDC Labs Co., Ltd. (2021-12-01). This lineage match is Likely, not Confirmed, since no primary Korean corporate registry record was checked to tie the IEEE registrant string directly to that legal entity.

The Daejeon-registered 00:00:3B address has no independent corroboration in this research; it may be a branch or R&D office of the same company, or an unrelated entity that happens to share the English name "i Controls, Inc." No CVE or CISA ICS advisory is recorded for i-Controls, HDC I-Controls, or the possibly-unrelated "NeoControl Systems" branding now seen on the icontrols.co.kr domain, as of an August 2026 search.

IEEE assignment

2 prefixes → "i Controls, Inc." / "I Controls, Inc.", registered in South Korea [Confirmed] — the IEEE MA-L registry 00003B, the IEEE MA-L registry 009009

Registry / block size

MA-L (24-bit OUI); holds 2 IEEE prefixes, no MA-M or MA-S assignments found for any i-Controls variant [Confirmed] — the IEEE MA-L registry, the IEEE MA-S registry, the IEEE MA-M registry

HQ / country

Two distinct Korean addresses — 12F Doonsan building, 105-7, KR 135-714 (Daejeon area; 00:00:3B); 2nd Fl, I'Park 302, 11 Jeongja-Dong, Seongnam, Gyeonggi-Do, KR 463-859 (00:90:09) [Confirmed] — the IEEE MA-L registry 00003B, the IEEE MA-L registry 009009

Company status

Likely active under the successor name HDC Labs Co., Ltd. — applies only to the Seongnam-address lineage; the Daejeon-address entity's current status is Unknown [Likely] — http://www.hdc-labs.com/company/history

Device types

Intelligent Building System controllers, home-network wallpad control/intercom panels [Likely] — bacnetinternational.net BTL directory (search-snippet), csa-iot.org member directory (search-snippet)

Notable products

AI-voice-assistant wallpad marketed in Korean as "AI 월패드" [Likely] — Korean-language search-result summary, page not independently fetched

Verified sample prefixes

00:00:3B, 00:90:09 [Confirmed] — the IEEE MA-L registry

Related vendors

Possible same lineage as HDC I-Controls / HDC Labs Co., Ltd., limited to the Seongnam-address (00:90:09) block; not established for 00:00:3B [Likely] — http://www.hdc-labs.com/company/history

Special note

icontrols.co.kr currently shows content branded "NeoControl Systems, established 2007" per a search-engine snippet (direct page fetch failed repeatedly); this is a different founding year/name than the i-Controls/HDC lineage and may reflect domain reuse after HDC Labs' 2021 merger — flagged as unresolved, not the OUI registrant's confirmed site

[Unverified] — WebSearch snippet only

Analyst note

Treat this as a registrant with plausible company substance (2 independent MA-L blocks, a name mapping to a real, product-shipping Korean building-automation/home-IoT firm) rather than a bare shell, but do not present the identity match as certain — the Daejeon block is unconfirmed and key corroborating pages (BTL listing, CSA-IOT member page, icontrols.co.kr) rest on search snippets, not fetched content.