I&C Technology — 2 prefixes (MA-L)

The OUI vendor slug vendor-ic-technology resolves to I&C Technology (registered with the ampersand), a South Korean fabless semiconductor company headquartered in the Pangyo tech cluster of Seongnam-si, Gyeonggi-do. The IEEE registry holds two MA-L blocks under this name — 04:36:B8 and 84:72:07 — both verified directly in the local IEEE oui.csv (rows for 0436B8 and 847207). I&C Technology designs System-on-Chip parts for Wi-Fi, power-line communication (PLC), and LTE, plus IoT modules used in smart electricity meters / AMI, arc-fault detection (AFCI/AFDD), and building/smart-city energy management. Because these are purpose-built embedded devices rather than general-purpose networking gear, an I&C Technology OUI on the wire most often indicates a smart-grid endpoint, a metering module, or a communication SoC embedded in a larger product, not a router or switch. Two data caveats matter for any tooling built on these blocks. First, the IEEE row for 84:72:07 carries the country code US even though its address is plainly in Korea — a registry data-entry artifact; the 04:36:B8 row correctly shows KR, and the company operates from South Korea. Second, IEEE publishes no registration dates: third-party tools that show "2014" for 84:72:07 or "2023" for 04:36:B8 are surfacing database artifact timestamps, not IEEE facts.

IEEE assignment

2 prefixes → I&C Technology (MA-L) — 04:36:B8 and 84:72:07 [Confirmed] — local IEEE oui.csv (rows 0436B8, 847207); corroborated by https://maclookup.app/vendors/i-c-technology

Registry / block size

MA-L (24-bit OUI), 2 blocks [Confirmed] — local IEEE oui.csv. NOTE: IEEE's public OUI data (columns: Registry, Assignment, Organization Name, Organization Address) publishes NO assignment/registration date; any "date registered" on third-party tools is a database artifact, not an IEEE fact.

Registered address

I&C Building, 24, Pangyo-ro 255beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, KR 13486 (address on the 04:36:B8 row; the 84:72:07 row carries an older "463-400, Korea" form of the same Seongnam-si address) [Confirmed] — local IEEE oui.csv; corroborated by https://www.cleancss.com/mac-lookup/84-72-07

Country

South Korea (KR) [Confirmed] — local IEEE oui.csv (04:36:B8 row shows KR). DATA TRAP: the 84:72:07 row shows country code US despite a Korean address — a registry data-entry artifact, not a second country of operation.

Company status

active [Likely] — http://en.inctech.co.kr/ (official site live); company profile https://www.investing.com/equities/ic-technology-co-ltd-company-profile

Industry

fabless semiconductor / SoC design (Wi-Fi, PLC, LTE) and IoT modules [Confirmed] — http://en.inctech.co.kr/

Device types

communication SoCs and modules (Wi-Fi / PLC / LTE), smart electricity meters & AMI, arc-fault detection (AFCI/AFDD), smart-city sensor nodes, building energy-management hardware [Confirmed] — http://en.inctech.co.kr/ ; https://www.komachine.com/en/companies/ictechnology

Corporate detail

I&C Technology Co., Ltd., listed on KOSDAQ (052860); founded 1996 [Likely] — single-sourced to https://www.investing.com/equities/ic-technology-co-ltd-company-profile (corroborating Korean-language profile https://en.namu.wiki/w/%EC%95%84%EC%9D%B4%EC%95%A4%EC%94%A8%ED%85%8C%ED%81%AC%EB%86%80%EB%A1%9C%EC%A7%80)

Security context

no vendor-specific CVEs or public vulnerability disclosures surfaced for I&C Technology chips/devices [Likely — absence of evidence, not proof of none]. Device class (IoT / AMI / smart-grid embedded) carries the usual embedded-device risk profile: firmware-update hygiene, default-credential exposure, physical access to deployed infrastructure. — no source found; assessment by device class.

Verified sample prefixes (both MA-L, I&C Technology)

04:36:B8, 84:72:07 [Confirmed] — local IEEE oui.csv

Analyst note

an I&C Technology OUI most likely marks a smart-grid / metering / IoT embedded endpoint rather than networking infrastructure. When matching 84:72:07, ignore the US country code in raw IEEE data — it is an artifact; the vendor is Korean.