Shenzhen iComm Semiconductor CO.,LTD — 31 prefixes (MA-L)

Shenzhen iComm Semiconductor is a fabless RF and mixed-signal chip company based in the Nanshan District of Shenzhen, Guangdong, China. It designs single-chip and module Wi-Fi (802.11 b/g/n, with newer variants adding ax) plus Bluetooth Low Energy 5.0 combo SoCs with an integrated MCU, aimed at IoT endpoints — smart-home devices, security and surveillance gear, and smart-city infrastructure. Named parts include the SV6158, SV6256P, SV32WB01-H, SV6155P, and the SV6358 family, corroborated by the company's own datasheets and by independent device-listing sites. The vendor holds 31 distinct MA-L (24-bit) OUI prefixes under this identical org name, which is why consolidating them into one vendor entry is more useful than minting 31 near-identical per-prefix pages. Because iComm sells reference chips and modules that downstream brands embed in their own products, an iComm OUI on a device identifies the wireless silicon inside, not the finished-product brand — useful for classifying the radio, but not a reliable label for the end device's manufacturer. The IEEE OUI registry publishes no assignment dates, so no registration date is claimed here; two unrelated third-party dates (a 2018 company-founding snippet and a 2014 Wi-Fi Alliance join date) surfaced but are mutually inconsistent and are not OUI assignment dates.

IEEE assignment

31 MA-L prefixes → Shenzhen iComm Semiconductor CO.,LTD, registered Shenzhen / Nanshan District, Guangdong, CN 518067 [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); 31 distinct IEEE prefixes registered to this exact org name [Confirmed] — the IEEE MA-L registry (corroborated by macverify.com, maclookup.app, macaddress.io). NOTE: IEEE's public OUI data publishes NO assignment/registration date; any "date registered" on third-party MAC tools is a database artifact, not an IEEE fact.

No MA-M / MA-S registrations

none found — the IEEE MA-M registry and the IEEE MA-S registry contain no iComm entry [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

Shenzhen, Nanshan District, Guangdong, CN 518067. The registry shows three address text variants for the same org name; the majority carry "Room204, scientific research building, Tsinghua Hi-Tech Park, No.13 Langshan Road, Nanshan District, Shenzhen"; a minority carry "Room 601 / 504A, Block B, Digital Building, Garden City, No.1079 Nanhai Road, Nanshan District." Which is most current cannot be determined from the undated IEEE snapshot.

[Confirmed variants; "current" is Unknown] — the IEEE MA-L registry

Company status

active [Confirmed] — icomm-semi.com; Wi-Fi Alliance member directory (wi-fi.org/node/48379)

Industry

fabless semiconductor (RF / mixed-signal wireless SoCs) [Confirmed] — icomm-semi.com

Device types

Wi-Fi (802.11 b/g/n, some ax) + BLE 5.0 combo SoCs / modules with integrated MCU, for IoT / smart-home / security-surveillance / smart-city applications [Confirmed] — icomm-semi.com, device.report, SV6158-M datasheet

Notable products

SV6158, SV6256P, SV32WB01-H, SV6155P, SV6358 family [Confirmed] — icomm-semi.com, device.report

Verified sample prefixes (all MA-L, Shenzhen iComm Semiconductor)

EC:41:F9, D4:A3:EB, 34:17:36, 20:67:E0, 98:C9:7C, 84:EA:97, B8:CC:5F [Confirmed] — the IEEE MA-L registry (corroborated by macverify.com, maclookup.app)

Full prefix set (31)

EC41F9, B8CC5F, 308E7A, 2CDD5F, 081A1E, 88B5FF, F8160C, 341736, 90B57F, 60DEF4, 489A5B, 7C949F, 086F48, D4A3EB, 9C84B6, 2067E0, 781EB8, A4B039, 106519, 44E64A, A47D9F, 84EA97, 14B2E5, E0CB56, D0A0BB, A0AC78, 149569, F4A3C2, 98C97C, 84B4D2, 509B94 [Confirmed] — the IEEE MA-L registry

Registration date

Unknown — IEEE publishes no OUI assignment dates; not fabricated, not attributed to IEEE [Confirmed] — the IEEE MA-L registry

Security / abuse context

Unknown — no CVEs, advisories, or abuse reports found for the vendor or its chipsets in this pass [Unknown] — (no source; absence of finding, not a confirmed clean bill)

Analyst note

An iComm OUI identifies the Wi-Fi/BLE silicon inside a device, not the finished-product brand (iComm is a chip/module supplier whose parts are embedded by downstream integrators). Treat device-in-the-wild attribution beyond "generic IoT Wi-Fi/BLE combo-chip vendor" as Unknown.