China Mobile Group Device Co.,Ltd. — 76 prefixes (MA-L)

China Mobile Group Device Co.,Ltd. is the device-manufacturing and branding arm of the China Mobile Communications Group, and it holds roughly 76 MA-L OUI blocks in the cached IEEE registry — all registered to one Beijing-based entity at 32 Xuanwumen West Street, Xicheng District (postal code 100053), which is China Mobile's own headquarters address. Unlike the sibling entity China Mobile IoT Company Limited (a Chongqing-based chip/module provider for infrastructure IoT), this organization operates a consumer-facing device business under the "China Mobile Global Device Alliance" umbrella (products.chinamobiledevice.com), spanning phones, personal devices, home devices, and industry/IoT devices, plus home-platform and customization solutions. That fits the pattern of an operator-branded hardware line — handsets, home gateways and CPE, home devices, and IoT hardware — tied to China Mobile's network services. Consolidating these 76 blocks into one vendor entry is far more useful than minting near-identical per-prefix pages, since they all trace to one legal entity at one address. A critical caveat for any registration-date work: IEEE publishes no assignment or registration dates for MA-L blocks (the IEEE MA-L registry carries only Registry, Assignment, Organization Name, and Organization Address columns), so the per-prefix "date registered" values shown by third-party tools such as maclookup.app (which reports an allocation date of 02 May 2013 and a last-update of 06 May 2026 for this vendor) are database artifacts, not IEEE facts, and none are recorded here. Finally, the systemic security context applies as it does to the sibling China Mobile entry: as part of the China Mobile corporate family the vendor operates under China's National Intelligence Law, and Chinese-manufactured consumer/home and cellular hardware has drawn broad industry scrutiny — though no CVEs specific to this vendor's products were found in this research pass.

IEEE assignment

~76 MA-L prefixes → China Mobile Group Device Co.,Ltd., registered Beijing, CN [Confirmed] — the IEEE MA-L registry (IEEE the IEEE MA-L registry cache, fetched 2026-06-11 per the cached registry snapshots/manifest.json). All 76 rows share one org name and one address (two whitespace-only variants of the address string appear in the raw CSV — a double space vs. single space after "Xicheng District" — resolving to the same postal address, not a substantive difference).

Registry / block size

MA-L (24-bit OUI, /24 block of 16,777,216 addresses per assignment); all assignments are MA-L. No MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) entries found for this organization. [Confirmed] — the IEEE MA-L registry. NOTE: IEEE's public OUI data publishes NO assignment/registration date; any "date registered" on third-party tools is a database artifact, not an IEEE fact.

HQ / country

32 Xuanwumen West Street, Xicheng District, Beijing 100053, CN (all 76 blocks). This is China Mobile's own headquarters address, tying the entity to the China Mobile Communications Group corporate family. Country CN. [Confirmed] — the IEEE MA-L registry; https://www.dnb.com/business-directory/company-profiles.china_mobile_group_device_co_ltd.273594f9da03ad0e8375e746e0fbc214.html

Company status

active; device-manufacturing/branding arm within the China Mobile Communications Group corporate family [Confirmed] — D&B company profile (Beijing, Telecommunications Equipment Manufacturing, ~374 employees); iF World Design Guide brand profile

Org type

consumer/operator-branded device manufacturer and branding arm (not a chip/module infrastructure provider like the sibling China Mobile IoT entity) [Likely] — http://products.chinamobiledevice.com/ ("China Mobile Global Device Alliance"); https://ifdesign.com/en/brands-creatives/company/china-mobile-group-device/9830

Device types

phones/handsets; personal devices; home devices (home gateways/CPE, home-platform hardware); industry & IoT devices; plus home-platform and customization solutions, per the China Mobile Global Device Alliance product portal. No single flagship model could be tied to a specific sampled OUI prefix in this pass.

[Likely] — http://products.chinamobiledevice.com/

Prefix count

registry cache shows 76 MA-L blocks (first-party count). The deployed site page /mac/vendor/china-mobile-group-device/ currently states 75, and third-party maclookup.app reports 76 — a 1-count spread. Counts are snapshots and drift; the 76-block figure is the first-party registry-cache count. Recommend reconciling the displayed count against the current registry snapshot before publishing. [Confirmed registry count; site/third-party spread noted] — the IEEE MA-L registry; mac/vendor/china-mobile-group-device/index.html; https://maclookup.app/vendors/china-mobile-group-device-co-ltd

Verified sample prefixes (all MA-L)

C4:33:06, 18:69:DA, 44:C8:74, AC:5A:EE, 50:29:7B, 7C:6A:60, DC:7C:F7, 2C:56:83, 1C:41:76, 94:FF:61, F8:48:FD, A0:21:AA [Confirmed] — the IEEE MA-L registry

Registration-date note

maclookup.app's summary asserts this vendor "registered its MAC address allocation on 02 May 2013" with a most-recent update of 06 May 2026. These are third-party database artifacts, not IEEE facts — the IEEE Registration Authority publishes NO official registration timestamps for individual MA-L assignments — and must never be presented as IEEE-issued facts or recorded as allocated_date. [Confirmed that these are third-party artifacts] — https://maclookup.app/vendors/china-mobile-group-device-co-ltd; https://standards.ieee.org/products-programs/regauth/mac/

Security / analyst note

elevated geopolitical-risk category, consistent with the sibling China Mobile IoT entry. As part of the China Mobile corporate family the vendor operates under China's National Intelligence Law, which can compel cooperation with state intelligence; Chinese-manufactured consumer/home and cellular-connected hardware has drawn broad industry scrutiny (Forescout 2025 on Chinese IoT device growth in US networks; FDD April 2026 on Chinese cellular-module supply-chain risk). That reporting is not vendor-specific and should not be presented as a finding about this company's products. No CVEs specific to this vendor were found in this pass. [Likely systemic context; no product-specific CVEs found] — https://www.forescout.com/blog/probe-into-chinese-connected-devices-in-us-networks/; https://www.fdd.org/analysis/2026/04/15/the-risks-of-chinese-produced-cellular-modules/

Website

product portal at http://products.chinamobiledevice.com/ ("China Mobile Global Device Alliance"); parent is china-mobile.com (China Mobile Group). No standalone first-party corporate "about us" page beyond the product portal and D&B/iF Design listings was confirmed.

[Likely] — http://products.chinamobiledevice.com/

IANA Reference

not applicable — OUI/MAC vendor entry has no IANA RFC reference; column stays blank. [Confirmed]