MAC address vendor

xFusion Digital Technologies Co., Ltd. — 2 confirmed MA-L prefixes (44:1A:4C, 34:73:79)

Primary prefix
44:1A:4C
Block
MA-L
Status
Active

Summary

// what this is
xFusion Digital Technologies is registered to MAC prefix 44:1A:4C and 1 more in the IEEE OUI database. When a device's MAC address begins with 44:1A:4C, that block was registered by xFusion Digital Technologies — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
As a Huawei-server-lineage, Henan-SOE-affiliated entity, xFusion equipment may draw the same supply-chain/geopolitical scrutiny in some markets that Huawei-lineage hardware does; no formal ban or advisory specific to xFusion was found in this pass.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

xFusion Digital Technologies Co., Ltd. is a Zhengzhou, Henan-headquartered enterprise-server manufacturer formed in September 2021 when Huawei divested its x86 server business after US sanctions cut Huawei off from Intel server chips. The assets transferred to Henan Super Fusion Energy Technology Co., a subsidiary of a Henan provincial state-owned enterprise, and xFusion inherited Huawei's server R&D team along with its longtime server-division CEO, Liu Hongyun. The company's IEEE registry address — "9th Floor, Building 1, Zensun Boya Square, Longzihu Wisdom Island, Zhengdong New District, Zhengzhou, Henan, CN 450000" — matches this corporate history and confirms the registrant is a real, operating entity rather than a shell. xFusion ships FusionServer rack and blade servers, high-density liquid-cooled and rack-scale systems, heterogeneous AI-GPU servers, and KunLun mission-critical servers, so a network device carrying an xFusion OUI is almost certainly a datacenter server NIC or iBMC (Board Management Controller) management interface rather than a consumer product. The company runs an active PSIRT publishing numbered security advisories and, as of early 2026, was pursuing an IPO on strong AI-server revenue growth.

IEEE assignments
44:1A:4C ("xFusion Digital Technologies Co.,Ltd.") and 34:73:79 ("xFusion Digital Technologies Co., Limited") — two distinct MA-L blocks, same company with minor legal-name/address spelling variants (Co.,Ltd. vs Co., Limited; Zhendong vs Zhengdong)
[Confirmed] — the IEEE MA-L registry lines 23867, 24462
Registry / block size
MA-L (24-bit OUI); no MA-M or MA-S assignments found [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (zero MA-M/MA-S hits)
Possible third MA-L block (2A
0B:B8): reported by a separate web-research pass citing the Wireshark manufacturer database, but not independently confirmed against the IEEE MA-L registry/mam.csv/oui36.csv by the direct registry lookup
[Likely] — reported source the Wireshark manufacturer database (unverified against the primary IEEE CSV)
Registered address
9th Floor, Building 1, Zensun Boya Square, Longzihu Wisdom Island, Zhendong/Zhengdong New District, Zhengzhou, Henan, CN 450000 [Confirmed] — IEEE MA-L registry rows
Date registered
Unknown — IEEE publishes no assignment/registration date for OUI blocks. A third-party aggregator (maclookup.app) shows "13 May 2023" for one block; this is a database-scrape artifact, not an IEEE fact, and is not recorded as a registration date
[Confirmed absence / not fabricated] — https://maclookup.app/vendors/xfusion-digital-technologies-co-ltd
Corporate identity
formed Sept 2021 as a spinoff of Huawei's x86 server business, transferred to Henan Super Fusion Energy Technology Co. (Henan provincial SOE subsidiary); inherited Huawei's server R&D team and CEO Liu Hongyun [Confirmed] — https://www.lightreading.com/finance/huawei-server-spinoff-xfusion-heads-for-ipo, https://www.sdxcentral.com/news/huawei-server-spin-out-xfusion-looking-to-go-public-in-china-report/
Company status
active, pursuing IPO (Citic Securities tutoring process began Dec 2025) on AI-server-driven revenue growth [Confirmed] — https://www.digitimes.com/news/a20260107VL210/huawei-xfusion-ipo-servers-infrastructure-revenue.html, https://www.digitimes.com/news/a20260521VL224/huawei-xfusion-revenue-supply-chain-china.html
Device types / notable products
FusionServer rack and blade servers, high-density liquid-cooled and rack-scale servers, heterogeneous AI-GPU servers (e.g. FusionServer G8600 V7), KunLun mission-critical servers — server NICs and iBMC management interfaces are the expected on-network signature
[Confirmed] — https://www.xfusion.com/en/product, https://www.xfusion.com/en/product/heterogeneous-server
Security posture
active PSIRT at support.xfusion.com/psirt/en, following ISO/IEC 30111 and ISO/IEC 29147, publishing numbered security advisories (e.g. xfusion-sa-2023-11-28-Intel); no CVE tied specifically to these OUIs was found, and none is expected since OUIs are not vulnerability-addressable [Likely — single web-angle source, not cross-checked by a second independent angle] — https://support.xfusion.com/psirt/en/vulnerability-response-policies
Company-substance verdict
identifiable real company, multiple OUI assignments, verifiable corporate history, active product catalog, and active PSIRT together establish substance beyond a bare IEEE registration — not a shell/opportunistic bulk registrant [Confirmed] — https://www.xfusion.com/en
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 44:1A:4CMA-L
  2. 34:73:79MA-L
[ 03 ] — Related

Keep digging.