Chongqing Yipingfang Technology Co., Ltd. — 4 prefixes (MA-L)

A MAC address beginning with DC:9E:AB, 6C:8F:4E, 78:1C:1E, or D8:A0:E6 belongs to Chongqing Yipingfang Technology Co., Ltd., a Chongqing, China-based technology company. The specific device class carrying these prefixes is not independently confirmed — no teardown or in-the-wild device sighting was found for this pass.

The company holds four separate MA-L (24-bit) OUI assignments under the identical registered name and address, which is itself a stronger substance signal than a bare single-OUI registration. Search-engine snippets (not independently corroborated by direct primary-source fetches) describe an internet-technology firm whose core business is "intelligent large-screen software and cross-scenario marketing," incorporated 2015-01-09 with roughly RMB 20.17M registered capital and a 2024 "high-tech enterprise" designation.

The same snippets attribute a granted Chinese patent, CN116366280B, for an "anonymous device identifier control method" (filed December 2022) to the company — device/visitor-identification technology, which is plausible framing given the OUI context but not itself confirmation of what ships under these prefixes. One snippet claims a 2025 rename/relocation from the sibling OUI vendor "Shenzhen Yipingfang Network Technology Co., Ltd."; that claim is unverified and conflicts with the existing DONE entry for the Shenzhen vendor, which treats the two as separate legal entities — that determination stands.

IEEE's public OUI registry (Registry, Assignment, Organization Name, Organization Address columns only) publishes no assignment or registration date for any of the four blocks. A third-party aggregator shows a "Registration Date" of 28 December 2022 for DC:9E:AB; that is a database artifact, not an IEEE fact, and is not reproduced here as a registration date.

IEEE assignment

4 MA-L blocks → Chongqing Yipingfang Technology Co., Ltd., registered Bishan District, Chongqing, CN [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) x4; no MA-M or MA-S blocks found for this org [Confirmed] — the IEEE MA-L registry

HQ / country

No. 1-10, Tieshan Road, Biquan Street, Bishan District, Chongqing, CN 402760 [Confirmed] — the IEEE MA-L registry

Company status

active — inferred from 2024 "high-tech enterprise" designation and recent (2023) publicized brand campaign cited in search snippets [Likely] — search-engine SERP snippets citing tianyancha.com, aiqicha.baidu.com, qcc.com (direct article URLs not independently retrieved this pass)

Device types

Unknown / not confirmed; plausible inference from business profile only (smart-screen/large-screen software, device-identifier tracking) [Unknown]

Notable products

"Intelligent large-screen software and cross-scenario marketing" platform (万物皆可为屏 / "everything can be a screen" brand campaign); patent CN116366280B for an "anonymous device identifier control method" (filed Dec 2022) [Likely] — search-engine SERP snippets citing Tencent News (dated 2023-07-28) and NetEase News (direct article URLs not independently retrieved this pass)

Verified sample prefixes

DC:9E:AB, 6C:8F:4E, 78:1C:1E, D8:A0:E6 (all MA-L, Chongqing Yipingfang Technology Co., Ltd.) [Confirmed] — the IEEE MA-L registry, cross-checked against the Wireshark manufacturer database

Date registered

Unknown / not published by IEEE for any block; a third-party aggregator (maclookup.app) shows "28 December 2022" for DC:9E:AB, which is a database artifact, not an IEEE fact, and is not recorded as such [Confirmed] — https://maclookup.app/search/result?mac=dc9eab (non-authoritative for dates)

Security context

no CVEs, advisories, or vulnerability writeups found for this vendor or these prefixes in this pass [Unknown]

Related vendors

possible corporate lineage claim (unverified) to Shenzhen Yipingfang Network Technology Co., Ltd. — that DONE entry treats the two as separate legal entities (different registered name/address, different OUI blocks); a further similarly-named entity, "侨易平方（重庆）科技有限公司," surfaced in one snippet but is not confirmed related and holds no OUI assignment under these prefixes

[Unknown] — /mac/vendor/shenzhen-yipingfang-network-technology/

Analyst note

4 confirmed MA-L blocks plus a described product/business line and a named patent support genuine company substance over a bare single-OUI registration, though the business-profile sourcing this pass (search-engine SERP snippets, not direct primary-source fetches or a native WebSearch call) is weaker than the registry facts and is tagged accordingly [Likely]