Jabil Circuit (Guangzhou) Ltd. — 2 prefixes (MA-L)

A MAC address starting with 0C:86:C7 or B4:41:30 belongs to Jabil Circuit (Guangzhou) Ltd., a China-based contract electronics manufacturing (EMS) subsidiary of the publicly traded Jabil Inc. (NYSE: JBL). Devices carrying either prefix were assembled at its Guangzhou facility, not built as a Jabil-branded consumer product.

Both blocks trace to the same registered address on Jun Cheng Road in the Guangzhou Economic & Technological Development District, filed under closely-matching organization-name variants ("Limited" vs "Ltd."). That address match, plus the shared district, is why this entry treats them as one registrant rather than two unrelated companies.

The parent relationship to Jabil Inc. is corroborated beyond the bare IEEE listing: an SEC EDGAR Ex-21.1 subsidiary filing names Guangzhou entities under Jabil Circuit Inc., Jabil's own careers portal posts a Guangzhou-site job listing, and Panjiva trade records show import/export activity registered to this exact address. A Baidu Baike company profile describes the facility's manufacturing scope as computer peripherals, communications/network equipment, and information-security equipment — consistent with contract manufacturing rather than a single product line.

No specific end-product or device model has been confirmed against either prefix, which fits Jabil's role as an EMS/ODM builder for third-party client brands. No CVE, malware, or vulnerability association is on record for either prefix as of an August 2026 search.

Two caveats prevent over-claiming. First, IEEE's public OUI data carries no assignment date, so any "registered" date shown on third-party lookup sites is a database artifact, not an IEEE fact. Second, a separate Jabil legal entity, Jabil Circuit Italia S.R.L., holds its own distinct block (B8:8F:B4) that is unrelated to this Guangzhou registrant, and a "Jabil" sub-block sometimes listed on aggregator pages (70:B3:D5:73:6) sits under the shared IEEE base 70:B3:D5 — a base sub-allocated to thousands of unrelated companies, so 70:B3:D5 alone never indicates Jabil hardware.

IEEE assignment

0C:86:C7 → Jabil Circuit (Guangzhou) Limited [Confirmed] — the IEEE MA-L registry 0C86C7

IEEE assignment

B4:41:30 → Jabil Circuit (Guangzhou) Ltd. [Confirmed] — the IEEE MA-L registry B44130

Registry / block size

MA-L (24-bit OUI) for each; 2 confirmed prefixes total [Confirmed] — the IEEE MA-L registry 0C86C7, B44130

Registered address

128 Jun Cheng Road, Guangzhou Economic & Technological Development District, Guangzhou, Guangdong 510530, CN [Confirmed] — the IEEE MA-L registry 0C86C7, B44130; https://maclookup.app/macaddress/b44130

Parent company

Jabil Inc. (NYSE: JBL), publicly traded electronics manufacturing services (EMS) multinational [Confirmed] — https://www.sec.gov/Archives/edgar/data/898293/000095014404010550/g91463exv21w1.htm

Company status

active [Confirmed] — https://jobs.jabil.com/en/job/guangzhou/eeit-intern/626/90844657632

Trade-activity corroboration at this address [Confirmed] — https

//panjiva.com/Jabil-Circuit-Guangzhou-Ltd/34092223

Device types

Unknown specific end product; general manufacturing scope covers computer peripherals, communications/network equipment, information-security equipment [Likely] — https://baike.baidu.com/en/item/Jabil%20Electronics%20(Guangzhou)%20Co.,%20Ltd./34463

IEEE registration date

Unknown / not applicable — IEEE's public OUI data publishes no assignment date; third-party "registered" dates (e.g. maclookup.app) are database-scrape artifacts, not IEEE facts [Confirmed] — https://maclookup.app/macaddress/b44130

Related but distinct registrant

Jabil Circuit Italia S.R.L. holds its own separate block, B8:8F:B4, unrelated to this Guangzhou registrant [Likely] — https://www.cleancss.com/mac-lookup/B8-8F-B4

Shared-base caveat

a "Jabil" sub-block cited on aggregator pages, 70:B3:D5:73:6, sits under the shared IEEE base 70:B3:D5, which the IEEE Registration Authority sub-allocates to thousands of unrelated companies; 70:B3:D5 alone does not indicate Jabil hardware and is unrelated to this entry's two dedicated MA-L blocks

[Confirmed] — https://maclookup.app/vendors/jabil

Security history

no CVE or malware association found for 0C:86:C7 or B4:41:30 as of an August 2026 search across general search engines and CVE/security-advisory sources; negative finding, not an exhaustive database check [Unknown] — https://maclookup.app/macaddress/b44130