Robert Bosch JuP1 — 3 prefixes (2× MA-L, 1× MA-M)

"Robert Bosch JuP1" is a site-specific IEEE registrant tied to Bosch's Ciudad Juárez, Chihuahua manufacturing plant in Mexico — distinct from the parent "ROBERT BOSCH GmbH" registrant string, which separately holds several other OUI blocks in this repository. The registrant holds three IEEE-published MAC-prefix assignments at an identical registered address (Robert Bosch 1150, Juárez, Chihuahua 32557, MX): two 24-bit MA-L blocks (10:66:50 and 70:F7:4F) and one 28-bit MA-M block (88:C9:B3:7). "JuP1" most plausibly abbreviates "Juárez Planta 1" (Juárez Plant 1), consistent with Bosch's known practice of registering OUIs under site/plant-specific legal-entity strings rather than always under the parent corporate name. Independent customs and trade-data aggregators (Tendata, Datamyne) show "ROBERT BOSCH JUP1 LOT" and "ROBERT BOSCH JUP1 LOG" as active import/export entity records tied to the same Juárez address, corroborating JuP1 as a real operating internal Bosch designation rather than a shell registration. The Juárez plant itself is one of Bosch's largest electronic-control-device manufacturing sites in North America, producing automotive electronics — airbag sensors, ABS units, electric power steering controllers, sunroof motors, and window-lifter modules — for major automakers, though no vendor datasheet or product page was found citing these three OUIs directly, so device-level (as opposed to site-level) corroboration remains an open gap.

IEEE assignments

3 blocks registered to "Robert Bosch JuP1" — two MA-L (10:66:50, 70:F7:4F) + one MA-M (88:C9:B3:7); no MA-S match [Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (no match)

Registered address

Robert Bosch 1150, Juárez, Chihuahua 32557, Mexico — identical on all three registry rows [Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry, the IEEE MA-M registry

Registrant identity vs. parent

distinct site-specific string from "ROBERT BOSCH GmbH" (which holds 6 other MA-L blocks in this repo: 00:60:34, 44:36:59, 44:D7:7E, BC:90:3A, CC:DD:58, FC:D6:BD); "JuP1" most plausibly abbreviates "Juárez Planta 1" — an interpretation, not a confirmed IEEE-published expansion

[Likely] — https://maclookup.app/macaddress/88c9b37, https://hwaddress.com/company/robert-bosch-jup1/

Site identity

address matches Bosch's Ciudad Juárez, Chihuahua manufacturing plant, one of Bosch's largest electronic-control-device manufacturing sites in North America, producing automotive electronics (airbag sensors, ABS units, electric power steering controllers, sunroof motors, window-lifter modules) for Ford, Chrysler, and Nissan [Confirmed] — https://www.bosch.com.mx/nuestra-compania/bosch-en-mexico/ciudad-juarez-av-robert-bosch/, http://www.maquilaportal.com/index.php/169-el-diario/1046-bosch-inaugurates-a-new-plant-in-ciudad-juarez

Company-substance corroboration

"ROBERT BOSCH JUP1 LOT" and "ROBERT BOSCH JUP1 LOG" appear as active import/export entity records in independent customs/trade-data aggregators, tied to the same Juárez address — corroborates JuP1 as a real operating designation, not a shell [Likely] — https://www.tendata.com/en/buyer/robert-bosch-jup1-lot-USAN6828771f1ac8a5109fe74e85fa5e85ec.html, https://www.tendata.com/en/buyer/robert-bosch-jup1-log-USAN970ee8014b2c73ad19ef0767948940ee.html, https://www.datamyne.com/importer/32959199/robert-bosch-jup--lot--tx-

Registration dates

Unknown / not applicable — IEEE's public MAC-prefix CSVs (the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry) publish no date column; a third-party aggregator surfaced dates (25 Feb 2021 for 88:C9:B3; 08 Jul 2022 for 10:66:50) but these are database artifacts, not IEEE facts, and are not recorded here

[Confirmed absence of an IEEE date] — the IEEE MA-L registry, the IEEE MA-M registry

Device-type / product mapping

Unknown at the device-model level — no vendor datasheet or product page cites these three OUIs directly; only plant-level function (automotive-electronics manufacturing) is documented [Unknown]

Security context

Unknown — no CVE, botnet report, or incident found tied specifically to these three blocks; only generic OUI-agnostic MAC-layer threat classes (spoofing, flooding, EUI-64 leakage) apply site-wide to any vendor [Confirmed absence of findings]

IEEE primary-source cross-check

direct fetch of standards-oui.ieee.org returned HTTP 418 (anti-bot) this session; findings rest on the cached registry CSVs plus third-party aggregator corroboration, not a fresh IEEE re-fetch [Unknown]