Jabil is a major US-based global EMS/contract manufacturer, and its MAC footprint spans several IEEE registrant strings that should be aliased to one family: a "Jabil" parent record (3 prefixes; holds MA-M and MA-S) plus regional entities each holding a single MA-L block — "Jabil Circuit (Guangzhou) Ltd.", "Jabil Circuit Hungary Ltd.", and "Jabil Circuit de Chihuahua." Verified samples from the parent record include 20:CE:2A:2 (MA-M), 70:B3:D5:73:6 (MA-S), and C8:F5:D6:6 (MA-M); note the MA-S assignment shares the IEEE-pooled 70:B3:D5 block, so the full 36-bit prefix must be matched rather than just the first 24 bits. The registered address is St. Petersburg, Florida, with the regional entities listing China, Hungary, and Mexico addresses. These OUIs appear across a broad range of devices Jabil assembles for other brands — networking, telecom, consumer electronics, healthcare, automotive, industrial, and IoT. Jabil Circuit, Inc. renamed to Jabil Inc. in 2017. Like Foxconn and Flex, a Jabil OUI identifies the EMS assembler rather than the brand on the box. For triage, a Jabil OUI in ARP/DHCP tables identifies the EMS assembler, not the brand on the device label, so classify by other signals such as hostname or DHCP fingerprint.
- IEEE assignment
- multiple entities — "Jabil" (parent; 3 prefixes; MA-M + MA-S), "Jabil Circuit (Guangzhou) Ltd.", "Jabil Circuit Hungary Ltd.", "Jabil Circuit de Chihuahua" (each 1 MA-L) [Confirmed] — IEEE MA-L/MA-M/MA-S
- Registry / block size
- parent holds MA-M (28-bit) and MA-S (36-bit); regional Circuit entities each hold an MA-L (24-bit) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- St. Petersburg, Florida, US (parent); regional entities list China/Hungary/Mexico addresses [Likely] — maclookup.app
- Company status
- active; Jabil Circuit, Inc. renamed to Jabil Inc. in 2017 [Likely] — jabil.com
- Device types
- networking, telecom, consumer electronics, healthcare, automotive, industrial, IoT — assembled for other brands [Confirmed] — maclookup.app
- Notable products
- contract-assembled devices across many industries
- Verified prefix sample
- 20:CE:2A:2 (MA-M), 70:B3:D5:73:6 (MA-S, shares the pooled 70:B3:D5 block), C8:F5:D6:6 (MA-M) [Confirmed] — maclookup.app
- Special note
- Like Foxconn/Flex, a Jabil OUI identifies the EMS/manufacturer, not the brand on the box. The MA-S assignment shares the IEEE-pooled 70:B3:D5 block — match the full 36-bit prefix, not just the first 24 bits. The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- parent Jabil Inc. with regional Circuit subsidiaries
- Analyst note
- A Jabil OUI in ARP/DHCP tables identifies the EMS assembler, not the brand on the device label — classify by other signals (hostname, DHCP fingerprint).