ABB Switzerland Ltd. — 2 prefixes (MA-L)

A MAC address beginning 00:03:2C or 00:12:93 belongs to ABB Switzerland Ltd., the Swiss operating subsidiary of the ABB industrial-technology group, and typically appears on drives, power-control, or uninterruptible power supply (UPS) equipment built at ABB's Swiss sites. Two independent IEEE MA-L (24-bit) blocks are registered to this entity, reflecting an active manufacturer with multiple product lines rather than a single-purpose registration.

The 00:12:93 block traces to ABB's Quartino, Ticino manufacturing site — heritage of Newave Energy Holding SA, a transformerless double-conversion UPS pioneer founded in 1993 that ABB acquired in March 2012 and fully rebranded by 2014 — now home to the PowerValue UPS line. The 00:03:2C block's registered address, Dept. ATEP, Austrasse, likely corresponds to ABB's Baden/Turgi site cluster, where System Drives, Medium Voltage Drives, and Traction Converters departments operate.

ABB's WebPro SNMP card for the PowerValue UPS family carries three CVEs disclosed in 2026, including a CVSS 8.8 authentication bypass (CVE-2025-4676); a separate CODESYS-runtime flaw (CVE-2022-4046, also CVSS 8.8) affects ABB drive product lines associated with the Baden/Turgi departments. Neither advisory names a device tied to these exact OUIs as of an August 2026 search, so treat the security link as product-family level, not device-confirmed.

IEEE's registry stores no assignment date for either block, so any third-party date-registered figure is a database artifact, not an IEEE fact. A third org-name variant, ABB Switzerland Inc, appears only in a Wireshark-derived vendor list against a sub-slice of the shared 00:50:C2 base; that base is IEEE-administered, not ABB-owned, and no registry row corroborates ABB holding the sub-block as of an August 2026 check, so it stays unconfirmed.

IEEE assignment

00:12:93 → "ABB Switzerland Ltd.", registered Via Luserte Sud 9, Quartino, CH 6572 [Confirmed] — the IEEE MA-L registry 001293

IEEE assignment

00:03:2C → "ABB Switzerland Ltd", registered Dept. ATEP, Austrasse, CH (no city/postcode published) [Confirmed] — the IEEE MA-L registry 00032C

Registry / block size

MA-L (24-bit OUI) × 2 independent blocks; plus 9 MA-S (36-bit) sub-allocations to "ABB" at Fulachstrasse 150, Schaffhausen, CH 8200 — sub-slices of the shared bases 70:B3:D5 and 8C:1F:64, not exclusive ABB ownership of either base [Confirmed] — the IEEE MA-S registry (keys 8C1F646D0, 70B3D5C47, 70B3D5080, 8C1F64B24, 8C1F64852, 8C1F64FB1, 70B3D5892, 8C1F64718, 8C1F6432A)

HQ / country

Switzerland (CH); no single HQ address in the OUI registrations — two distinct manufacturing-site addresses are recorded across the two MA-L blocks [Confirmed] — the IEEE MA-L registry 001293, the IEEE MA-L registry 00032C

Company status

active; direct subsidiary of ABB Ltd (ABB Group), ~110,000 employees, dual-listed SIX Swiss Exchange / Nasdaq Nordic Stockholm [Confirmed] — https://en.wikipedia.org/wiki/ABB, https://new.abb.com

Device types

uninterruptible power supplies, motor and medium-voltage drives, traction converters, power-control equipment [Confirmed] — https://new.abb.com/ups/systems/single-phase-ups/powervalue-31-11-t, https://global.abb/group/en/about/history/heritage-brands/newave

Notable products

PowerValue transformerless UPS family (single- and three-phase, ~7.5-40 kVA) [Confirmed] — https://new.abb.com/ups/systems/single-phase-ups/powervalue-31-11-t

Site heritage

the 00:12:93 Quartino address is the former Newave Energy Holding SA site (Ticino UPS pioneer founded 1993), acquired by ABB in March 2012 and rebranded to ABB by 2014 [Confirmed] — https://global.abb/group/en/about/history/heritage-brands/newave

Site department detail

the 00:03:2C "Dept. ATEP" address likely maps to ABB's Baden/Turgi site cluster (System Drives, Medium Voltage Drives, Traction Converters departments); the "ATEP" code itself was not independently confirmed

[Likely] — https://www.aihk.ch/fileadmin/dokumente/2_netzwerk/wissenstransfer_kontakte/2019.05.09_RG_Baden_Plan-ABB-Turgi.pdf

Registration dates

Unknown — IEEE's public MA-L schema (Registry, Assignment, Organization Name, Organization Address) has no date column for either block; no third-party "date registered" value should be attributed to IEEE [Confirmed absence] — the IEEE MA-L registry

Unconfirmed third variant

"ABB Switzerland Inc" appears only in the Wireshark-derived the Wireshark manufacturer database list against sub-block 00:50:C2:1A:2/36; the parent base 00:50:C2 is registered to "IEEE Registration Authority" (shared/administered, not ABB-owned) and no the IEEE MA-S registry or the IEEE MA-M registry row corroborates this sub-slice under ABB as of an August 2026 check

[Unknown] — the Wireshark manufacturer database, the IEEE MA-L registry 0050C2, the IEEE MA-S registry, the IEEE MA-M registry

Security context (product family, not device-confirmed)

ABB's WebPro SNMP Card for the PowerValue UPS line carries CVE-2025-4675 (CVSS 6.5), CVE-2025-4676 (CVSS 8.8, authentication bypass), and CVE-2025-4677 (CVSS 6.5), all fixed in firmware 1.1.8.p [Confirmed at product-family level] — https://www.cisa.gov/news-events/ics-advisories/icsa-26-132-06

Security context (product family, not device-confirmed)

ABB drives running the CODESYS Runtime System (e.g. ACS880, LV DC drives) carry CVE-2022-4046 (CVSS 8.8) [Confirmed at product-family level] — https://nvd.nist.gov/vuln/detail/CVE-2022-4046

Related vendors

sibling ABB-suffixed OUI entries in this dataset — vendor-abb-robotics, vendor-abb-power-systems-power-generation, vendor-abb-global-industries-and-services-private, vendor-abb-abb-sace-div, vendor-abb-cewe-control, vendor-abb-power-td [Confirmed] — this site's own enrichment records

Analyst note

two independent MA-L OUI grants plus address-specific, currently active product lines place this vendor well above a single-OUI-shell registration; the 9 MA-S sub-allocations are legitimate ABB sub-slices of shared bases, never evidence that ABB owns 70:B3:D5 or 8C:1F:64 themselves [Confirmed]