Accuenergy (CANADA) Inc holds two MA-L (24-bit OUI) blocks — 30:7A:57 and EC:C3:8A — both registered to the same Scarborough, Ontario address, 22 Howden Rd, M1R 3E4. The company (which styles its brand "AccuEnergy") is a Canadian manufacturer of industrial power and energy metering equipment, founded in 1998, with a corporate operating address in Toronto, Ontario. Its product line spans multifunction power meters (Acuvim, AcuRev, AcuDC series), current transformers, building-automation sensors, and cloud energy-management software. The OUIs do not belong to consumer networking gear: the MAC-bearing hardware is the network-interface side of these meters — chiefly the AXM-NET, AXM-NET2, AXM-WEB, and AXM-WEB2 Ethernet/WiFi expansion modules that plug into Acuvim-series meters and speak Modbus TCP/IP, EtherNet/IP, IEC 61850, DNP 3.0, BACnet, and SNMP. So on a network these addresses identify industrial control / energy-management endpoints, not routers or switches. The security caveat is material for asset classification: the AXM-NET module has four ICS-CERT-documented, pre-authentication, network-exploitable CVEs (CVE-2014-2373, CVE-2014-2374, CVE-2016-2293, CVE-2016-2294) on Acuvim II / IIR firmware at or before 3.08, the most severe being CVE-2016-2293 at CVSS v3 8.6. Accuenergy released firmware patches for each, and current AXM-WEB2 modules add TLS 1.2 and WPA2-Enterprise support. As with all IEEE OUI data, no registration date is published — any "date registered" in third-party databases is an artifact, not an IEEE fact.
- IEEE assignment
- 2 prefixes → Accuenergy (CANADA) Inc, registered Scarborough, Ontario, CA [Confirmed] — IEEE MA-L (oui.csv lines 54 and 23726)
- Registry / block size
- MA-L (24-bit OUI); two OUI-24 blocks. No entries in MA-M (mam.csv) or MA-S (oui36.csv), so all assignments are large-block. [Confirmed] — enrichment/registries/oui.csv
- Verified prefixes (both MA-L, Accuenergy (CANADA) Inc)
- 30:7A:57, EC:C3:8A [Confirmed] — IEEE MA-L (oui.csv lines 54, 23726)
- Registry address
- 22 Howden Rd, Scarborough, Ontario, CA M1R 3E4 (identical on both assignments) [Confirmed] — IEEE MA-L
- HQ / country
- Canada (CA). Corporate operating address 440 Comstock Road, Toronto, Ontario M1L 2H6 (differs from the registry address) [Confirmed] — accuenergy.com/about-us, corroborated by thomasnet.com (Toronto, ON M1L 2H6)
- Company status
- active; founded 1998; industrial power/energy metering manufacturer [Confirmed] — accuenergy.com/about-us
- Device types
- network interfaces on industrial power meters — AXM-NET, AXM-NET2, AXM-WEB, AXM-WEB2 Ethernet/WiFi modules for Acuvim II-series and Acuvim L-series multifunction meters; ICS / energy-management / building-automation category, not consumer networking [Confirmed] — accuenergy.com product pages, powermeterstore.com, corroborated by microdaq.com, electro-meters.com
- Notable products
- Acuvim, AcuRev, AcuDC power-meter series; AXM-series communication modules; AcuCloud EMS software [Confirmed] — accuenergy.com
- Networking protocols
- Modbus TCP/IP, EtherNet/IP, IEC 61850, DNP 3.0, BACnet, SNMP, HTTP/HTTPS (TLS 1.2), FTP, SNTP, RSTP; WiFi modules support WPA/WPA2-Enterprise; dual-port daisy-chain topology [Confirmed] — accuenergy.com AXM-WEB2 / AXM-NET2 product pages
- Security context
- four ICS-CERT-documented CVEs on the AXM-NET module, all pre-auth network-exploitable, on Acuvim II / IIR firmware ≤ 3.08 — CVE-2014-2373 and CVE-2014-2374 (CVSS v2 7.5, ICSA-14-275-02), CVE-2016-2293 (CVSS v3 8.6, ICSA-16-105-02) and CVE-2016-2294 (mail-server password in an unprotected file). Patches released; ISO 27001 is org-level, not product-level. [Confirmed] — nvd.nist.gov CVE-2016-2293, cisa.gov ICSA-14-275-02, cisa.gov ICSA-16-105-02, cve.report/vendor/accuenergy
- Registration date
- Unknown — IEEE publishes no assignment/registration date in its OUI data (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact. [Confirmed] — standards.ieee.org/products-programs/regauth/mac
- Related vendors
- none identified
- Analyst note
- an Accuenergy OUI (30:7A:57 or EC:C3:8A) on a globally-administered address identifies an industrial power-meter network module — treat as an ICS/energy-management asset, not consumer gear, and check AXM-NET firmware against the 2014/2016 ICS-CERT advisories.