APRESIA Systems, Ltd. — 2 prefixes (MA-L)

A MAC address beginning with 00:40:66 or FC:6D:D1 belongs to APRESIA Systems, Ltd., a Japanese network-equipment manufacturer, and most plausibly identifies an Ethernet switch or optical-transmission device rather than a consumer product.

APRESIA holds two separate IEEE MA-L (/24) blocks — 00:40:66 and FC:6D:D1 — both registered to the same company name (differing only in comma punctuation) at the identical Tsukuba Network Technical Center address in Ibaraki, Japan. Two independent OUI grants tied to one identifiable, currently-operating company with a documented product line separate this vendor from a bare single-block registration.

The Apresia brand originated at Hitachi Cable, Ltd. in 2003; APRESIA Systems, Ltd. became an independent company on 2016-09-08 after spinning off from Hitachi Metals, Ltd. (now Proterial, Ltd.). ORIX Corporation acquired the company outright on 2020-11-02, and APRESIA remained active as of 2024 via a product-integration partnership with Infinera.

The company builds Ethernet switches spanning SOHO to carrier-grade — including the ApresiaLight, ApresiaNP, and Apresia13200 series — plus DWDM optical-transmission systems, sold mainly to telecom carriers, government/municipal bodies, and enterprise IT rather than consumer buyers.

No CVE is recorded in the NVD for APRESIA as of an August 2026 search; a 2014 Hitachi advisory (HIRT-PUB14005) separately confirmed the Hitachi Metals Switch Apresia series was not vulnerable to the OpenSSL Heartbleed flaw. Security searches for "Apresia" can surface unrelated results for "Apriso," a different Dassault Systèmes product with its own distinct vulnerabilities.

IEEE assignment

2 prefixes → APRESIA Systems, Ltd. / APRESIA Systems Ltd, registered at Tsukuba Network Technical Center, Ibaraki, Japan [Confirmed] — the IEEE MA-L registry (004066, FC6DD1)

Registry / block size

MA-L (24-bit OUI) × 2; no MA-M or MA-S entries found under this registrant [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry (no match), the IEEE MA-S registry (no match)

HQ / country

registry address is Tsukuba Network Technical Center, Kidamari 3550, Tsuchiura-shi, Ibaraki-ken, JP 300-0026; current corporate HQ is 8F, Metro City Tsukiji Shintomicho Bldg., 2-3-4 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan

[Confirmed] — the IEEE MA-L registry (004066, FC6DD1); apresiasystems.co.jp/english/aboutus.html

Company status

active; independent since 2016-09-08 (spun off from Hitachi Metals, Ltd.); wholly owned by ORIX Corporation since 2020-11-02 [Confirmed] — apresiasystems.co.jp/english/aboutus.html, orix.co.jp/grp/en/newsrelease/201102_ORIXE.html

Device types

L2/L3 Ethernet switches (SOHO to carrier-grade), DWDM optical-transmission systems [Confirmed] — apresiasystems.co.jp/english/ourbusiness.html

Notable products

ApresiaLight series (e.g. ApresiaLightGM352XT), ApresiaNP series, Apresia13200 series; ApresiaRM25000 (earlier Hitachi Cable America branding) [Confirmed] — prtimes.jp, hca.hitachi-cable.com

Verified sample prefixes (both MA-L, APRESIA Systems)

00:40:66, FC:6D:D1 [Confirmed] — the IEEE MA-L registry, the Wireshark manufacturer database

Registration dates

Unknown — IEEE's public the IEEE MA-L registry publishes no assignment/registration date column; third-party "first seen" dates on maclookup.app (1998-04-22 for 00:40:66, 2020-08-04 for FC:6D:D1) are database artifacts, not IEEE facts — the 1998 date predates the 2003 creation of the Apresia brand by five years

[Confirmed] — the IEEE MA-L registry (004066, FC6DD1), maclookup.app/vendors/apresia-systems

Special note

not to be confused with "Apriso" (Dassault Systèmes' DELMIA Apriso manufacturing-operations software) — a different, unrelated vendor and product with its own separate CVEs/CISA advisories [Confirmed] — csoonline.com

Related vendors

HC Networks, Ltd. (wholly owned subsidiary providing network-integration services); brand lineage traces to Hitachi Cable, Ltd. / Hitachi Metals, Ltd. (now Proterial, Ltd.) [Confirmed] — orix.co.jp/grp/en/newsrelease/201102_ORIXE.html, apresiasystems.co.jp/english/aboutus.html

Security context

no CVE recorded in the NVD for "APRESIA" as of an August 2026 search; a 2014 Hitachi advisory (HIRT-PUB14005, dated 2014-04-17) lists the Hitachi Metals Switch Apresia series as confirmed not vulnerable to the OpenSSL Heartbleed flaw (CVE-2014-0160)

[Confirmed] — services.nvd.nist.gov, hitachi.com/en/hirt/publications/hirt-pub/hirt-pub14005

CVE search completeness

based on one NVD keyword-search API query plus general web search; a Japan-specific JVN/JPCERT-CC check could not be confirmed as of an August 2026 search (a direct JVN listing-page fetch returned HTTP 404) [Unknown] — jvn.jp (404), services.nvd.nist.gov

Analyst note

two independently-registered OUI blocks at one address, plus a documented, currently-operating company with a traceable corporate lineage and named product lines, place this vendor above the bare single-OUI-registration threshold; a MAC under either prefix indicates enterprise or carrier-grade Ethernet/optical-transmission equipment, not consumer hardware

[Likely] — synthesized from apresiasystems.co.jp, orix.co.jp