CIS Technology Inc. — 2 prefixes (MA-L)

A MAC address beginning with 00:01:0A or 00:20:18 belongs to CIS TECHNOLOGY INC., a Taiwan-based (Taipei Hsien) manufacturer of dial-up and early broadband modems, ISDN adapters, and LAN/Ethernet networking hardware. Devices carrying these prefixes are consumer/SOHO-era communications equipment — PCMCIA and internal PCI modems, "Winmodems," ISDN terminal adapters, and Ethernet switching gear — not modern IoT or industrial-control devices; this hardware generation predates the CVE/security-advisory era for consumer network equipment.

CIS Technology was founded in 1984 and, per Taiwan business-directory listings, later carried NT$5,480,750,000 in registered capital, with a product line spanning optical-media drives (CD-ROM/CD-R/DVD) alongside modems, ADSL and cable modems, LAN adapters, and Ethernet switches, including OEM work for HP and Compaq.

Trade-press coverage from the late 1990s identifies CIS Technology as one of Taiwan's "Big 3" analog-modem makers (alongside GVC Corp. and Askey Computer Corp.), together accounting for roughly three-quarters of the country's modem output at the time — independent corroboration that this was a real, substantial manufacturer rather than a shell registrant.

The same coverage describes CIS undergoing a 1999 financial restructuring in which its largest shareholder, the New Magnitude Group (a construction concern), was removed from the board and replaced by a group led by A-Trend Technology Co. and Pacific Wire & Cable Co. No source located as of an August 2026 search confirms the company's current operating status (active, merged, renamed, or dissolved) following that restructuring — recorded here as Unknown rather than assumed either way.

Two separate IEEE MA-L blocks (00:01:0A and 00:20:18) registered under the identical organization name "CIS TECHNOLOGY INC." at two Taipei Hsien addresses is itself a signal of genuine hardware production consistent with the trade-press modem-manufacturer history, rather than a bare single-OUI shell registration. Driver/product listings (e.g. driverguide.com) independently corroborate specific shipped modem models — PCMCIA, ISDN, PCI Winmodem, and SmartLink-chipset devices — under the CIS Technology name, giving device-class corroboration beyond the registry entries alone.

IEEE's public OUI registry does not publish assignment dates, so no registration date can be attributed to either block; third-party aggregator maclookup.app shows its own database "initial registration" and "last updated" timestamps for these two prefixes, which are database artifacts, not IEEE facts.

No CVE or security advisory referencing CIS Technology hardware was found as of an August 2026 search — plausible given the age and consumer-modem nature of the product line, but recorded here as a searched-and-not-found negative rather than an assumption of a clean record.

IEEE assignment

2 prefixes (00:01:0A, 00:20:18) → CIS TECHNOLOGY INC., registered at two Taipei Hsien, TW addresses [Confirmed] — the IEEE MA-L registry 00010A, the IEEE MA-L registry 002018

Registry / block size

MA-L (24-bit OUI) for both assignments; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) blocks found under this organization name [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry searches

HQ / addresses

16F, No. 75 Hsin Tai Wu Road, Taipei Hsien 221, TW (00:01:0A); FL. 9-1, No. 94, Pao Chung Rd., Taipei Hsien, TW (00:20:18) — two distinct addresses under the identical registrant name, consistent with an office relocation between the 1998 and 2000 registrations

[Confirmed] — the IEEE MA-L registry 00010A, the IEEE MA-L registry 002018

Company founding / capital

Founded 1984; registered capital NT$5,480,750,000 listed in a Taiwan business directory [Confirmed] — https://business.com.tw/cop/com.php?id=gi9o2zqhjq38h1z

Industry history

Identified in 1999 EE Times coverage as one of Taiwan's "Big 3" analog-modem makers (with GVC Corp. and Askey Computer Corp.), together ~75% of national modem output; underwent a 1999 board/ownership restructuring after financial difficulty, with largest shareholder New Magnitude Group removed and replaced by a group led by A-Trend Technology Co. and Pacific Wire & Cable Co. [Confirmed, per search-returned article content] — https://www.eetimes.com/modem-makers-travel-rough-road-in-taiwan/

Device types

PCMCIA modems, ISDN/fax modems, PCI "Winmodems" (incl. SmartLink and Motorola SM56 chipsets), ADSL/cable modems, LAN/Ethernet switching hardware, CD-ROM/CD-R/DVD optical drives (OEM for HP and Compaq) [Confirmed] — https://www.driverguide.com/driver/company/CIS_Technology/Modem-ISDN/index.html, https://business.com.tw/cop/com.php?id=gi9o2zqhjq38h1z

Notable products

CIS Technology 3314CM2 (PCMCIA modem), RM-3314E (data/fax modem), RSS1003-HCF (PCI modem), WS-5614EV / WS-5614PM3 (Winmodem) [Confirmed] — https://www.driverguide.com/driver/company/CIS_Technology/Modem-ISDN/index.html

Current operating status

Unknown — no source located as of an August 2026 search confirming the company is still active, was merged/renamed, or dissolved after its 1999 restructuring; treat "active" status as unconfirmed rather than assumed [Unknown] — searched, not found

Registration date

Unknown — IEEE's public OUI data (the IEEE MA-L registry) publishes no assignment/registration date. Third-party aggregator maclookup.app shows its own "Initial registration" (00:01:0A: "09 November 2000"; 00:20:18: "22 April 1998") and "Last updated: 17 November 2015" timestamps for both prefixes — these are maclookup.app database artifacts, not IEEE facts, and are not attributed to IEEE here

[Confirmed] — https://maclookup.app/macaddress/00010A, https://maclookup.app/macaddress/002018

Security note

No CVE or security advisory referencing CIS Technology hardware found as of an August 2026 search; the product line (1990s–2000s dial-up/ISDN modems and early broadband modems) predates the era in which consumer network hardware routinely receives CVE tracking [Unknown / searched, not found]

Per-prefix product mapping

Unknown which specific product line uses which of the two OUI blocks; identification is vendor-level only [Unknown] — no per-OUI product mapping found in any source

Related vendors

none identified [Unknown]

Analyst note

Two independent MA-L blocks under an identical registrant name, corroborated by independent trade-press coverage identifying CIS Technology as a historically significant ("Big 3") Taiwan modem manufacturer plus specific shipped-product driver listings, meet the bar for a substantive vendor entry rather than a bare single-OUI shell registration — notwithstanding that the company's current (2026) operating status remains unconfirmed as of an August 2026 search.