MAC address vendor

Lucent Technologies — 5 prefixes (MA-L)

Primary prefix
00:05:86
Block
MA-L
Status
Ceased operations

Summary

// what this is
Lucent Technologies is registered to MAC prefix 00:05:86 and 4 more in the IEEE OUI database. When a device's MAC address begins with 00:05:86, that block was registered by Lucent Technologies — the OUI identifies the maker of the network hardware, which is not always the brand on the device. Lucent Technologies has ceased operations, but the registration remains on record with IEEE.
// analyst note
Five OUIs across four divisional addresses plus one prefix with a named, corroborated product line and a citable CVE — substantive multi-division registrant, not a bare single-OUI shell.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High

A MAC address beginning with 00:05:86, 00:30:6D, 00:60:1D, 00:60:D2, or 00:D0:77 belongs to hardware manufactured by Lucent Technologies Inc., the AT&T equipment-manufacturing arm that became an independent company in the mid-1990s. The best-documented use is 00:60:1D, found on Lucent's ORiNOCO/WaveLAN 802.11b wireless networking cards from the late 1990s and early 2000s.

Lucent split from AT&T on 1996-09-30, becoming a standalone public company, then spun off Avaya in 2000 and Agere Systems in 2001 before merging into Alcatel-Lucent on 2006-12-01. Lucent Technologies no longer exists as an independent company.

The five OUI assignments trace to different internal business units rather than a single address. Holmdel, NJ (the Client Access Business Unit, a legacy Bell Labs/AT&T telecom campus) covers 00:60:1D and 00:D0:77; Concord, MA covers 00:30:6D; Alameda, CA (1701 Harbor Bay Parkway, the wireless-LAN division) covers 00:05:86; and Hsinchu, Taiwan (Lucent Technologies Taiwan Telecommunications Co., Ltd.) covers 00:60:D2. That divisional spread corroborates a large, multi-division original registrant rather than a shell company.

Only 00:60:1D has confirmed product-level corroboration: it identifies ORiNOCO/WaveLAN wireless cards, which carry CVE-2001-0160, a predictable-WEP-IV weakness — a legacy issue tied to now-deprecated WEP encryption rather than an active current threat. The device type for the other four prefixes is Unknown beyond their divisional address.

IEEE publishes no assignment or registration date for any of these five OUIs. Third-party lookup records carry a 2015-11-17 "updated" field on some of the assignments, which is a database refresh timestamp, not an IEEE registration date, and must not be presented as one.

IEEE assignments
5 MA-L prefixes → Lucent Technologies / LUCENT TECHNOLOGIES / LUCENT TECHNOLOGIES TAIWAN TELECOMMUNICATIONS CO., LTD. [Confirmed] — the IEEE MA-L registry (IEEE-sourced cache)
Prefix list with registered address
00:05:86 → 1701 Harbor Bay Parkway, Alameda, CA 94502, US; 00:30:6D → 300 Baker Avenue Ste #100, Concord, MA 01742-2168, US; 00:60:1D → 101 Crawfords Corner Rd, Holmdel, NJ 07733, US; 00:60:D2 → #2 Innovation Road II, Hsinchu, TW; 00:D0:77 → Client Access Business Unit, Holmdel, NJ 07733, US
[Confirmed] — the IEEE MA-L registry
Registry / block size
MA-L (24-bit OUI); 5 IEEE-assigned prefixes, no published per-company total [Confirmed] — standards-oui.ieee.org/oui/oui.csv
HQ / country
no single HQ across these assignments — registered addresses span Alameda CA, Concord MA, Holmdel NJ (US), and Hsinchu (Taiwan) [Confirmed] — the IEEE MA-L registry
Company status
defunct as an independent entity; AT&T spinoff effective 1996-09-30; spun off Avaya (2000) and Agere Systems (2001); merged into Alcatel-Lucent 2006-12-01 [Confirmed] — en.wikipedia.org/wiki/Lucent_Technologies
Device types
wireless LAN cards (ORiNOCO/WaveLAN, confirmed for 00:60:1D only); telecom/client-access equipment inferred for 00:60:1D and 00:D0:77 by shared business-unit address; device type Unknown for 00:05:86, 00:30:6D, 00:60:D2 [Confirmed for 00:60:1D; Unknown for the rest] — en.wikipedia.org/wiki/ORiNOCO
Notable products
ORiNOCO/WaveLAN 802.11b wireless PC cards [Confirmed] — en.wikipedia.org/wiki/WaveLAN
Verified sample prefixes (all MA-L, Lucent Technologies / Taiwan subsidiary)
00:05:86, 00:30:6D, 00:60:1D, 00:60:D2, 00:D0:77 [Confirmed] — the IEEE MA-L registry
Security note
CVE-2001-0160 (predictable WEP IVs) affects ORiNOCO/WaveLAN cards using the 00:60:1D prefix; legacy WEP-era vulnerability, not an active current threat [Confirmed] — github.com/advisories/GHSA-mgcx-f88w-qgv2
Date caveat
IEEE's public OUI data publishes no assignment/registration date for any of these prefixes; third-party maclookup.app records carry a 2015-11-17 "updated" field that is a database refresh timestamp, not an IEEE fact, and is not recorded here as a registration date
[Confirmed] — api.maclookup.app/v2/macs/00601D
Related vendors
Avaya (spun off 2000), Agere Systems (spun off 2001), Alcatel-Lucent (successor via 2006-12-01 merger) [Confirmed] — en.wikipedia.org/wiki/Lucent_Technologies
Analyst note
five OUIs spread across four distinct divisional addresses (US and Taiwan), plus one prefix (00:60:1D) with a named, corroborated product line and a citable CVE — this is a substantive, well-documented multi-division registrant, not a bare single-OUI shell registration.
[ 02 ] — OUI prefixes

Assignments by IEEE.

5
// registered prefixes5
  1. 00:05:86MA-L
  2. 00:30:6DMA-L
  3. 00:60:1DMA-L
  4. 00:60:D2MA-L
  5. 00:D0:77MA-L
[ 03 ] — Related

Keep digging.