Tellabs, Inc. — 3 prefixes (MA-L)

A MAC address beginning with 04:C0:9C, 00:30:D0, or 70:DD:A1 identifies networking hardware registered to Tellabs, Inc. or a closely related Tellabs corporate entity — historically a major telecommunications equipment manufacturer, and since a 2013 restructuring a supplier of Optical LAN (OLAN) systems to carrier, enterprise, government, and vendor-claimed military networks.

Tellabs was founded in 1975 by Michael Birck and five co-founders near Chicago, went public in 1980, and grew into a Nasdaq-listed (TLAB) telecom equipment company, crossing $1 billion in annual revenue by 1997 and roughly $4 billion with about 8,000 employees by 2000. It built a roughly $115 million Naperville, Illinois headquarters campus around that time, matching the registered address on two of these three prefixes.

A proposed $7.1 billion stock-swap merger with Ciena Corporation, signed June 2, 1998, was mutually terminated September 14, 1998, and never closed — Tellabs and Ciena did not merge. Tellabs later acquired Advanced Fibre Communications (2004) and WiChorus (2009). In 2013, Marlin Equity Partners bought Tellabs for roughly $891 million; its optical transport and mobility units became Coriant, and the remaining company refocused on Optical LAN gear from a new Carrollton, Texas headquarters.

Devices historically associated with the Tellabs name include the SONET-based TITAN 5500 digital cross-connect system and the 7100 DWDM/ROADM optical transport platform. Current-era Tellabs OLAN products — the 1100-series Optical Line Terminals (including the Tellabs 1150), Optical Network Terminals, and the Panorama PON Manager — are marketed for GPON/XGS-PON deployments.

One independently confirmed CVE affects this product line: CVE-2019-19148, a CVSS 9.8 critical remote command-execution flaw (CWE-78 OS command injection) in the Tellabs 1150 OLT via the TELNET/SSH -l option, published by NVD on March 20, 2020. Tellabs states its OLAN products were unaffected by the December 2021 Log4j vulnerability, and its own site describes AES-128 OLT-ONT encryption — vendor claims, not independently audited here.

IEEE assignment

3 confirmed MA-L prefixes → registrant names "Tellabs Inc." (04:C0:9C) and "Tellabs" (00:30:D0, 70:DD:A1) [Confirmed] — the IEEE MA-L registry 04C09C, 0030D0, 70DDA1

Registry / block size

MA-L (24-bit OUI) x3. This entry covers only the blocks whose registrant name slugifies to "tellabs" under the project's canonical slugifyVendor()/normaliseVendorName() (which strips whole-word "inc/corp/co/..." tokens); 3 further Tellabs-family blocks (00:A0:FF, 00:B0:C7 "Tellabs Operations, Inc."; 00:C0:9B "Tellabs Enterprise, Inc.") slugify to different sibling entries and are NOT part of this entry

[Confirmed] — the IEEE MA-L registry; this site's own tooling

HQ / country

Registry addresses are One Tellabs Center / 1415 W. Diehl Road, Naperville, IL 60563, US, and 1750 Founder's Parkway, Alpharetta, GA 30004, US; Tellabs' current public HQ (post-2013 Optical LAN business) is Carrollton, TX

[Confirmed] — the IEEE MA-L registry 04C09C, 0030D0, 70DDA1; en.wikipedia.org/wiki/Tellabs

Company status

Active, as an independent company owned by Marlin Equity Partners since a 2013 buyout, after the Optical Transport/Metro Ethernet/Mobility businesses were spun off as Coriant [Confirmed] — en.wikipedia.org/wiki/Tellabs, en.wikipedia.org/wiki/Coriant, tellabs.com

Device types

Historic — SONET/DWDM optical transport, digital cross-connect systems; Current — Optical LAN (OLAN) GPON/XGS-PON OLTs and ONTs [Confirmed] — worldwidesupply.net, statcom.net, tellabs.com

Notable products

TITAN 5500 digital cross-connect (1991); Tellabs 8000 Intelligent Network Manager; Tellabs 7100 DWDM/ROADM optical transport; Tellabs 1150 Optical Line Terminal; Panorama PON Manager [Confirmed] — worldwidesupply.net, yumpu.com, statcom.net, tellabs.com

All prefixes in this entry (complete, all MA-L)

04:C0:9C ("Tellabs Inc."), 00:30:D0 ("Tellabs"), 70:DD:A1 ("Tellabs") [Confirmed] — the IEEE MA-L registry 04C09C, 0030D0, 70DDA1

Corporate history note

A proposed $7.1B stock-swap merger with Ciena Corporation (signed June 2, 1998, amended Aug 27, 1998) was mutually terminated Sept 14, 1998, and never closed — Tellabs and Ciena did not merge [Confirmed] — photonics.com

Registration dates

Unknown — IEEE's public OUI data (the IEEE MA-L registry: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date for 04:C0:9C, 00:30:D0, or 70:DD:A1; any third-party "date registered" is a database artifact, not an IEEE fact

[Unknown] — the IEEE MA-L registry; standards-oui.ieee.org/oui/oui.csv

Known vulnerability

CVE-2019-19148 — CVSS v3.1 9.8 (Critical), CWE-78 OS command injection, remote command execution via TELNET/SSH -l in the Tellabs 1150 OLT; NVD published 2020-03-20 [Confirmed] — nvd.nist.gov/vuln/detail/CVE-2019-19148

Related vendors

Tellabs Operations, Inc. (separate OUI blocks 00:A0:FF, 00:B0:C7; SEC filings confirm it as a wholly-owned Delaware subsidiary formed via a 1992 merger) [Confirmed] — sec.gov/Archives/edgar/data/317771/000031777104000057/tlab11k.htm. Tellabs Enterprise, Inc. (separate OUI block 00:C0:9B; subsidiary-vs-trade-name status not confirmed against a primary filing) [Likely]. Both out of scope for this entry's prefix set.

Analyst note

These 3 prefixes identify genuine Tellabs-brand telecom/optical-networking hardware; they do not cover the separately-registered Tellabs Operations or Tellabs Enterprise blocks (00:A0:FF, 00:B0:C7, 00:C0:9B) — do not extend "Tellabs" OUI identification to those prefixes from this entry alone.