Cobalt Digital Inc. — 2 prefixes (MA-L)

A MAC address beginning AC:83:F0 or 00:23:02 belongs to Cobalt Digital Inc., an Illinois-based manufacturer of professional broadcast and Pro-AV video-processing equipment. Both are IEEE MA-L (24-bit) OUI assignments registered directly to the company, not shared or sub-allocated blocks, so either prefix reliably identifies genuine Cobalt Digital hardware such as SDI/IP converters, routers, or multiviewers.

Cobalt Digital, founded 1997 and headquartered in Champaign, IL, builds SMPTE ST 2110/IPMX gateways, mini-converters, signal processors, and multiviewers under product lines including TOPAZ, PACIFIC, INDIGO, SAPPHIRE, blueCORE, and ARIA. The company remains active, with new product announcements as recent as the 2026 NAB Show, corroborated by independent broadcast trade press including TV Technology and The Broadcast Bridge.

The two OUI blocks were filed under slightly different legal-name and address strings — AC:83:F0 to "Cobalt Digital Inc." at 2506 Galen Drive, Champaign, IL, and 00:23:02 to "Cobalt Digital, Inc." at 2406 East University Avenue, Urbana, IL — consistent with the same operating company updating its address on file over time rather than two unrelated entities. No MA-M, MA-S, IAB, or CID assignments were found for the company.

No CVE, security advisory, or malware/botnet association is recorded for Cobalt Digital or its products as of an August 2026 search; the only similarly-named hits are the unrelated "Cobalt Strike" penetration-testing tool and "Cobalt.io" bug-bounty company. IEEE publishes no registration date for either OUI block — third-party "date registered" values seen on lookup sites are database artifacts, not IEEE facts.

IEEE assignment

2 prefixes → Cobalt Digital Inc., registered Champaign, IL / Urbana, IL, US [Confirmed] — the IEEE MA-L registry AC83F0, 002302

Registry / block size

MA-L (24-bit OUI) x2; no MA-M, MA-S, IAB, or CID assignments found [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / country

2506 Galen Drive, Champaign, IL 61821, US (registry address on AC83F0); 2406 East University Avenue, Urbana, IL 61802, US (registry address on 002302) [Confirmed] — the IEEE MA-L registry

Company status

active [Confirmed] — cobaltdigital.com; TV Technology NAB 2026 coverage

Device types

SDI/IP conversion, ST 2110/IPMX gateways, multiviewers, mini-converters, signal processors [Likely] — cobaltdigital.com/product-lines/

Notable products

TOPAZ, PACIFIC, INDIGO, SAPPHIRE, blueCORE, UltraBlue MV-SW, ARIA [Confirmed] — cobaltdigital.com

Verified prefixes

AC:83:F0, 00:23:02 (both MA-L, Cobalt Digital) [Confirmed] — the IEEE MA-L registry AC83F0, 002302

Registration dates

Unknown — IEEE's public OUI data publishes no assignment/registration date; third-party "date registered" values (e.g. maclookup.app) are database artifacts, not IEEE facts [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv, maclookup.app

Security history

no CVE, advisory, or malware/botnet association found as of an August 2026 search; near-name collisions are "Cobalt Strike" (Fortra) and "Cobalt.io", both unrelated products [Likely] — WebSearch, NVD

Related vendors

none identified as affiliated; CobaltRay Co., Ltd (F0D3A7) is a separate, unrelated company despite the similar name [Confirmed] — the IEEE MA-L registry F0D3A7

Analyst note

a MAC starting AC:83:F0 or 00:23:02 indicates Cobalt Digital-registered hardware, since both are standalone MA-L assignments rather than shared/sub-allocated IEEE bases; do not conflate with CobaltRay Co., Ltd on F0D3A7 [Confirmed] — the IEEE MA-L registry