Nokia Siemens Networks GmbH & Co. KG. — 2 prefixes (MA-L)

A MAC address beginning with 00:0F:BB or 00:40:43 belongs to Nokia Siemens Networks GmbH & Co. KG., the telecom-infrastructure joint venture between Nokia and Siemens — typically carrier-grade network gear such as mobile base stations, carrier Ethernet switches, and optical transmission equipment rather than consumer or office hardware.

Nokia Siemens Networks (NSN) was a real, large multinational venture: announced 2006-06-19, launched 2007-04-01 with roughly 60,000 employees, building mobile base stations, mobile broadband/RAN gear, carrier Ethernet switches, and core/optical network equipment. Nokia bought out Siemens' stake on 2013-08-07, and the business was renamed Nokia Solutions and Networks, then Nokia Networks on 2014-04-29 — it survives today as a Nokia subsidiary.

Two MA-L (24-bit OUI) prefixes are registered to the identical registrant name and street address in Bruchsal, Germany: 00:0F:BB and 00:40:43. No MA-M or MA-S assignments turned up under this registrant name. That pairing of two independent IEEE assignments at one address, plus the well-documented corporate history, is well past a bare single-OUI shell.

Device-type corroboration is vendor-level, not tied to either specific prefix — third-party telecom-equipment resellers and a Carrier Ethernet Edge Switch A-2200 datasheet document real hardware carrying the brand, but no packet-capture or device-identification source names a model against 00:0F:BB or 00:40:43 specifically. One historical CVE (CVE-2015-6929, XSS in @vantage Commander) is recorded under the successor "Nokia Networks" name but is not tied to hardware using either prefix. IEEE does not publish OUI registration dates; any third-party "date registered" for these prefixes is a database artifact, not an IEEE fact.

Vendor

Nokia Siemens Networks GmbH & Co. KG. [Confirmed] — the IEEE MA-L registry 000FBB, 004043

Device class

Carrier-grade telecom infrastructure — mobile base stations, carrier Ethernet switches, optical transmission gear [Likely] — https://www.tempestns.com/manufacturer/nokia-siemens-networks-gmbh-co-kg/

Registered prefixes

00:0F:BB, 00:40:43 (both MA-L, identical registrant/address) [Confirmed] — the IEEE MA-L registry 000FBB, 004043

Registered address

Werner-von-Siemens Straße 2-6, Bruchsal, Baden-Württemberg, Germany 76646 [Confirmed] — the IEEE MA-L registry 004043

Company status

Absorbed into Nokia; survives as Nokia Networks, a Nokia subsidiary since the 2013-08-07 buyout of Siemens' stake [Confirmed] — https://en.wikipedia.org/wiki/Nokia_Networks

Also seen on

Carrier Ethernet Edge Switch A-2200 and compatible optical transceivers per telecom-parts resellers — vendor-level, not per-prefix [Likely] — https://www.scribd.com/document/166244823/A-2200-Datasheet

Registration date

Unknown — IEEE's public OUI data carries no assignment/registration date field, and a third-party lookup checked for 00:0F:BB shows none either, confirming any such date elsewhere is not an IEEE fact. [Confirmed absence]

IEEE assignment

2 prefixes (00:0F:BB, 00:40:43) → Nokia Siemens Networks GmbH & Co. KG., registered Bruchsal, Baden-Württemberg, DE [Confirmed] — the IEEE MA-L registry 000FBB, 004043

Registry / block size

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

HQ / registered address

Werner-von-Siemens Straße 2-6, Bruchsal, Baden-Württemberg, Germany 76646 [Confirmed] — the IEEE MA-L registry 004043

Company status

NSN announced 2006-06-19, launched 2007-04-01 (~60,000 employees); Nokia bought out Siemens' stake 2013-08-07; renamed Nokia Solutions and Networks then Nokia Networks 2014-04-29; survives as Nokia subsidiary [Confirmed] — https://en.wikipedia.org/wiki/Nokia_Networks

Device types

mobile base stations, mobile broadband/RAN equipment, carrier Ethernet switches, core/optical network gear [Likely] — https://www.tempestns.com/manufacturer/nokia-siemens-networks-gmbh-co-kg/, https://www.scribd.com/document/166244823/A-2200-Datasheet

Notable products

Carrier Ethernet Edge Switch A-2200; Nokia Siemens Networks-compatible optical transceivers [Likely] — https://www.scribd.com/document/166244823/A-2200-Datasheet, https://www.flexoptix.net/en/supported-vendors/index/name/Nokia+Siemens+Networks-compatible

Verified prefixes (both MA-L, identical registrant/address)

00:0F:BB, 00:40:43 [Confirmed] — the IEEE MA-L registry 000FBB, 004043

Registration date

Unknown — IEEE's public OUI data publishes no assignment/registration date field for MAC prefixes [Confirmed] — the IEEE MA-L registry; https://maclookup.app/macaddress/000FBB/mac-address-details

Security context

One historical CVE recorded under the successor "Nokia Networks" name — CVE-2015-6929, cross-site scripting in @vantage Commander — not tied to hardware using either specific prefix. As of an August 2026 search, no malware or botnet association is recorded for either prefix.

[Likely] — https://nvd.nist.gov/vuln/detail/CVE-2015-6929

Related vendors

Nokia (parent since the 2013 buyout; successor brands Nokia Solutions and Networks, then Nokia Networks) [Confirmed] — https://en.wikipedia.org/wiki/Nokia_Networks

Website

Unknown — the "Nokia Siemens Networks GmbH & Co. KG." legal name was retired in the 2013-14 rename (to Nokia Solutions and Networks, then Nokia Networks); nokia.com is Nokia Corporation's site, belonging to the successor parent, not to this registrant [Unknown]

Analyst note

Two independent OUI assignments at the identical registrant/address plus a well-documented corporate history (real joint venture, acquisition, rename) place this past a bare single-OUI shell, but device-type and security corroboration remain vendor-level rather than tied to either specific prefix. [Confirmed]