MAC address vendor

70:BD:D2 MAC Prefix — Adva Network Security GmbH Assignment

Primary prefix
70:BD:D2
Block
MA-L

Summary

// what this is
Adva Network Security is registered to MAC prefix 70:BD:D2 in the IEEE OUI database. When a device's MAC address begins with 70:BD:D2, that block was registered by Adva Network Security — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  4 sources  ·  How this page is checked

A MAC address beginning 70:BD:D2 matches an IEEE MA-L assignment registered to Adva Network Security GmbH. That identifies the registry assignment; it does not establish a particular device, product, deployment, or current operator. The supplied company history describes network security products, but does not map any product to this prefix.

This is a 24-bit prefix in a 48-bit address, leaving 24 suffix bits and 16,777,216 possible suffix values. That arithmetic describes possible values, not a device or shipment count. In the first prefix byte 70 (hexadecimal), the Group and Local bits are both zero. An exact match fixes both bits; changing either produces a different prefix. RFC 7042 explains the significance of these bits and the structure of MAC prefixes.

The company’s history says it was established as an independent company in 2022 and describes its operation as a wholly owned subsidiary under a zero-trust model. It also documents a 10 Gbit/s network access device with Ethernet encryption and 400 Gbit/s crypto-agile encryption capability. These are company-level product details, not evidence that those products use this assignment.

Prefix
70:BD:D2 (MA-L, 24 bits) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device category
Unknown; no supplied source maps a device category to this exact prefix.
Address interpretation
Group bit 0 and Local bit 0 for this prefix [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
Company
Adva Network Security GmbH [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Germany [Confirmed] — https://www.advasecurity.com/en/about-us/legal/imprint
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Total prefixes
1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Organization status
The company describes itself as a wholly owned subsidiary operating independently under a zero-trust model [Confirmed] — https://www.advasecurity.com/en/about-us/history
Industry
Network security and encryption technology [Confirmed] — https://www.advasecurity.com/en/about-us/history
Notable products and capabilities
FSP 150-XG118Pro (CSH-G) network access device with ConnectGuard Ethernet encryption; 400 Gbit/s crypto-agile encryption [Confirmed] — https://www.advasecurity.com/en/about-us/history
Device types mapped to this prefix
Unknown
Website
https://www.advasecurity.com/en/about-us/history [Confirmed]
Related vendor
Adtran Group; company history says ADVA Optical Networking became part of the group in 2022 [Confirmed] — https://www.advasecurity.com/en/about-us/history
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 70:BD:D2MA-L
[ 03 ] — Related

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