MAC address vendor

Aiphone co.,Ltd — MAC prefix identifies an IEEE registry assignment

Primary prefix
00:0B:AA
Block
MA-L

Summary

// what this is
Aiphone is registered to MAC prefix 00:0B:AA in the IEEE OUI database. When a device's MAC address begins with 00:0B:AA, that block was registered by Aiphone — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The company history documents intercom products and related product categories, but no supplied evidence maps any of them to this prefix.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  3 sources  ·  How this page is checked

A MAC address beginning 00:0B:AA matches an IEEE MA-L assignment registered to Aiphone co.,Ltd. The prefix identifies the registry record; it does not establish which device made the address, whether it is deployed, or the device’s current vendor or security status.

The supplied company history describes Aiphone as an intercom manufacturer founded in Nagoya in 1948. It records the company name changing to AIPHONE CO., LTD. in 1959, and documents product categories including apartment systems, nurse call, and integrated security and communication systems. These catalog details describe the company; the supplied material does not map them to this MAC prefix.

00:0B:AA is a 24-bit prefix, leaving 24 address bits, or 16,777,216 possible suffix values. That is a mathematical range, not a count of devices or shipments. The prefix’s first octet is 00: its Group bit is 0 and Local bit is 0. These bits are fixed for an exact prefix match; changing either produces a different prefix. A captured address matching all 24 prefix bits supports the assignment match, but cannot identify a specific product.

Registry match
Aiphone co.,Ltd — IEEE MA-L assignment 00:0B:AA [Confirmed]
What a match establishes
The address begins with the assigned 24-bit prefix; it does not identify a specific device or product [Confirmed]
Country
Japan, as indicated in the IEEE assignment record [Confirmed]
Company
Aiphone co.,Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
00:0B:AA [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Japan [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Industry
Intercom systems manufacturing [Confirmed] — https://www.aiphone.net/about/history/
Notable products
Intercom systems; apartment systems; nurse call systems; integrated security and communication systems [Confirmed] — https://www.aiphone.net/about/history/
Device types
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Website
https://www.aiphone.net/about/history/ [Confirmed] — https://www.aiphone.net/about/history/
Assignment date
Unavailable in this IEEE CSV record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:0B:AAMA-L
[ 03 ] — Related

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