MAC address vendor

Aitexin Technology Co., Ltd — MAC prefix identifies a registry assignment

Primary prefix
30:B5:F1
Block
MA-L

Summary

// what this is
Aitexin Technology is registered to MAC prefix 30:B5:F1 in the IEEE OUI database. When a device's MAC address begins with 30:B5:F1, that block was registered by Aitexin Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The /24 prefix has 24 suffix bits and 16,777,216 possible suffix values. For this exact prefix, the first-octet Group and Local bits are both zero; changing either bit yields a different prefix. Possible suffix values are not a device or shipment count. A match establishes a registry assignment only.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  2 sources  ·  How this page is checked

A MAC address beginning 30:B5:F1 matches an IEEE MA-L assignment registered to Aitexin Technology Co., Ltd; the record does not identify a device category or product. The listed assignment is 30:B5:F1 (/24), with one prefix in the supplied projection.

For this prefix, the first octet is 30 hexadecimal. Its Group bit and Local bit are both zero, so a literal 30:B5:F1 match has those bits fixed. Changing either bit produces a different prefix; bit variation is not part of this exact prefix match. RFC 7042 describes the Group and Local bits in MAC identifiers.

The /24 leaves 24 suffix bits, allowing 16,777,216 possible suffix values. This is a mathematical address space size, not a count of devices, shipments, or addresses observed in use. A match supports the registry-assignment identification only; it does not establish a particular device, operating system, current legal identity, or security state. The supplied record indicates China.

Registry match
Aitexin Technology Co., Ltd, MA-L assignment 30:B5:F1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device category
Unknown; the supplied evidence does not map a device category to this exact prefix [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Company
Aitexin Technology Co., Ltd [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefixes
30:B5:F1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
China [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device types
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Industry
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Notable products
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Website
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Organization status
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Related vendors
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Historic prefix
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 30:B5:F1MA-L
[ 03 ] — Related

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