MAC address vendor

00:1B:45 identifies an IEEE assignment to ABB AS, Division Automation Products

Primary prefix
00:1B:45
Block
MA-L

Summary

// what this is
ABB AS, Division Automation Products is registered to MAC prefix 00:1B:45 in the IEEE OUI database. When a device's MAC address begins with 00:1B:45, that block was registered by ABB AS, Division Automation Products — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A prefix match identifies the IEEE registry assignment; it does not establish a particular device or deployment. This 24-bit prefix has 24 suffix bits (16,777,216 possible values); the first-byte Group and Local bits are both zero and remain fixed for an exact prefix match. Possible suffix values are not a device or shipment count. RFC 7042 describes 48-bit MAC identifier structure and Group and Local bits.
[ 01 ] — Context

About this vendor.

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

A MAC address beginning with 00:1B:45 matches an IEEE MA-L assignment registered to ABB AS, Division Automation Products. This identifies the registry name associated with the prefix; it does not establish the device type, a specific product, the current operator, or whether an address is in use.

The prefix is 24 bits long, leaving 24 bits for suffix values. Its first-byte Group and Local bits are both zero. For an exact 00:1B:45 prefix match, those bits are fixed; changing either bit produces a different prefix. The 16,777,216 possible suffix values are an address-space count, not a count of devices or shipments.

The IEEE record indicates Norway. Assignment dates are unavailable in these IEEE CSV records. RFC 7042 explains the structure of 48-bit MAC identifiers and the significance of Group and Local bits.

Company
ABB AS, Division Automation Products [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
00:1B:45 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Norway [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device types
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Assignment dates
Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:1B:45MA-L
[ 03 ] — Related

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