B8:99:19 identifies a registry assignment to 7signal Solutions, Inc
Summary
- // what this is
- 7signal Solutions is registered to MAC prefix
B8:99:19in the IEEE OUI database. When a device's MAC address begins withB8:99:19, that block was registered by 7signal Solutions — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The 24-bit prefix fixes the first three octets; the remaining 24 bits yield 16,777,216 possible suffix values, not a device or shipment count. For the literal prefix, the first-byte Group and Local bits are both 0. A prefix match identifies a registry assignment, not a specific device or product.
About this vendor.
A MAC address beginning B8:99:19 matches the IEEE MA-L assignment recorded to 7signal Solutions, Inc. This identifies the registry holder associated with the prefix; the supplied evidence does not identify a device category or a particular product using it.
The assignment is 24 bits long, so matching requires the first three octets to equal B8:99:19. The remaining 24 bits allow 16,777,216 possible suffix values. That is a mathematical address-space count, not a count of devices, products, or shipments.
For this exact prefix, the first byte is B8 (hexadecimal): its Group bit is 0 and its Local bit is 0. These bit values are fixed for addresses matching the literal prefix. Changing either bit changes the prefix and does not describe variation within this assignment. RFC 7042 explains the interpretation of these MAC address bits and prefix assignments. The registry record indicates the country as US; it does not establish deployment location or current organizational status.
- Registry assignment
B8:99:19is assigned to 7signal Solutions, Inc [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Matching boundary
- The first 24 bits, or three octets, must match; the remaining 24 bits have 16,777,216 possible suffix values [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Address bits
- For this literal prefix, the first-byte Group bit is 0 and Local bit is 0 [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Company
- 7signal Solutions, Inc [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
B8:99:19[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- US [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown
- Organization status
- Unknown
- Industry
- Unknown
- Notable products
- Unknown
- Website
- Unknown
- Related vendors
- Unknown
- Historic prefix
- Unknown