MAC Address Lookup

IBM Corp 00:18:B1

00:18:B1 is a 24-bit MA-L MAC address block registered to IBM Corp in US.

Vendor

IBM Corp

MA-L · 24-bit
00:18:B1

Unicast · Universally administered (U/L bit clear)

Matched prefix
00:18:B1
Match
MA-L assignment
Address range
00:18:B1:00:00:00 – 00:18:B1:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
2051 Mission College Blvd Santa Clara CA US 95054
First registered
Jul 1, 2006

Formats

  • Plain hex 0018B1
  • Colon-separated 00:18:B1
  • Hyphen-separated 00-18-B1
  • Cisco dot notation 0018.B1

Prefix lineage

This prefix has changed hands. Dates are when each change was first observed in public registration data (runZero mac-tracker).

  1. Blade Network Technologies Jul 1, 2006
  2. IBM Corp Apr 15, 2011