MAC Address Lookup

Si14 SpA 00:21:F3

00:21:F3 is a 24-bit MA-L MAC address block registered to Si14 SpA in IT.

Vendor

Si14 SpA

MA-L · 24-bit
00:21:F3

Unicast · Universally administered (U/L bit clear)

Matched prefix
00:21:F3
Match
MA-L assignment
Address range
00:21:F3:00:00:00 – 00:21:F3:FF:FF:FF
Addresses in block
16,777,216
Country
IT
Organization address
Via Tommaseo 77 Padova PD IT 35131
First registered
Jun 18, 2008

Formats

  • Plain hex 0021F3
  • Colon-separated 00:21:F3
  • Hyphen-separated 00-21-F3
  • Cisco dot notation 0021.F3

Prefix lineage

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

  1. M31 SpA Jun 18, 2008
  2. Si14 SpA Jun 23, 2009