MAC Address Lookup

Second Rule LLC 00:12:3C

00:12:3C is a 24-bit MA-L MAC address block registered to Second Rule LLC in US.

Vendor

Second Rule LLC

MA-L · 24-bit
00:12:3C

Unicast · Universally administered (U/L bit clear)

Matched prefix
00:12:3C
Match
MA-L assignment
Address range
00:12:3C:00:00:00 – 00:12:3C:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
4119 Walnut Street Philadelphia PA US 19104
First registered
Sep 2, 2004

Formats

  • Plain hex 00123C
  • Colon-separated 00:12:3C
  • Hyphen-separated 00-12-3C
  • Cisco dot notation 0012.3C

Prefix lineage

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

  1. IP3 Networks, Inc. Sep 2, 2004
  2. Second Rule LLC Apr 9, 2007