Preston Industries dba PolyScience

Unique prefixes: 5

Block Size: 20475 (20.47 k)

First registration: 13 August 2012

Last updated: 12 June 2023

Types

IAB: Individual Address Blocks. Number of address 2^24 (~16 Million)

MA-S: Mac Address Block Small (previously named OUI-36, encompasses IAB Assignments). Number of address 2^12 (4096)

MAC Prefix Type Registration Date
00:50:C2:FB:2 IAB 2012-08-13
70:B3:D5:3B:5 MA-S 2017-10-28
70:B3:D5:9E:B MA-S 2016-02-18
70:B3:D5:F8:2 MA-S 2019-06-14
8C:1F:64:F0:5 MA-S 2023-06-12