MAC Address Lookup

Physical Security Interoperability Alliance 1A:90:21

1A:90:21 is a 24-bit CID MAC address block registered to Physical Security Interoperability Alliance in US.

Vendor

Physical Security Interoperability Alliance

CID · 24-bit Likely randomized
1A:90:21

Unicast · Locally administered (U/L bit set)

Matched prefix
1A:90:21
Match
CID assignment
Address range
1A:90:21:00:00:00 – 1A:90:21:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
65 Washington St. Suite 170 Santa Clara CA US 95050
First registered
Oct 20, 2023

Formats

  • Plain hex 1A9021
  • Colon-separated 1A:90:21
  • Hyphen-separated 1A-90-21
  • Cisco dot notation 1A90.21