MAC Address Lookup

Single Digits 3A:F5:21

3A:F5:21 is a 24-bit CID MAC address block registered to Single Digits in US.

Vendor

Single Digits

CID · 24-bit Likely randomized
3A:F5:21

Unicast · Locally administered (U/L bit set)

Matched prefix
3A:F5:21
Match
CID assignment
Address range
3A:F5:21:00:00:00 – 3A:F5:21:FF:FF:FF
Addresses in block
16,777,216
Country
US
Organization address
4 Bedford Farms Drive, Suite 210 Bedford NH US 03110
First registered
Sep 7, 2018

Formats

  • Plain hex 3AF521
  • Colon-separated 3A:F5:21
  • Hyphen-separated 3A-F5-21
  • Cisco dot notation 3AF5.21

Prefix lineage

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

  1. BSG Wireless Sep 7, 2018
  2. Single Digits Jun 24, 2020