- Prefix
- 00:20:91 00-20-91 0020.91
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:20:91:00:00:00 – 00:20:91:FF:FF:FF
- Organization
- J125, NATIONAL SECURITY AGENCY
- Registered address
- 9800 SAVAGE ROAD, FT. MEADE MD 20755-6000, US
- Country
- United States (US)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:20:91:00:00:00
J125, NATIONAL SECURITY AGENCY holds 1 block in total: see all. Source: IEEE Registration Authority public listing.