- Prefix
- 00:80:EF 00-80-EF 0080.EF
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:80:EF:00:00:00 – 00:80:EF:FF:FF:FF
- Organization
- RATIONAL
- Registered address
- 3320 SCOTT BOULEVARD, SANTA CLARA CA 95054, US
- Country
- United States (US)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:80:EF:00:00:00
RATIONAL holds 1 block in total: see all. Source: IEEE Registration Authority public listing.