- Prefix
- E4:6C:21 E4-6C-21 E46C.21
- Block type
- MA-L (16,777,216 addresses)
- Address range
- E4:6C:21:00:00:00 – E4:6C:21:FF:FF:FF
- Organization
- messMa GmbH
- Registered address
- Am Stadtfeld 8, Ixleben Sachsen-Anhalt 39167, DE
- Country
- Germany (DE)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up E4:6C:21:00:00:00
messMa GmbH holds 1 block in total: see all. Source: IEEE Registration Authority public listing.