- Prefix
- 00:19:77 00-19-77 0019.77
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 00:19:77:00:00:00 – 00:19:77:FF:FF:FF
- Organization
- Extreme Networks Headquarters
- Registered address
- 2121 RDU Center Drive, Morrisville NC 27560, US
- Country
- United States (US)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 00:19:77:00:00:00
Extreme Networks Headquarters holds 73 blocks in total: see all. Source: IEEE Registration Authority public listing.