- Prefix
- D4:C9:3C D4-C9-3C D4C9.3C
- Block type
- MA-L (16,777,216 addresses)
- Address range
- D4:C9:3C:00:00:00 – D4:C9:3C:FF:FF:FF
- Organization
- Cisco Systems, Inc
- Registered address
- 80 West Tasman Drive, San Jose CA 94568, US
- Country
- United States (US)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up D4:C9:3C:00:00:00
Cisco Systems, Inc holds 1112 blocks in total: see all. Source: IEEE Registration Authority public listing.