- Prefix
- E4:1F:7B E4-1F-7B E41F.7B
- Block type
- MA-L (16,777,216 addresses)
- Address range
- E4:1F:7B:00:00:00 – E4:1F:7B: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 E4:1F:7B:00:00:00
Cisco Systems, Inc holds 1112 blocks in total: see all. Source: IEEE Registration Authority public listing.