/8 is CIDR notation, CIDR standing for ClassLESS Inter-Domain Routing. Classful network architecture died a couple of decades ago, I'm not sure the term still

/8 is CIDR notation, CIDR standing for ClassLESS Inter-Domain Routing. Classful network architecture died a couple of decades ago, I'm not sure the term still persists with people erroneously substituting class A/B/C to describe any of /24, /16, /12 or /8 IPv4 networks, sometimes as part of an RFC 1918 network, sometimes not..