What are private IP v4 address ranges (or blocks)?

Question

What are special IP v4 address ranges (Private IP Addresses that can't be used for Public Address)?

Answer 1

Global and Other Specialized Address Blocks (Special Use IPv4 Addresses According to RFC 5735)

IP/CDIR	Subnet mask	Range	Scope	Description
0.0.0.0/8	255.0.0.0	0.0.0.0 - 0.255.255.255	private network	"This" Network ([RFC1122], Section 3.2.1.3)
10.0.0.0/8	255.0.0.0	10.0.0.0 - 10.255.255.255	private network	Private-Use Networks [RFC 1918]
100.64.0.0/10	255.192.0.0	100.64.0.0 - 100.127.255.255	private network	Private network [RFC 6598]
127.0.0.0/8	255.0.0.0	127.0.0.0 - 127.255.255.255	host	Loopback [RFC1122], Section 3.2.1.3
169.254.0.0/16	255.255.0.0	169.254.0.0 - 169.254.255.255	subnet	Link Local [RFC3927]
172.16.0.0/12	255.240.0.0	172.16.0.0 - 172.31.255.255	private network	Private-Use Networks [RFC1918]
192.0.0.0/24	255.255.255.0	192.0.0.0 - 192.0.0.255	private network	IETF Protocol Assignments [RFC5736]
192.0.2.0/24	255.255.255.0	192.0.2.0 - 192.0.2.255	documentation	TEST-NET-1 [RFC5737]
192.88.99.0/24	255.255.255.0	192.88.99.0 - 192.88.99.255	Internet	6to4 Relay Anycast [RFC3068]
192.168.0.0/16	255.255.0.0	192.168.0.0 - 192.168.255.255	private network	Private-Use Networks [RFC1918]
198.18.0.0/15	255.254.0.0	198.18.0.0 - 198.19.255.255	private network	Network Interconnect Device Benchmark Testing [RFC2544]
198.51.100.0/24	255.255.255.0	198.51.100.0 - 198.51.100.255	documentation	TEST-NET-2 [RFC5737]
203.0.113.0/24	255.255.255.0	203.0.113.0 - 203.0.113.255	documentation	TEST-NET-3 [RFC5737]
224.0.0.0/4	240.0.0.0	224.0.0.0 - 239.255.255.255	Internet	Multicast [RFC3171]
240.0.0.0/4	240.0.0.0	240.0.0.0 - 255.255.255.254	n/a	Reserved for Future Use [RFC1112], Section 4
255.255.255.255/32	255.255.255.255	255.255.255.255	n/a	Limited Broadcast ([RFC 919], Section 7, [RFC 922], Section 7)
IP/CDIR	Subnet mask	Range	Scope	Description