BGP /24 coverage of total IPv4 space
Announced in BGP
1 795 031 040 addr
41.79%
Not announced
2 499 936 256 addr
58.21%
↳ technical / special-use (not meant to be announced)
592 643 328 addr
23.71%
↳ routable but not announced
1 907 292 928 addr
76.29%
— of total IPv4 space
44.41%
— of announceable space (total − tech/reserved)
51.52%
Context
Total IPv4 /24 blocks
16 777 216 /24
Reserved + tech /24 (0/8, 10/8, 127/8, 224–255/8, 100.64/10, 169.254/16, 172.16/12, 192.168/16, …)
2 315 269 /24
13.80%
Of those, announced anyway (bogon leaks)
256 /24
0.01%