BGP /24 coverage of total IPv4 space
Announced in BGP
1 781 137 408 addr
41.47%
Not announced
2 513 829 888 addr
58.53%
↳ technical / special-use (not meant to be announced)
592 643 328 addr
23.58%
↳ routable but not announced
1 921 186 560 addr
76.42%
— of total IPv4 space
44.73%
— of announceable space (total − tech/reserved)
51.89%
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%