| CIDR Length | CIDRs Assigned to Date | Total Assigned /48s |
|---|---|---|
| /16 | 1 | 4,294,967,296 |
| /17 | 1 | 2,147,483,648 |
| /18 | 0 | 0 |
| /19 | 3 | 1,610,612,736 |
| /20 | 26 | 6,979,321,856 |
| /21 | 14 | 1,879,048,192 |
| /22 | 37 | 2,483,027,968 |
| /23 | 8 | 268,435,456 |
| /24 | 79 | 1,325,400,064 |
| /25 | 11 | 92,274,688 |
| /26 | 19 | 79,691,776 |
| /27 | 23 | 48,234,496 |
| /28 | 202 | 211,812,352 |
| /29 | 16,385 | 8,590,458,880 |
| /30 | 197 | 51,642,368 |
| /31 | 161 | 21,102,592 |
| /32 | 32,407 | 2,123,825,152 |
| /33 | 56 | 1,835,008 |
| /34 | 57 | 933,888 |
| /35 | 120 | 983,040 |
| /36 | 1,696 | 6,946,816 |
| /37 | 1 | 2,048 |
| /38 | 2 | 2,048 |
| /39 | 3 | 1,536 |
| /40 | 1,960 | 501,760 |
| /41 | 12 | 1,536 |
| /42 | 24 | 1,536 |
| /43 | 12 | 384 |
| /44 | 1,065 | 17,040 |
| /45 | 44 | 352 |
| /46 | 60 | 240 |
| /47 | 162 | 324 |
| /48 | 14,660 | 14,660 |
| Allocated /48s Total | 32,218,581,736 | |
| Total of /48s in 2000::/3 | 35,184,372,088,832 | |
| % of 2000::/3 utilized | 0.09 |