ARIN Policy
Minimum allocation /20 (ISPs)
- Efficient utilization of /21; multihomed; agree to renumber
OR
- Efficient utilization of /20 from upstream (no renumbering required)
Minimum PI assignment /20 (end-user policy)
- Show need for a /20 (25% imm. 50% within 1 yr)
No smaller portable address space assignments to end-users