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Policy Block 1: Recommended Draft Policy ARIN-2025-7#

ARIN 58 Public Policy and Members Meeting digest Program Adjacent pick 22–23 October 2026

Abstract Slides Recording

Lily Botsyoe (Advisory Council; co-presented with Leif Sawyer)

Play the recording: Policy Block 1: Recommended Draft Policy ARIN-2025-7

  • Why: A concrete IPAM rule fix — the sizing table for IPv6 end-user allocations — that any org planning IPv6 address structure should know is changing.
  • What: Fixes a math loophole in NRPM 6.5.8.2: the "75% of /48s in a prefix" rule accidentally qualified single-site organizations for a /44, contradicting the examples. The revision makes a single site = /48, with 2–12 sites = /44, 13–192 = /40, 193–3,072 = /36, 3,073–49,152 = /32, and renames "assignment" to "allocation" throughout to match current ARIN practice.
  • How: Pure text clarification; staff review says no operational change, implementable in 3 months, strong community support.
  • Where applicable: Any ARIN-region org requesting IPv6 end-user allocations; the nibble-boundary site-count table is the durable takeaway for IPv6 address planning.