APNIC: A base fee (AUD 1,295 for 2026) multiplied by a fixed factor (1.32) raised to a power based on how much address space is held. IPv4 and IPv6 are calculated separately, and the larger amount applies.
ARIN: A 9-tier flat-fee structure (from 3X-Small to 3X-Large) based on the amount of IPv4, IPv6, and ASNs held.
RIPE NCC: LIR (Local Internet Registry) members pay a flat annual fee (EUR 1,800) regardless of how much IPv4/IPv6 space they hold. A separate one-time sign-up fee applies for new members.
LACNIC: IPv4 allocations are capped at /22, with a category-based fee structure. As far as we could confirm, the smallest category (up to /22) costs around USD 1,000.
AFRINIC: IPv4 allocations are capped at /22, with a 7-tier category structure. We were unable to retrieve exact figures from the official site, so please check the official page for details.