IPv4-uitputting

Name: IPv4 Address Exhaustion Tracker
Creator: WorldIP.io
License: https://creativecommons.org/licenses/by/4.0/

De 32-bit IPv4-adresruimte heeft een harde limiet van 4.294.967.296 adressen. IANA heeft zijn laatste ongereserveerde /8 toegewezen op 3 februari 2011.

85.85%

van IPv4-ruimte toegewezen

Allocated

3,687.36M

3,687,362,740

Unallocated / reserved

607.60M

607,604,556

Total IPv4

4,294.97M

2³²

By Regional Internet Registry

RIR	IPs managed	Share of allocated	Prefixes
ARIN	1,645.46M	44.6%	224,234
APNIC	889.47M	24.1%	60,657
RIPE	854.25M	23.2%	251,180
LACNIC	181.93M	4.9%	14,483
AFRINIC	116.16M	3.2%	14,923

Timeline

1981 — IPv4 defined in RFC 791.
1993 — Classful addressing replaced with CIDR (RFC 1519) to slow exhaustion.
Feb 2011 — IANA allocates the last /8 to APNIC. Top-level free pool exhausted.
Apr 2011 — APNIC enters "last /8" policy (1 /22 per LIR).
Sep 2012 — RIPE NCC enters last /8 policy.
Jun 2014 — LACNIC free pool exhausted.
Sep 2015 — ARIN free pool exhausted.
Nov 2019 — RIPE NCC runs out (single /22 allocations only from waitlist).
Ongoing — All new allocations come from returns, transfers, or waitlists. Secondary market prices ~$25–50/IP.