network-v1/registry-ips/000-000-000-000--32--iana-special.md

0.0.0.0/32 — This host on this network

Who is this IP range?

IANA identifies 0.0.0.0/32 as This host on this network special-purpose IPv4 space. This is a protocol or standards classification, not an assertion that one company owns or operates every address in the range.

Special-purpose properties

• Range: 0.0.0.0/32
• Name: This host on this network
• RFC/reference: [RFC1122], Section 3.2.1.3
• Allocation date: 1981-09
• Termination date: N/A
• Valid as source: True
• Valid as destination: False
• Forwardable: False
• Globally reachable: False
• Reserved by protocol: True
• Checked: 2026-07-22

Interpretation

The properties above are copied from the authoritative IANA special-purpose registry. Footnote markers are retained because exceptions and qualifications matter. Routing or operational claims require separate current evidence.

Source

• IANA IPv4 Special-Purpose Address Registry, checked 2026-07-22