IPv4 Hub is an automated leasing platform where verified IP owners list available subnets and approved tenants lease them instantly. Complete your network profile, browse available blocks, and get provisioned automatically — RPKI, rDNS, and SWIP ready to configure from day one. No back-and-forth. No waiting. Just IPv4 space, on demand.
The same marketplace serves organisations that need addresses and organisations sitting on addresses they do not announce. The steps differ; the verification behind them does not.
Owners are checked against the RIR record for the block they are listing. A listing is not published until that check passes.
The LOA your upstream will ask for is generated and signed on activation, not chased over email a week later.
ROA and IRR route objects are created for your ASN where the registry supports it, so RPKI-validating networks accept the announcement.
Every listed and leased block is checked against 25 live blocklists. Owner and tenant are both emailed on a new listing.
Where the owner has connected their registry API, authorisation and routing objects are created as the lease activates. Every listing says which mode applies before you commit.
These registries have no suitable provisioning API, so our team files the records by hand. Same documents, same routing objects, just a person doing it.
Tenants pay the rate the owner set, and nothing on top. Owners pay 15% of the monthly lease value, and only once a block is actually leased and paid for. Blacklist monitoring of anything transacted here is included for both sides.
Address reputation is what makes leasing risky for an owner and painful for a tenant. RepRadar checks monitored blocks against 25 live DNS blocklists, querying authoritative nameservers directly rather than through public resolvers — which is how it avoids the false positives that make most blacklist tools untrustworthy.
Spamhaus, Barracuda, SpamCop, PSBL, Mailspike, SpamRATS, DroneBL and more. Dead zones are deliberately excluded.
A block map showing exactly which addresses are listed, on which zone, with the return code.
Email the moment an address in a monitored block is newly listed, to both the owner and the tenant.
The registered holder grants you the right to announce and use a block for a fixed term. The registration never moves — it stays in the owner's name at their RIR — and you receive a signed Letter of Authorization proving you may route it.
Where the owner has connected their registry API, authorisation and routing objects are created within minutes of the lease starting. LACNIC and AFRINIC blocks, and any owner who has chosen manual provisioning, are handled within 48 hours.
Nothing to list, nothing to verify. IPv4 Hub takes 15% of the monthly lease value, and only once a block is actually leased and the tenant has paid.
A /24. Anything smaller cannot be announced independently on the public internet because most networks filter announcements longer than a /24.
Every block is checked against 25 live DNS blocklists before it is published and continuously afterwards. Both the owner and the tenant are emailed when an address is newly listed.
Browsing the marketplace is open to everyone. An account is only needed when you are ready to lease or to list.