What Information IPv4 Sellers Must Provide for Verification
As demand for IPv4 addresses continues to rise, the transfer market has become more active and heavily regulated. Buyers, brokers, and regional internet registries (RIRs) require thorough verification to ensure that every IPv4 transaction is legitimate, compliant, and secure. For sellers, understanding the documentation and information required for verification is crucial. It not only speeds up approval but also builds trust and prevents disputes during the transfer process.
Whether selling a /24 block or an entire allocation, IPv4 sellers must provide clear, accurate, and complete information to meet industry and RIR standards. This article outlines the essential verification requirements IPv4 sellers must prepare before initiating a transfer.
Proof of IPv4 Ownership
The most important verification step is confirming that the seller legally owns the IPv4 block. Sellers must provide evidence such as:
- RIR allocation records showing the block assigned to their organization
- WHOIS data that matches the legal entity name
- Official correspondence from ARIN, RIPE NCC, APNIC, AFRINIC, or LACNIC
- Historical documentation if the block was acquired before modern RIR systems
Ownership proof eliminates ambiguity and ensures buyers can safely route the IP space after transfer.
Company Registration and Legal Identity
RIRs require that IPv4 transfers occur only between legally recognized entities. Sellers must provide:
- Business registration certificates
- Legal entity name and address
- Government-issued identification for authorized signatories
- Corporate authorization letters
Accurate legal documentation prevents delays and guarantees that the correct organization is listed in registry updates.
IP Block Details and Technical Information
Sellers must supply detailed information about the IPv4 block being sold, including:
- Exact subnet (e.g., 198.x.x.x/24)
- Total number of addresses
- RIR region of registration
- Any previous transfers involving the block
- Geolocation status and history
Clear block details help buyers assess routing compatibility, geolocation considerations, and long-term usability.
Blacklist and Reputation Reports
To ensure the IPv4 block is clean and safe for deployment, buyers expect:
- Blacklist reports from major DNSBL and RBL providers
- Spam history checks
- Email reputation reports
- Malware and botnet activity scans
A clean block significantly increases value and reduces the risk of deliverability issues.
If issues exist, sellers may need to resolve them before the transfer.
Routing and Usage History
Routing transparency is critical for validation. Sellers must provide:
- Past BGP announcements
- ASNs previously associated with the block.
- Routing consistency reports
- Any history of hijacking or misuse
Accurate routing history prevents future conflicts and ensures the block can be announced safely after transfer.
RIR Transfer Requirements and Documentation
Each RIR has its own rules, but most require:
- Signed transfer forms
- Justification documents (if required by the region)
- Up-to-date organizational records
- Payment of transfer fees
Preparing these documents early helps streamline RIR approval.
Seller Contact Information and Authorization
To avoid fraudulent transfers, sellers must verify authorized contacts, including:
- Administrative and technical email addresses
- Phone numbers for verification calls
- Name of the person authorized to sign transfer agreements
- Official company domain for communication
This ensures that both buyers and RIRs interact only with verified representatives.
About IPv4Hub.net
For sellers who want a smooth, secure, and well-documented transfer process, IPv4Hub.net provides professional brokerage support. The platform verifies IP space for ownership, routing history, blacklist status, and registry accuracy before listing it for buyers. IPv4Hub.net handles communication with RIRs, ensures all documentation meets compliance standards, and guides sellers through each step of the verification and transfer process. With transparent procedures, trusted reputation checks, and human-powered support, IPv4Hub.net helps organizations sell IPv4 blocks safely and efficiently.
Sellers who prepare the correct documentation in advance can dramatically reduce transfer delays and maximize the value of their IPv4 assets. Understanding the verification requirements ensures compliance, improves transaction speed, and builds trust with buyers and brokers, leading to successful and secure IPv4 transfers.