IPv4 Transfer Annexes: What Businesses Must Know
IPv4 transfers have become increasingly common as organizations seek additional address space to support growing networks, cloud services, and global expansion. However, transferring IPv4 ownership is not as simple as buying a product; it requires strict documentation, verification, and regulatory compliance. Annexes and supporting documents play a crucial role in proving ownership, preventing fraud, and ensuring the transfer meets all Regional Internet Registry (RIR) requirements.
For businesses navigating this process for the first time, understanding these documents is essential to completing a smooth, secure, and compliant IPv4 transfer.
Why IPv4 Transfers Require Documentation
Because IPv4 addresses are valuable digital assets, RIRs enforce strict guidelines to maintain transparency and prevent unauthorized transactions. Documentation ensures:
- The seller is the legitimate registrant.
- The buyer meets RIR eligibility requirements.
- Transfer records match official registry data.
- Fraudulent or hijacked IP blocks cannot circulate.
- Legal compliance is maintained across jurisdictions.
Without proper documentation, a transfer can be delayed or rejected entirely.
Common IPv4 Transfer Annexes and Supporting Documents
Although the exact requirements vary depending on the RIR (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), most transfers involve a similar set of annexes and documents.
1. Proof of Ownership (Seller)
This includes documentation confirming the seller’s rights to the IPv4 range. Examples include:
- RIR registration records
- Allocation or assignment letters
- Past transfer approval documents
- WHOIS ownership validation
This step protects buyers from purchasing disputed or stolen IP space.
2. Justification of Need (Buyer)
Some RIRs require buyers to demonstrate they genuinely need the IPv4 space. Acceptable justification may involve:
- Network expansion
- Cloud service deployment
- Data center scaling
- Increased customer demand
This prevents unnecessary hoarding of address space.
3. Authorization Letters
Both parties may be required to provide:
- Letter of Authorization (LOA)
- Company representation confirmation
- Signed agreements approving the transfer
These letters verify that the individuals signing the documents have the authority to do so.
4. Corporate Documentation
RIRs often request proof of legal entity status, such as:
- Business registration certificates
- Articles of incorporation
- Valid government-issued IDs for signatories
This ensures transparent identity validation for both parties.
5. Transfer Request Forms and Annexes
Each RIR uses standardized annex forms that include:
- Subnet details
- Current registrant information
- Future registrant information
- Intended usage plans
- Compliance statements
These annexes form the core of the transfer request package.
6. Technical Documentation
Once the transfer is approved, technical documents may be required for:
- BGP announcements
- ROA (Route Origin Authorization) updates
- rDNS configuration
These ensure the IPv4 block is correctly routed and ready for operational use.
Why Proper Documentation Matters
Submitting incomplete or incorrect documentation can lead to:
- Delays lasting weeks
- Additional verification steps
- Transfer rejection
- Disputes between buyer and seller
Accurate annexes streamline communication between all parties and ensure the transfer progresses as efficiently as possible.
About IPv4Hub.net
To simplify the entire documentation process, IPv4Hub.net provides businesses with clean, verified IPv4 blocks supported by full administrative assistance. Every IPv4 range undergoes blacklist screening, ownership validation, and registry accuracy checks before delivery. IPv4Hub.net guides clients through RIR documentation, annex completion, BGP onboarding, and rDNS setup. Their human-powered support ensures secure, stress-free, and fully compliant transfers for organizations of all sizes. Learn more about IPv4 solutions here.
IPv4 transfer annexes and supporting documents are essential components of a secure and compliant transfer. They prove ownership, validate identity, justify IP usage, and ensure registry accuracy. While the process may seem complex, understanding these documents helps businesses avoid delays and protect themselves from risk.
With reliable partners like IPv4Hub.net, organizations can navigate the entire transfer process confidently, knowing every document meets regulatory standards and every IP block delivered is fully verified.