Inter-RIR IPv4 Transfers: What Moving Between Regions Actually Means
A reader-friendly analysis of 2026 inter-RIR IPv4 transfers, regional movement, portability, registry state and operator checks.
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Running a network
44 articles
IPv4 Has a Lifecycle: What Registry Data Can and Cannot Show
A plain-language guide to the IPv4 lifecycle: transfers, reuse, routing, RPKI, leasing, history and what registry data cannot show.
Registry-State Export: How to Make Internet Number Records Recoverable
What registry-state export means, why RDAP alone is not enough, and how authenticated records support continuity for IPv4, IPv6 and ASNs.
What Does Proof of Control Mean for an IP Address?
Proof of control for an IP address is action-specific: separate registry records, routing, RPKI, contracts and audit evidence before changing a running network.
Why Clear Operational Records Matter in IP Address Leasing
Leased IP space spans holders, users, routes, RPKI and reverse DNS. Clear records keep responsibility legible through provider changes and lease endings.
What Happens When a Business Loses Its Public IP?
A public IP connects DNS, routing, email, security rules and partner trust. Losing it can break digital services long after a replacement address is assigned.
When an IPv4 Provider Fails: What Leased IPv4 Depends On
Leased IPv4 can keep routing while control, renewal and migration paths fail. Learn what to verify before provider failure becomes a business continuity incident.
When a Registry Record Changes Without Warning: A Practical Response
An unexpected registry change can affect routing, security, customers and the evidence of control. Use this response path to separate a bad record from a bad route and prepare a real exit.
Network Identity for Cloud, Hosting and Telecom Providers
How IP addresses, ASNs, routing, registry records and reputation shape continuity, trust and accountability for cloud, hosting and telecom providers.
Why Buying IPv4 Addresses May Not Give Companies the Control
Buying IPv4 addresses does not do the work of keeping customers connected. Explore Lu Heng’s case for an identity that can continue when providers change.
IPv4 Continuity Is a Business Dependency, Not a Networking Detail
For cloud, hosting and enterprise operators, IPv4 continuity reaches customer access, security controls, reputation and revenue. The first step is to map the dependency before a registry or provider change makes it visible.
IPv4 Continuity Is More Than Owning an Address Block
Buying an IPv4 block may answer one ownership question. Continuity also depends on registration, routing, reputation, provider relationships and the ability to change coordinators without losing the network identity customers rely on.