IPv4 leasing VPS platforms technical overview

IPv4 leasing VPS platforms refers to the practice where VPS providers use leased IPv4 address blocks instead of owned address space to assign public IPs to virtual servers. This model allows VPS platforms to scale IP capacity, manage regional demand, and remain compliant with registry policies without long-term IPv4 ownership. It is commonly used where CGNAT is not acceptable and public IPv4 addressing is required.

What is IPv4 leasing VPS?

IPv4 leasing VPS is an operational model where a VPS or cloud provider temporarily uses IPv4 address space that is contractually leased from an address holder. The IPv4 blocks remain registered to the original holder in the RIR database, while the VPS platform receives authorization to announce and use the addresses for customer workloads.

Key characteristics:

IPv4 ownership does not change
Lease duration is defined contractually
Addresses are announced via BGP by the VPS provider or an upstream
Registry objects such as inetnum, route, and ROA are aligned with the lease

How IPv4 leasing works for VPS platforms

In a VPS environment, IPv4 leasing integrates directly with existing network operations:

A leased IPv4 prefix, commonly /24 or larger, is assigned to the platform
LOA is used to authorize routing and announcements
RPKI ROAs are configured to match the announcing ASN
The VPS provider assigns individual IPs to VMs via their provisioning system
Reverse DNS is delegated or managed as part of the lease

Operationally, the process is similar to using owned space, with the difference being contractual and registry-level control.

Technical diagram showing IPv4 leasing for VPS platforms, including address holder ownership, leased IPv4 block usage, BGP announcements, and RIR registry alignment. — This diagram depicts IPv4 leasing in VPS platforms, where IPv4 address space remains registered to the original holder while being contractually leased to a VPS provider, which announces the prefixes via BGP and aligns inetnum, route, and ROA objects for operational use during the lease term.

Common use cases

IPv4 leasing VPS models are used in several infrastructure scenarios:

VPS providers offering public IPv4 per instance without NAT
Hosting providers running short-term promotions or burst capacity
ISPs delivering VPS or IaaS services without sufficient legacy IPv4
Cloud operators needing region-specific IPv4 pools
Infrastructure resellers separating IP supply from compute capacity

These use cases typically require clean address history, correct geolocation, and predictable routing behavior.

Explained for network engineers

From a network engineering perspective, IPv4 leasing VPS introduces several considerations:

Prefix size must align with minimum routable blocks, typically /24
ROA max-length should be explicitly defined to avoid accidental invalids
BGP announcements must match authorized ASNs listed in the LOA
rDNS delegation should be automated to avoid provisioning delays
Abuse handling remains operationally the responsibility of the VPS platform

Leased IPv4 space behaves identically to owned space at the data plane level. The differences exist at the policy, registry, and lifecycle management layers.

For infrastructure teams:

Clean IPv4 blocks with full RPKI, rDNS, and LOA support are commonly used in ISP and hosting environments.

Summary

IPv4 leasing VPS platforms use leased address space instead of owned IPv4
The model enables scalable public IPv4 assignment without CGNAT
Routing, RPKI, and rDNS must be correctly aligned with the lease
VPS, hosting providers, and ISPs commonly rely on this approach
Operational behavior matches owned IPv4 at the network level