Lease an IPv4 block from InterLIR and prepare it for Microsoft Azure Custom IP Address Prefix onboarding. For qualifying ranges that meet Azure validation requirements, you can keep the same public IP space in Azure while preserving control, portability, and established reputation.
Microsoft Azure’s Custom IP Address Prefix feature lets eligible public IPv4 ranges be onboarded into an Azure subscription. Microsoft is permitted to advertise the range, and addresses derived from the prefix can be used in the same way as Azure-owned public IP address prefixes.
Choose a leased range from the InterLIR Marketplace and validate that it fits Azure Custom IP Address Prefix onboarding requirements.
InterLIR helps with IP-side preparation and documentation so the selected range is ready for Azure validation and provisioning review.
After validation, the range is provisioned as a Custom IP Address Prefix and can be commissioned for advertisement by Microsoft.
You can derive public IP prefixes and standard SKU public IPs for supported Azure resources while keeping consistent public addressing across environments.
InterLIR provides IP-side preparation, documentation, and guidance through Azure onboarding so your team can evaluate Custom IP Address Prefix rollout before production use.
Allocate public IPs derived from your custom prefix to VM network interfaces for consistent inbound and outbound addressing.
Use public IPs derived from your custom prefix with Azure Load Balancer and other supported public front-end scenarios while keeping the same external IP identity.
Choose the Azure deployment model that fits your migration, routing, and commissioning requirements for multi-region or unified rollout plans.
Use your BYOIP range for outbound NAT and other supported Azure public IP workflows while keeping known, trusted source addresses.
Preserve established IP reputation, allowlists, and recognizable public IP identity across migrations or new deployments.
Your leased IPv4 space remains portable, so you can retain the same public identity even if infrastructure plans change later.
For a typical /24 block, leasing IPv4 addresses through InterLIR and preparing them for Azure Custom IP Address Prefix onboarding can materially reduce monthly public IP costs.
Microsoft Azure
Qualified InterLIR-leased IP ranges can be prepared for Azure Custom IP Address Prefix onboarding, helping reduce the recurring cost of provider-owned public IPv4 addresses while preserving address continuity.
Compare the cost of renting IPs from your infrastructure provider vs. leasing IPv4 addresses from InterLIR, including annual savings.
Prices are based on current average lease rates. Final cost depends on block availability and lease terms.
Our team will help you select the right IP block, prepare the required documentation, and guide you through Azure Custom IP Address Prefix onboarding.
