Home/Blog/Registry & RIPE

Registry & RIPE

Guides on IPv4 and IPv6 resources, routing security, IP reputation, BYOIP and running infrastructure.

11 articles in Registry & RIPE

Registry & RIPE

Cross-Border IPv4 Transfer Timeline by RIR Region

Cross-border IPv4 transfers require coordination between regional internet registries, resource holders, and recipients. The timeline depends on registry procedures, document verification…

24 Sep 2026 · 3 min read
Registry & RIPE

Running your own LIR or using a sponsor: how to decide

Running your own RIPE NCC LIR or using a sponsoring LIR: what each lets you do, the obligations and costs involved, and the questions that decide it.

2 Sep 2026 · 4 min read
Registry & RIPE

Sponsoring LIR explained: what changes when you move PI space or an ASN

What a sponsoring LIR does for PI space and ASNs, what changes when you switch sponsor, and how to move without disrupting your routing.

27 Aug 2026 · 4 min read
Registry & RIPE

RIPE database objects every resource holder should understand

A plain guide to the RIPE Database objects behind your IP space and ASN: inetnum, aut-num, route, mntner, organisation, role, person and domain.

11 Aug 2026 · 4 min read
Registry & RIPE

Getting an ASN in the RIPE region: what you need before you apply

What to prepare before requesting an AS number in the RIPE region: the routing rationale, peers, IP space, database objects and technical readiness.

27 Jul 2026 · 4 min read
Registry & RIPE

How to Handle Company Name Changes in RIR Records

A company name change does not always mean that ownership of IPv4 resources has changed. If the registry still shows the old legal name, later address transfers can become harder because…

23 Jul 2026 · 4 min read
Registry & RIPE

How to Document IPv4 Ownership for Internal and External Audits

IPv4 ownership documentation helps organizations prove control over address resources and maintain accurate records during reviews. Internal teams use this information for asset management…

8 Jul 2026 · 3 min read
Registry & RIPE

How IRR Records Support Clean IPv4 Transfers

An IPv4 transfer changes the party that controls an address resource, but it does not automatically update every routing record associated with that prefix. If IRR still points to an old…

29 May 2026 · 4 min read
Registry & RIPE

RIPE Database Cleanup Checklist Before an IPv4 Transfer

Before an IPv4 transfer, the parties should review the RIPE Database objects connected to the resource. Old contacts, inaccessible maintainers, and obsolete routing records can create…

11 May 2026 · 4 min read
Registry & RIPE

How RIR Lock Periods Affect IPv4 Buying Strategy

IPv4 acquisition requires more than finding available address space. Buyers must consider regional internet registry rules, transfer restrictions, and timing requirements before completing…

18 Feb 2026 · 3 min read
Registry & RIPE

What Is IPv4 Reassignment and How Does It Work?

IPv4 resources are managed through structured allocation systems that define how address space is assigned between organizations and users. Reassignment allows existing IP resources to be…

27 Jan 2026 · 3 min read