IPv4 Broker vs Marketplace: When You Actually Need a Broker
This guide explains how an IPv4 address broker works, what the service can cost, and when a marketplace or lease is the better route.
Artem Kohanevich
Co-Founder & CEO at IPbnb
Last updated
Table of Contents
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An IPv4 broker is an intermediary that helps organizations buy or sell IPv4 address space. An IP broker may source blocks, check counterparties and address history, negotiate terms, coordinate escrow, and guide the parties through the relevant Regional Internet Registry, or RIR, process. For a complex purchase, that support can remove a great deal of work. For a standard lease or a transparent marketplace transaction, it may be more service than you need.
This guide explains how an IPv4 address broker works, what the service can cost, and when a marketplace or lease is the better route.
The line between an IP address broker and a marketplace is no longer clean. Some brokers publish inventory. Some marketplaces provide due diligence, escrow, and hands-on transfer support. Judge the actual service, not the label.
IPv4 broker or marketplace: the short answer
Your situation | Usually the better starting point | Why |
|---|---|---|
You need a large block or several matching blocks | IPv4 broker | A broker can search beyond public listings and coordinate a custom deal |
The buyer, seller, or address space involves more than one RIR | IPv4 broker with relevant inter-RIR experience | Policy compatibility and documentation need closer management |
Your team has never completed an IPv4 transfer | Full-service broker or managed marketplace | You need process support, not only a listing |
You want to compare standard blocks and published prices | IPv4 marketplace | Inventory and commercial terms are easier to compare |
You need temporary capacity rather than ownership | IPv4 leasing platform | A lease avoids a large upfront purchase and permanent transfer |
You already know the exact block and counterparty | Transfer support or escrow service | Full sourcing and negotiation may add little value |
This is a starting point, not a hard rule. The line between an IP address broker and a marketplace is no longer clean. Some brokers publish inventory. Some marketplaces provide due diligence, escrow, and hands-on transfer support. Judge the actual service, not the label.
What does an IPv4 broker do?
An IPv4 broker brings together a source organization with address space and a recipient organization that wants to acquire it. The broker facilitates the commercial transaction, but the relevant RIR reviews and records the transfer. A broker cannot guarantee RIR approval.
In this article, IP broker means a broker for IPv4 address space, not a broker for patents, trademarks, or other intellectual property.
A full-service IPv4 broker may handle the following work:
Stage | What the broker may do | What you should still verify |
|---|---|---|
Scoping | Define block size, RIR region, budget, timeline, and technical requirements | Whether buying is the right choice compared with leasing |
Sourcing | Search public listings and a private seller network | Whether the proposed block meets your exact routing and deployment needs |
Counterparty checks | Verify the organizations and authorized signatories | The broker's KYC or KYB standard and who receives the report |
Address checks | Review RDAP or WHOIS records, transfer eligibility, routing history, RPKI status, reputation data, and geolocation | The scope, date, and limitations of every check |
Negotiation | Help agree on price, exclusivity, timing, warranties, and release conditions | Whose interests the broker represents |
Contracts and escrow | Coordinate the purchase agreement and escrow workflow | The escrow provider, fees, inspection period, and release trigger |
RIR coordination | Prepare documents, track requests, and answer process questions | Which party must submit each request and pay each applicable fee |
Deployment support | Help with ROAs, IRR route objects, reverse DNS, and geolocation updates | Whether this work is included or sold separately |
The service scope varies widely. Some companies are true end-to-end IPv4 transfer brokers. Others mainly introduce a buyer and seller. Ask for a written scope before comparing fees.
How an IPv4 broker transaction works
For a permanent purchase, the process usually follows these stages:
Define the requirement. The buyer specifies prefix size, RIR region, budget, deployment plan, timeline, and any reputation or geolocation constraints.
Check recipient eligibility. Some RIRs require an account, documentation, or pre-approval before the recipient can receive a transfer.
Source candidate blocks. The broker searches available inventory and approaches potential sellers.
Run due diligence. The parties verify registration records, the seller's authority, transfer eligibility, routing history, RPKI status, address reputation, and relevant contract risks.
Agree on terms. The parties settle price, fees, exclusivity, warranties, deadlines, and escrow conditions.
Fund escrow. The buyer deposits the agreed funds with the escrow provider.
Submit the transfer request. The source and recipient complete the steps required by the relevant RIR or RIRs.
Confirm the registry update. After approval, the RIR records the recipient as the new registered holder of the address space.
Release payment and prepare routing. Escrow releases the funds under the agreed conditions. The recipient then completes any required RPKI, IRR, reverse DNS, routing, and geolocation work.
The exact documents and order depend on the RIR, the type of address space, and whether the transaction is within one registry or between compatible registries. RIPE NCC, for example, requires a transfer agreement signed by authorized representatives. RIPE NCC does not charge a separate fee for processing a resource transfer, although commercial, escrow, legal, membership, or sponsoring LIR costs still apply.
An LOA is not a universal ownership-transfer document. A Letter of Authorization is mainly used to authorize routing or another operational action. It is especially relevant to leasing, BYOIP, and cases where a network announces space on behalf of the registered holder.
Buying and leasing are different transactions
This distinction matters because the words broker, marketplace, and provider are often used for both.
Buying IPv4 addresses | Leasing IPv4 addresses |
|---|---|
The RIR records an approved permanent transfer to the recipient | The registered holder normally keeps the address space |
The buyer pays a large upfront price | The lessee pays a recurring fee for a defined term |
The buyer controls the resource after transfer, subject to RIR policy | The contract defines the lessee's use and routing rights |
Escrow commonly protects the transfer payment | Billing, deposits, or platform payment rules vary |
Transfer documentation is central | LOA, ROA, IRR, abuse handling, and routing setup are central |
If you only need capacity for a project, a region, or a limited period, leasing IPv4 addresses may be simpler than buying. Our guide to how IPv4 leasing works explains the technical and operational flow.
How much does an IPv4 broker charge?
There is no standard IPv4 broker fee. Pricing depends on the block size, region, complexity, service scope, and which party pays.
The practical problem is not the headline rate. It is that the headline rate is rarely the whole number. A quoted 5% commission sits alongside escrow fees, document preparation, currency conversion, and post-transfer technical work that may or may not be included. Ask for the total, in writing, before you compare two brokers against each other.
Public fee schedules show several models:
Fee model | How it works | What to ask |
|---|---|---|
Percentage commission | The broker receives a percentage of the sale value | Is the percentage based on the gross price, and does it change by block size? |
Per-address fee | The fee is calculated for every address transferred | Is there a minimum charge? |
Flat fee | One fixed amount covers a defined service | What happens if the transfer needs extra work? |
Seller-paid fee | Commission is deducted from the seller's proceeds | Does the buyer still pay escrow, banking, or transfer costs? |
Buyer-paid fee | The buyer pays the broker directly or through a price markup | Is the underlying block price visible? |
Success fee | The broker is paid only if the transaction closes | Which events count as a completed transaction? |
Some publicly posted seller commissions start near 3% for large blocks and rise toward 8% or 10% for smaller transactions. That is a market example, not a universal rate. Other providers use flat or per-address pricing, and some do not publish brokerage fees at all.
Ask for the total transaction cost, including:
Broker commission or markup
Escrow and payment fees
Legal and document fees
RIR, membership, or sponsoring LIR fees where applicable
Due diligence charges
Currency conversion and bank fees
RPKI, IRR, reverse DNS, or geolocation support after the transfer
For a current estimate of the address space itself, use the IPv4 pricing calculator and read the latest IPv4 address price analysis.
IPv4 broker vs IPv4 marketplace
The old distinction was simple: a broker provided a managed private service, while a marketplace only published listings. Today many providers use a hybrid model.
Factor | Traditional IPv4 broker | Self-service marketplace | Managed marketplace or hybrid platform |
|---|---|---|---|
Inventory | Public and private sourcing | Listed inventory | Listed inventory plus assisted sourcing |
Pricing | Usually negotiated | Usually visible or auction-based | Visible, quoted, or both |
Main contact | Dedicated broker | Platform workflow | Platform workflow plus human support |
Due diligence | Usually included, but scope varies | May be the buyer's responsibility | Often built into listing or transaction review |
Negotiation | Broker-led | Direct, fixed-price, or auction | Depends on the transaction |
RIR support | Usually hands-on | Varies | Usually available |
Speed | Depends on sourcing and RIR readiness | Can be fast when a suitable block is already listed | Depends on verification, inventory, and RIR readiness |
Best fit | Large, private, or complex purchases | Standard transactions with experienced teams | Buyers who want visibility and practical support |
A marketplace is not automatically faster, and a broker is not automatically safer. Speed and risk depend on verified inventory, ready counterparties, correct documents, escrow terms, and the RIR process.
IPbnb combines visible marketplace options with transaction support for buying, leasing, and selling. Buyers can acquire verified IPv4 blocks with due diligence, escrow protection, and RIR coordination. For a broader view of provider models, compare IPv4.Global alternatives and InterLIR alternatives.
Which route fits your situation
A broker is worth the commission when the difficult part is finding the block or getting it across the line. That means large or unusual requirements that public inventory does not cover, transfers that cross RIR regions and have to satisfy two policy sets at once, negotiations where early disclosure of your identity would move the price, and transactions complicated by legacy space, corporate restructuring, disputed signing authority, or a hard migration deadline. It also means teams that have never completed a transfer, where the commercial agreement, registry process, escrow flow, and technical deployment are four workstreams nobody is currently tracking.
On confidentiality, be realistic about what a broker can offer. Early-stage discretion is achievable. Complete anonymity is not: the broker, the escrow provider, the counterparty, and the RIR all need identifying information at different points.
Legacy resources deserve particular care, because old or stale records create openings for hijacking and fraud. See our analysis of hijacking risks in legacy IPv4 space.
A marketplace or a lease is usually enough in the opposite conditions. If you need a standard /24, /23, or /22 and suitable verified inventory is already listed, sourcing adds little. If procurement needs a visible number before approval, published pricing beats a negotiated quote. If the requirement is short-term or likely to change, compare control and cash flow in our buy vs lease guide before committing to a purchase. If you hold unused space and want recurring income rather than a permanent sale, you can monetize IPv4 blocks instead - the economics are set out in selling vs leasing IPv4.
And if sourcing and negotiation are already done because you know the counterparty, you may only need legal, escrow, and transfer support. Ask providers whether they sell those services separately.
How to choose an IPv4 address broker
The strongest credibility signal is not a logo or the word certified. It is a clear, recent record of completing the type of transaction you need.
Ask these questions before signing:
Which party do you represent? If the broker works for both sides, ask how conflicts are disclosed and managed.
Which RIR transfers have you completed recently? Request examples that match your transfer path and resource type.
What is included in the fee? Get commission, escrow, legal, registry, payment, and post-transfer charges in writing.
What due diligence will I receive? Ask for the checks, data sources, report date, and remediation process.
Who holds the funds? Confirm the escrow provider, account structure, inspection period, release conditions, and dispute process.
Who submits each RIR request? A broker can coordinate the process, but the registered organizations may still have to act through their own accounts.
What happens if the RIR rejects or delays the transfer? The contract should explain extensions, refunds, termination, and responsibility for corrections.
Is exclusivity required? Sellers should understand its duration, scope, renewal, and termination terms.
What post-transfer work is included? List RPKI, IRR, reverse DNS, geolocation, and routing support separately.
How is sensitive information protected? Ask who can access company documents and how long they are retained.
Are IPv4 brokers certified by an RIR?
Be careful with this wording.
RIPE NCC removed its Recognised IPv4 Transfer Brokers List at the end of 2023. There is no current RIPE NCC broker list.
ARIN maintains a Qualified Facilitator Program for organizations that meet its program requirements and help with IPv4 or ASN transfers.
APNIC publishes a list of registered IPv4 brokers that are APNIC Members and have agreed to follow its broker guidelines. APNIC states that listing does not mean it sponsors, endorses, or approves a broker's services.
These programs can help with initial screening, but they do not replace your own commercial, legal, and technical checks.
IPv4 due diligence checklist
Use this checklist whether you work with an IP address broker, a marketplace, or a seller directly.
Registration and authority
Confirm RDAP or WHOIS records match what the seller claims
Verify organization identity, signatory authority, and resource type
Confirm transfer eligibility, including any holding period still running
Registry data alone does not prove that the person negotiating can bind the organization
RIR policy
Confirm the transfer path is available between the registries involved
Check recipient requirements, account status, and applicable fees
A commercially agreed deal can still fail RIR review
Routing history and RPKI
Review historical origin ASNs, announcements, more-specifics, and unexplained changes
Check existing ROAs, route objects, and maintainers, and agree who updates them
Stale or conflicting objects delay deployment after an otherwise clean transfer
Reputation and geolocation
Check multiple maintained blocklists, abuse records, and mail reputation where relevant
Check the origin ASN, not only the prefix
Compare major geolocation databases and document the corrections you will need
There is no single permanent "clean IP" status - reputation changes with use
Contract and escrow
Define the exact prefix, price, warranties, liabilities, deadlines, and failure conditions
Confirm the escrow provider, fees, funding deadline, evidence of completion, and release trigger
Agree the dispute process before funds move, not after
The registry process does not replace a commercial agreement
Deployment
Plan routing, ROAs, IRR objects, reverse DNS, firewall rules, monitoring, and migration
A completed transfer does not make a block production-ready
IPbnb's trust and compliance framework explains how participant verification and abuse management are handled on the platform.
If you plan to announce the block yourself, first decide whether your network actually needs its own autonomous system number. You do not always need one. Compare the four ways to announce leased IPv4, then review ASN registration if your routing design requires it. For cloud deployment, see the BYOIP service.
A managed IPv4 leasing marketplace for holders
Monetize IPv4 Without Selling the Asset
Frequently asked questions
What is an IP broker?
In the IPv4 market, an IP broker is an intermediary that helps organizations buy or sell IPv4 address space. The broker may source blocks, verify counterparties, coordinate due diligence and escrow, negotiate terms, and guide the RIR transfer process.
What is the difference between an IP broker and an IPv4 broker?
In networking content, the terms are often used interchangeably. IPv4 broker and IP address broker are more precise because IP broker can also refer to intellectual property services.
Do I need an IPv4 broker to buy IP addresses?
No. You can use a marketplace or work with a known counterparty, provided you can manage due diligence, contracts, payment protection, and the RIR process. A broker is most useful when sourcing or the transaction itself is complex.
Can an IP address broker guarantee clean IPv4 addresses?
No responsible provider can guarantee that an address will remain absent from every blocklist or reputation database. Reputation changes with use, data sources disagree, and old records can reappear. Ask what was checked, when it was checked, and what remediation support is included.
How much are IPv4 broker fees?
There is no universal rate. Brokers may charge a percentage, a per-address amount, a flat fee, or a success fee. Public seller-side examples range from about 3% for large blocks to 8% or 10% for smaller deals, but the total cost can also include escrow, legal, payment, RIR, and technical support fees.
Does an IPv4 broker transfer the addresses?
The broker coordinates the transaction and may prepare documents, but the relevant RIR reviews and records the transfer. The source and recipient organizations may need to submit requests or documents through their own registry accounts.
Is an IPv4 marketplace safer than a broker?
Not automatically. Safety depends on counterparty verification, address checks, contract terms, escrow, transfer support, and a clear dispute process. Compare those controls directly.
Can I use a broker to lease IPv4 addresses?
Yes, some brokers also arrange leases. For standard blocks, a dedicated leasing marketplace may offer clearer inventory, pricing, and provisioning. Make sure the lease covers routing authorization, ROA and IRR changes, abuse handling, renewal, termination, and migration time.
The bottom line
An IPv4 broker is valuable when the hard part is finding the right block, managing a complex transfer, protecting confidentiality, or coordinating several parties. A marketplace is often a better starting point when suitable inventory is already listed and you want to compare prices and terms. Leasing makes sense when you need use of the addresses without a permanent purchase.
Do not choose by label alone. Compare the actual scope, total cost, due diligence, escrow terms, RIR experience, and post-transaction support.
If you are ready to buy, IPbnb can help you find and acquire verified IPv4 address space. If your requirement is temporary, explore IPv4 leasing options instead.
