8 October 2021 | 14 min read | Vincentas Grinius

IPv4 Price History

Update: This post was updated on June 14, 2022 to include more recent and relevant data about the history of IPv4 sale and lease prices.

IPv4 price history review

If you take a closer look at the IPv4 price history, you can clearly observe the changes within the internet itself. When the fourth version of the Internet Protocol emerged in the early 1980s, IP addresses were free and available for anyone in need. Unfortunately, this did not last long.

In 2011, brokerages started facilitating IP sales because the once large pool of IPv4 addresses was depleted. All five Regional Internet Registries (RIRs) – organizations allocating IPs across the globe – could no longer supply the increasing demand for resources that any growing business needs to scale. As it got much more difficult to procure IPs, selling and buying became the new norm. At least until IP leasing came around. 

Although free IPv4s have been exhausted, there are still unused assets that can be brought back to the market. And as buying IPs is becoming increasingly more expensive and difficult, IP leasing has emerged as an amazing solution. For both IP holders and companies that simply cannot or do not want to spend millions of dollars on limited internet numbers.

In this report, we analyze the changes within the IPv4 market. We also look at the value of selling IP addresses. Finally, we discuss the potential of securing a recurring revenue stream without losing the IP holder’s rights.

When did we run out of IPv4 addresses?

IPv4 resources have become a commodity, and that is because we ran out of IPs much quicker than expected.

The Internet Assigned Numbers Authority (IANA) exhausted its free pool of available resources in 2011. The organization divided the available address space according to the RIRs’ needs up until that point. Although it no longer has new IP addresses to spare, IANA is still responsible for the global coordination of the IP addressing systems and autonomous system numbers (ASN).

According to Geoff Huston, APNIC – the RIR of the Asia-Pacific region – was the first to run out of allocated IPv4 addresses in 2011. Other RIRs followed suit: RIPE NCC (Europe and parts of Asia) in 2012, LACNIC (South America and parts of the Caribbean) in 2014 and ARIN (North America and parts of the Caribbean) in 2015.

Line graph of IPv4 address pool exhaustion by RIR between 2013 and 2022.
IPv4 exhaustion throughout the years

AFRINIC entered the so-called IPv4 exhaustion phase 2 at the beginning of 2020. It is also nearing the full depletion of the resources allocated by IANA. Therefore, the RIR now offers the minimum allocation size of /24 subnet and the maximum of /22.

APNIC allocates /23, while ARIN supports micro allocations of /24 to organizations that transition to IPv6. LACNIC is awaiting recovered and returned addresses so that it can re-allocate them to the waiting list members. RIPE has also introduced a waiting list.

Why do we buy IPv4?

IP addresses enable all internet-connected devices to communicate. That includes servers, desktop computers, smartphones, printers, smart home cameras, smart TVs and so on. The good news is that regular internet users don’t need to buy IPs or even configure them.

Internet service providers (ISPs) operate by allocating IPs to their customers, and ISPs get their resources from the RIR operating in their geographical region. IANA, as you now know, is responsible for splitting the entire IPv4 address space among RIRs.

Tree chart shows how IANA splits the entire pool of IPv4 addresses.
IANA splits the available address space among RIRs

Companies hoard IP addresses

Needless to say, ISPs, cloud providers, IoT companies, hosting providers and companies of all sizes need IP addresses to run and also scale their operations. One company may choose to buy IPs because it may require greater control over their networks. Another company may have security concerns or simply may not have enough information about the financial value of resources that are in high demand. 

The problem here is that quite a few companies hoard IP addresses seemingly without a purpose. Some may not care to utilize IPs on their networks, and others may not understand the revenue potential. While, in theory, we have run out of new IP addresses, around 20% (49 /8 blocks) of global IPv4 resources remain unused.

According to IPXO’s VP of Strategic Sales, Paulius Judickas, the IPv4 price grew by almost 250% between 2020 and 2021. He added:

One would think that companies sitting on unused IP resources would either monetize or sell them, but that hasn’t been the case. In fact, there are still over 800 million unused IPs, mostly held by companies that obtained resources when IPv4 scarcity wasn’t an issue. New companies, on the other hand, are suffering from the IPv4 shortage.

Judickas also added that since 2018, the IPv4 lease price has almost tripled, which directly correlates to the IPv4 sale price. According to IPXO’s data, there’s a 6-8 month gap between the increase of the IP sale price and the increase of the IP lease price.

We now know that while the IP sale price doubled last year, the IP lease price grew by 40%. That means that the lease price will continue to rise, and it’s the perfect time to monetize.

Big companies purchase IPv4 addresses

To obtain IPv4 resources, you can become a member of an RIR and, potentially, enter a waiting list. This means that you have to wait for IPs that the RIR reclaims during a re-allocation or transfer. Alternatively, you can also use the services of IPv4 brokers, who handle IP transfers and connect IPv4 address sellers with buyers. 

In 2011, Microsoft obtained 666,624 IPv4 addresses from Nortel, a Canadian telco that went bankrupt. The company paid 7.5 million US dollars (7.3 million Canadian dollars at the time), or $11.25 per IP address, which was not a small price to pay in 2011. By this time, it was already clear that IPv4 addresses were running out rapidly, and Microsoft’s purchase indicated that changes were coming to the IPv4 market. 

In 2017, Google purchased the entire /12 block, consisting of 1,048,576 IP addresses. Amazon was also an active buyer in the period between 2017 and 2019. According to reports, the company purchased 8 million IPv4 addresses from MIT, 16 million from General Electric and 4 million from AMPRNet. 

At an average price of $15-25 per IP at the time, Amazon could have paid close to $420-700 million. Today, the same resources could go for as much as $45-60 per IPv4 address, which means that a buyer would need around $1.2-1.7 billion to cover the cost. In short, in just a few years, the IPv4 price has more than doubled. This perfectly illustrates how quickly IPv4s have become a desirable commodity. 

What influences the IPv4 selling price?

The IPv4 price continues to grow each year. And while you might have purchased one IP for around $5-10 a decade ago, today, you would have to allocate from $45 to $60 for the same resource. 

Several key factors influence the global IPv4 sale price:

  • Supply and demand are out of balance
  • The transition to IPv6 is slower than expected
Scale showing that the demand for IPv4 addresses is much higher than supply.
Demand for IPv4 addresses is greater than the supply

Supply and demand imbalance

According to statistics, in April 2022, there were 5 billion internet users worldwide. A number that has surpassed the total number of IPv4 addresses. There are 4.29 billion unique IPv4 addresses in total, and when the IP version 4 emerged in the 1980s, this seemed like an abundant number of resources for many years to come.

Internet architects quickly learned that the limited number of 4.29 billion IPs would run out and much quicker than anyone could have imagined. The Internet Stream Protocol, which is famously known as IPv5, never left the experimental phase. However, IPv6, introduced in 1995, seemed to offer an excellent alternative. Nonetheless, IPv6 adoption rates have been disappointing.

Slow IPv6 adoption

The IPv4 vs. IPv6 debate is gaining more traction these days. However, we believe that IPv4 will continue to be the backbone of the internet for the foreseeable future. Why is that so? First and foremost, IPv4 manages to satisfy the needs of users. Network Address Translation (NAT) plays a huge part in this. 

Every internet-connected device requires a unique IP address, but there are more than 4.29 billion devices in the world. NAT consolidates multiple private IPs into fewer public IPs, which helps conserve the limited IPv4 addresses.

Moreover, IPv6 network adoption requires immense resources. Replacing equipment, training IT teams or hiring IPv6 experts and transitioning users is not appealing to companies that are still fully functional without IPv6. Even some ISPs aren’t ready for the shift.

Mobile network operators are definitely leading in IPv6 adoption. According to some reports, Verizon and AT&T are at 80% of IPv6 adoption, and T-Mobile is nearing 100%. Nonetheless, IPv6 connectivity among Google users data shows that IPv6 adoption globally barely crossed the 40% mark in June 2022.

Google IPv6 adoption statistics for 2018-2022.
IPv6 adoption among Google users reached 40% in June 2022 (data by Google)

How do IPv4 transfers work?

IPv4 address transfering indicates the move of the resource from one entity to another. An IP holder – who is either a Local Internet Registry (LIR) or the end-user represented by one – can request a transfer. Request procedures differ, depending on individual RIRs’ policies.

We can take RIPE NCC as an example. This RIR requires that transfers occur between LIRs and end-users that LIRs sponsor. IPv4 addresses cannot be transferred for 24 months if received from the RIR, transferred from another organization or after a merger/acquisition.

RIPE NCC supports inter-RIR transfers; however, it does not support trading until both involved RIRs approve it, and, as you already know, different RIRs have different policies. Furthermore, RIRs have different relationships. 

RIPE NCC only facilitates IPv4 transfers with ARIN, APNIC and LACNIC. All four RIRs have inter-RIR compatible policies, but AFRINIC does not. Naturally, inter-RIR transfers are not possible between AFRINIC and the other four RIRs. 

Arrows pointing between RIRs that have inter-RIR transfer relationships.
Inter-RIR transfer relationships between RIRs

It should come as no surprise that transferring IPs comes with a price. For example, when transferring resources from LACNIC, an administrative fee between 1,000-1,500 US dollars (depending on the size of the subnet) must be paid. 

Between 2012 and 2020, more than 370 million IPv4 addresses were transferred. This indicates that IPv4 assets are moving between entities quite vigorously. Undoubtedly, IPv4 transfers impact IPv4 sales and, consequently, the Pv4 lease price.

The rise in IPv4 transfers between 2012-2020 in millions shown as a line graph.
IP transfers between 2012-2021

IPv4 sale price history overview

Comprehensive historical data on global IPv4 prices or IPv4 transfer deals throughout the years doesn’t exist. Such data is simply not revealed by RIRs, LIRs and the IP brokers. Nonetheless, some trading information has been made public. Therefore, we can piece together the details we have to make up the bigger picture.

You could have bought a single IPv4 address for around $10-15 in 2017. The average IPv4 price grew to around $15-20 in 2019. According to our statistics, /24, /23 and /22 blocks were the most popular and sold at the higher prices at the time. If sold at $20 per IP, the blocks were worth $5,120, $10,240 and $20,480, respectively. Not too shabby for something intangible.

According to the historical data accumulated by Hilco Streambank’s IPv4 brokerage division, the IPv4 price has risen significantly within the last decade. The graph below shows the average IPv4 price in USD between 2014 and 2022.

IPv4 sale history from 2014 to 2022.
IPv4 price history between 2014 and 2022 (data by IPv4.Global)

According to the data of this single IPv4 brokerage, the IPv4 sale price went up from around $6-24 per IP in 2014 to $23-60 per IP in 2021. The differences between the lowest and highest sales per IPv4 were relatively modest up until 2021. Then, significant jumps started occurring.

The highest sale prices per IP address were recorded in September and October 2021. The IPs allocated by RIPE NCC and ARIN were sold for $60 apiece. RIPE NCC allocations were sold for $15,360 for the entire /24 block, and ARIN’s allocations were sold for $61,440 for the /22 block and $30,720 for the /23 block. 

In May 2022, IP brokers sold assets allocated by RIPE for $58 per IPv4 address ($29,696 for the entire /23 block). While the 60 dollars mark has not been crossed in 2022 thus far (i.e., June), the IPv4 price has been quite stable. At least compared to the price changes in 2021. 

You can find historical IP sale data from 2014 January to 2022 May in the table below. The data represents allocations from different RIRs and both lowest and highest prices per IPv4 in blocks /24-/15.

Table of average IPv4 sale prices in /23-/15 blocks between 2014 and 2022.
Lowest to highest IP pricing by subnet block size between 2014-2022 in US dollars (data by IPv4.Global)

Unsurprisingly, the biggest sales are associated with the /15 subnet, the biggest block (131,072 IPs) in the available data. Two blocks allocated by ARIN were sold for $4.19 million and $5.06 million in May 2021 and June 2021, respectively. 

It’s important to note that this data represents IP sale information from one independent IPv4 brokerage. Moreover, we cannot determine the administrative fees that could have been part of the publicized sales. Ultimately, IPv4 brokerages set and control their own prices. 

Needless to say, this is just one piece of the puzzle that IPXO analysts use to get a clear picture. While we look at this data with a grain of salt, it helps us understand the state of today’s IPv4 market and the IPv4 value overall. 

Market prices: Leasing IPv4 vs. selling IPv4

As we have already discussed, the IPv4 lease price directly correlates with the IPv4 sale price with a delay of around 6-8 months. That means that we can predict how the IP lease cost will change in the near future. The current data shows that the lease price will continue to go up. 

In 2022, the IPv4 lease price ranges from $0.39 per IPv4 per month (/16 block in January) to $0.79 per IPv4 per month (/20 block in January). The numbers are comparable to those of 2021. Last year, the IPv4 lease price ranged from $0.37 per IPv4 (/16 block in June) to $0.90 per IPv4 (/22 block in April). 

Table of average lease prices per IPv4 address in /16-/24 blocks in 2022.
IPv4 lease prices per IP from subnets /16 – /24, January-May 2022 (IPXO Marketplace data)

Although lease prices are quite stable, we must anticipate fluctuations; especially across different IPv4 lease providers. The average lease price at the IPXO Marketplace ranged between $0.55 and $0.59 per IP address between January and May of 2022. To get a more detailed view of the market, please refer to the first of its kind IPXO Statistics hub.

Unsurprisingly, in 2022, the biggest subnets offer the best deals per IP address, whereas the smallest subnets are the more expensive ones. The same was observed in 2021, when IPs in /16 and /17 subnets came at the lowest cost, at an average lease price of $0.59 and $0.48, respectively. IPs in /22 – /24 subnets were the most expensive, averaging at $0.76, $0.77 and $0.78, respectively.

Line graph of average IPv4 lease prices per IP in 2021.
Average IPv4 lease prices per IP in USD in 2021 (data from Heficed’s IP Address Market)

As the IPv4 cost continues to go up due to the shortage of resources and sluggish IPv6 adoption, some IP holders are, literally, holding onto their assets in the hopes of making more money in the future. That said, there are a few issues associated with selling IPs. The biggest of them being that when you sell, you are signing up for a one-time deal.

Even though IPv4s were once free, the scarcity has created a secondary market, in which unused resources are put back into rotation for a fee. At the end of the day, someone is always willing to pay for the assets they request and need. And we know very well that IPv4 addresses are in high demand. 

According to the IPXO revenue calculator, the average price per IP, at the moment, is $44. Let’s say you want to sell your /24 subnet, which is the most popular in the lease market. The /24 subnet contains 256 IPv4 addresses. Therefore, if the lease cost per IPv4 address is $44, you could earn $11,264. Please keep in mind the 5% platform fee for IP holders that is deducted monthly from earned revenue.

All in all, if you sold your assets, you would lose the recurring revenue potential, yield gains and the rights to use the resources as a legitimate holder. On the other hand, if you chose to lease your IP addresses, you could retain those rights and secure recurring revenue and yield gains. 

IPXO lease vs. sell IPv4 calculator that allows to compare potential revenue.
Leasing vs. selling revenue comparison

According to the calculations in the image above, you could make more money by leasing your IPs instead of selling them in just under a year. The good news is that, currently, there’s no limit to how long you can lease your assets. Sure, IPv6 adoption may speed up; however, the demand for IPv4 resources is unlikely to halt any time soon. 

Overall, leasing IPv4 resources is beneficial in more ways than one. The IP resource holder can unlock a new revenue stream by setting the desired prices. At the same time, the lessee – the person who rents the IPs – can start scaling their business. Unfortunately, at this time, this may be impossible without IPv4 addresses. 

In conclusion, IPv4 leasing offers significant relief to IPv4 exhaustion. It also contributes to the growth of the sustainable Internet Protocol ecosystem.

IPXO's example of a revenue model when comparing selling vs. leasing IPv4.
Revenue model comparing selling vs. leasing subnet /16

Even if you decide to give up your IPv4 resources one day, there’s no point in keeping them idle today. It has never been easier to monetize IP addresses and create a stable revenue stream.

The dark side of the IPv4 world

Whether you choose to sell or monetize IPv4 addresses, you have plenty of options to do it safely and legally. Unfortunately, not everyone is willing to play by the rules. 

The black market is booming

Anything that is in high demand eventually attracts shady business. Unsurprisingly, the IPv4 black market is growing, and IP holders need to protect their resources more than ever before.

In 2019, Amir Golestan from Charleston, S.C., managed to obtain 757,760 IP addresses from ARIN just so he could sell them on the black market. The US Department of Justice charged Golestan on twenty counts of wire fraud.

According to the Department of Justice, the number of IP addresses obtained by Golestan could have been worth between $9.8-14.4 million ($13-19 per IP address). ARIN uncovered the fraud when it found that numerous bogus companies obtained small blocks of IPv4 and then resold them to third parties.

That same year, reports emerged suggesting that AFRINIC resources worth 1.3 billion ZAR were stolen and sold on the black market. Shockingly, the theft was an inside job.

A list of dangers associated with participating in the IPv4 black market.
Dangers of trading IP resources in the black market

Unprotected IP address blocks are at risk

The black market often relies on the use of hijacked IP addresses. Hackers perform BGP hijacking to corrupt internet routing tables and take over IPs. The hijacked resources go to malicious parties, who may exploit them for spamming and other malicious activities.

Spamming is not only annoying or potentially dangerous. The biggest concern is that if a hijacked IP address is used for spamming, the reputation of that IP may be tarnished. That is because when suspicious or malicious activity is associated with an IP address, it is blocklisted. IP blocklisting is a kind of IP filtering system that, in most cases, assists in email traffic filtration.

With the IPv4 price at an all-time high, IP-related security issues require close attention from everyone involved. That includes cybersecurity experts, IP holders, internet service providers, RIRs and also those who help manage IP resources.

At IPXO, a professional Abuse Prevention team ensures top-level IP address abuse observability and 24/7 support. Real-time IP address monitoring and daily IP health checkups help maintain IP reputation and keep customers – both lessors and lessees – safe.

The future of IPv4 prices

The size of the internet may not be limitless, and as the global population expands and the number of connected people grows, the IPv4 space becomes smaller and smaller. While we await wider adoption of IPv6, we have to find ways to make do with the resources we already have.

According to historical projections, IPv6 should have replaced IPv4 by now. Clearly, that hasn’t happened yet. That is, largely, thanks to Network Address Translation technology. All in all, it is difficult to say how quick (or slow) IPv6 adoption will be, but we believe that IPv4 will continue to be the backbone of the internet for many years to come. Quite possibly, throughout the entire 2020s, too.

Once IPv6 catches up to IPv4, we should see IPv4 sale and lease markets stabilizing. For now, however, both sale and lease prices are on the rise. While selling IPv4 resources might seem like a good option, data and numbers show that, at this time, monetizing IPs by leasing them is more profitable than selling IPs. In fact, it may take just under one year to attain greater revenue compared to a one-time sale. 

At IPXO, we support every business in any industry interested in monetizing unused IP addresses, enriching the current market and helping smaller businesses around the world scale with the help of IPv4 resources. If you are interested in joining the IPXO Marketplace, your fully automated IP address lease & management platform, register an account for free and watch our webinar to learn more.

IPXO Webinar: IPXO Platform Overview – Learn more about IP monetization and IP leasing

About the author

Vincentas Grinius


Vincentas is a business-driven geek with over 15+ years of network, infrastructure and internet policy experience. As a CEO at IPXO, the Internet Protocol platform, Vincentas focuses on helping address complex network management issues and the global IPv4 shortage.