IPv4 addresses cost between a few cents and several dollars per address, depending on whether you buy ipv4 blocks outright on the transfer market or rent dedicated IPv4 access through a proxy provider instead.
The IPv4 system only has about 4.3 billion possible addresses, and the regional registries that used to hand out blocks for free ran out of their open allocation pools years ago. That scarcity is the entire reason ipv4 for sale listings and a paid transfer market exist at all. Brokers advertise the same inventory as ipv4 addresses for sale, aggregated from multiple sellers within registry rules.
Once new free blocks stopped being available, organizations that already held IPv4 space became the only source for anyone who needed more. That shift turned a public resource into a traded asset, which is why anyone comparing ipv4 pricing today is really pricing a scarce, fixed-supply good.
Two very different paths now answer the same question. You can buy ipv4 address space outright and own it permanently, or you can rent dedicated IPv4 addresses from a provider and pay only for what you use, month to month.
Buying ipv4 addresses today almost always means buying through the regional registry transfer market, since new free allocations no longer exist. Prices are typically quoted as an ipv4 address price per single address, then multiplied out for the size of block you want.
Ipv4 price moves with supply and demand, not a published rate card. Larger blocks generally cost less per address than small ones, but the exact figure shifts month to month as more sellers list space or more buyers compete for it, so no single number stays accurate for long.
Purchase ipv4 addresses is rarely a same-day process. You need an account with the registry that governs the block (ARIN, RIPE NCC, APNIC, LACNIC, or AFRINIC), and the transfer itself needs registry approval before the address space is legally yours to route.
That approval step, plus negotiating with a seller or broker, is what makes purchase ipv4 block deals take weeks rather than minutes. It is a real cost too, not just a delay, since staff time and legal review both add to the total price of ownership.
IPv4 addresses cost between a few cents and several dollars per address, depending on whether you buy ipv4 blocks outright on the transfer market or rent dedicated IPv4 access through a proxy provider instead.
A faster path exists for almost every use case that is not permanent network ownership: rent dedicated IPv4 addresses from a proxy provider instead of buying a block outright.
KnoxProxy prices dedicated datacenter IPv4 addresses from $0.02 per IP, dropping to $0.016 per IP at 1,000-plus and $0.012 per IP at 10,000-plus, with no registry transfer required for any tier.
For workloads that need residential-level trust on a fixed address, dedicated ISP IPv4 addresses run a flat $2.90 per IP with unlimited bandwidth included, reserved to your account for as long as the subscription runs.
Renting skips the registry account, the transfer approval, and the legal review that ownership requires. You provision an IPv4 address for a project, use it for as long as the job needs, and release it when you are done.
Buying makes sense when the address needs to belong to you permanently, such as running your own network or hosting infrastructure under your own name. That permanence is the entire value; you pay once, plus registry fees, and the block is a long-term asset with no recurring bill.
Renting fits nearly every other case: proxy access, scraping, account management, or ad verification, where what you actually need is a working, stable address for a defined project, not an asset on your books.
Ipv4 cost on the buy side includes the per-address price plus registry and broker fees layered on top. Ipv4 address cost on the rent side is just the per-IP rate, billed for as long as you keep the address provisioned.
Sell ipv4 addresses is the mirror image of buying: an organization with unused space lists it on the same transfer market, at whatever price current demand supports. That two-sided market is exactly why buy-side pricing keeps moving instead of settling at one number.
# Same dedicated IPv4 address on every call -- no rotation, no registry transfer
curl -x http://USER:PASS@dedicated.knoxproxy.com:8000 https://ifconfig.me
curl -x http://USER:PASS@dedicated.knoxproxy.com:8000 https://ifconfig.me
# -> same IPv4 address both times, provisioned from your dashboard in minutesIf you need to own the block long-term, the transfer market is the only path. Budget for a per-address price that depends on block size and current demand, plus registry fees and several weeks of lead time before the address is usable.
If your ipv4 buy search is really about getting working addresses for proxy-style tasks, renting is the better fit. Residential and mobile proxies rotate IPs automatically, while dedicated datacenter and ISP IPs hold one fixed address, covering the how much does an ipv4 address cost question with a real, current rate instead of a moving market quote.
Compare the full rate card on the pricing page before committing to either path, and check the best residential proxies comparison if rotating addresses fit your workload better than a static, dedicated one.
How much does it cost to buy IPv4 addresses? Buying IPv4 addresses outright costs a per-address price set by the transfer market, which shifts with block size and demand, plus registry fees for the transfer. Renting is far cheaper for most projects: KnoxProxy prices dedicated datacenter IPs from $0.02 per IP and ISP IPs at a flat $2.90 per IP.
Is it cheaper to buy ipv4 addresses or rent them? Renting is cheaper for almost every use case outside permanent network ownership. Buying ipv4 addresses on the transfer market means a large upfront cost plus registry transfer fees, while renting a dedicated IP from KnoxProxy starts at $0.02 per IP, with no transfer paperwork required.
Where can I purchase ipv4 addresses? You can purchase ipv4 addresses through a regional registry transfer (ARIN, RIPE NCC, APNIC, LACNIC, or AFRINIC) or a licensed broker, both requiring an account and approval before the block transfers. For proxy-style use instead of ownership, renting dedicated IPs from a provider needs no registry process at all.
Why do ipv4 block prices vary so much? Ipv4 block prices vary because the market runs on supply and demand, not a fixed rate card. Block size, buyer demand in a given region, and how many sellers are active at the time all move the per-address price, so a quote from last month can differ from today's.
Do I need to buy an IPv4 block for a proxy or scraping project? No, most proxy and scraping projects do not need to buy an IPv4 block outright. Renting dedicated IPv4 addresses covers the same need, a static address that does not change, with no registry paperwork. KnoxProxy prices dedicated datacenter IPs from $0.02 per IP.
Buying ipv4 addresses outright makes sense only when you need permanent ownership of a block, and the per-address price depends on market demand and block size at the time you buy. For proxy-style work like scraping, account management, or ad verification, renting dedicated IPv4 addresses is faster and cheaper -- KnoxProxy prices datacenter IPs from $0.02 per IP and ISP IPs at a flat $2.90 per IP, with no registry transfer required.
Run a thousand requests and log the exit IPs. The difference is measurable in the first batch.