aipi is your IPv4 broker
The entire stock of European internet addresses (numbers) according to the old IPv4 standard has now been allocated. On 25 November 2019, the Réseaux IP Européens Network Coordination Centre (RIPE NCC) responsible for Europe allocated the last address block. Addresses returned to RIPE NCC will only be allocated to users on a restrictive basis. Addresses not yet used or no longer used by their owners have therefore become an economically interesting commodity. The recycling of previously unused IP addresses has therefore become important. IP addresses can be sold by holders for recycling.
aipi is an official IPv4 Transfer Broker registered with the European address management organisation RIPE NCC. aipi is also member of the Réseaux IP Européens Network Coordination Centre association.
We support you as an IPv4 broker in the sale of reserved but unused IPv4 addresses as well as in the search for new IPv4 address space.
Our customers who regularly have address needs include numerous regional internet providers in Germany, which are often municipal companies. The address blocks on offer were often registered by Internet pioneers in the 1990s. In the meantime, however, these have new corporate focuses and no longer need the large address ranges for their own offerings. We are happy to broker the purchase of IPv4 addresses between these target groups. If you want to buy or sell IP addresses, aipi is your perfect contact.
In cooperation with other brokers, we also realise your projects in North America and Asia.
aipi is a RIPE NCC registered IPv4 Transfer Broker
Current market prices for IPv4 addresses
In principle, the following rule applies to the transfer of IPv4 addresses: the larger the address block, the lower the price per IP address.
For up to 512 addresses (/23 and /24), the average market price is currently 46 EUR per address.
1,024 addresses (/22) are traded at 44 EUR per address.
2,048 addresses (/21) fetch 42 EUR per address.
For 4,096 addresses and larger blocks, prices of 40-50 EUR are common.
A /16 is traded at 35-40 EUR per address.
These prices are exclusive of brokerage and trustee fees and any applicable VAT.
Version: February 10th, 2025
Worldwide allocation bodies
The allocation of IP addresses - whether IPv6 or IPv4 - is carried out by the Regional Internet Registries (RIR):
- Europe and Middle East: RIPE NCC
- Latin America and Caribbean: LACNIC
- North America: ARIN
- Africa: AFRINIC
- Asia and Pacific: APNIC
In addition to the RIRs, there is also the US Department of Defense, which manages addresses for its own purposes. In addition, for historical reasons, there are some large US companies that manage their addresses themselves. In the early days, the distribution of addresses was initially based on blocks of 16,777,216 IPv4 addresses (/8), which were organised on the basis of the first byte. Due to the shortage of addresses, today there are also address ranges that are administered by several RIRs due to sub-distribution. Currently, the distribution of the address administrations looks like this:
Special IPv4 addresses
- 0.0.0.0/8 reserved for self-identification (RFC 6890).
- 10.0.0.0/8 reserved for Private Networks (RFC 1918).
- 100.64.0.0/10 reserved for Shared Address Space (RFC 6598]).
- 127.0.0.0/8 is reserved for Loopback (RFC 6890).
- 169.254.0.0/16 reserved for link-local addressing (RFC 6890).
- 172.16.0.0/12 reserved for private networks (RFC 1918).
- 192.0.0.0/24 reserved for IANA IPv4 Special Purpose Address Registry (RFC 5736).
- 192.0.2.0/24 reserved for TEST-NET-1 (RFC 5737).
- 192.88.99.0/24 reserved for 6to4 Relay Anycast (RFC 3068).
- 192.168.0.0/16 reserved for private networks (RFC 1918).
- 198.18.0.0/15 reserved for Network Interconnect Device Benchmark Testing (RFC 6890).
- 198.51.100.0/24 reserved for TEST-NET-2 (RFC 5737).
- 203.0.113.0/24 reserved for TEST-NET-3 (RFC 5737).
- 224.0.0.0/4 reserved for Multicast (RFC 5771)
- 240.0.0.0/4 reserved for future use (RFC 1112).
- 255.255.255.255 reserved for limited broadcast destination address (RFC 919) and (RFC 922).