What we hold, and how much of it
Longest Match answers questions about IP addresses: where they are, who runs them, and what they are being used for. Here is everything we hold, and how much of it there is. Every figure below is counted from the live data.
Where the records sit
| Dataset | Records |
|---|---|
| Geolocation blocksWhere an address resolves to. One source gives the city, a second gives the country, and a city is published only where the two agree on the country. | 9,155,075 |
| Announcing networksWhich autonomous system announces each block. | 570,583 |
| Registry recordsWho each block is allocated to, from the five regional internet registries. | 7,066,542 |
| Routing announcementsWhich network is currently advertising each block, and how many independent vantage points can see it. | 1,400,443 |
| Anonymiser rangesVPN exits, Tor exits, open proxies and datacenter space, each graded by how good the evidence is. | 485,740 |
| Cloud and hosting rangesAddress space published by the operators who run it, across dozens of providers. | 150,658 |
| Reputation listingsHijacked and unallocated space, refreshed daily because a stale listing accuses someone. | 162,912 |
| Network classificationWhat kind of network runs an address, cross-checked between two independent sources. | 307,919 |
Coverage across IPv4 and IPv6
3,127,873,904 IPv4 addresses currently carry a route we can see, which is 72.8% of the 4,294,967,296 addresses IPv4 has in total. The rest is reserved, unallocated, or allocated to somebody who has not announced it. IPv6 is counted separately, in /64s. The two families have no unit in common: a single IPv6 allocation holds more /64s than IPv4 holds addresses, so a combined figure would say more about the scaling than about the internet.
What is published
Every network, operator, organisation, country and VPN provider in the data has its own page.
| Page type | Count |
|---|---|
| Networks profiled | 96,001 |
| Operators, grouped from the networks they run | 7,959 |
| Organisations address space is registered to | 89,970 |
| Countries | 254 |
| VPN providers with identified exits | 26 |
194,210 profiles in total, each showing how much address space it holds, what that space is used for, and where it is.
We publish aggregate network metrics and directory summaries. We never sell, trade or publish raw address lists. You can see how much space a network holds and what it is used for. You cannot download the addresses themselves, and you never will be able to.
How current the data is
Each dataset refreshes on its own schedule, from daily to fortnightly, chosen by how fast the underlying facts actually change. Reputation listings are the most frequent, because a stale listing keeps accusing a network that has already been cleared. Routing is read from full table dumps. Registry delegations refresh daily, and the bulk registry records behind them weekly.
Exact refresh times per dataset are not published. Where staleness changes what an answer means, the date sits on the answer itself: every reputation listing shows when it was last confirmed.