Allocated but unannounced space
Every block here was allocated or assigned by a regional internet registry, and none of them appeared in any routing table we collected at our last snapshot — neither as a route of their own, nor covered by a larger announcement, nor carved up into more specifics.
“Unannounced” does not mean “unused”
Plenty of allocated space is deliberately kept off the public internet: private interconnects, lab and lawful-intercept ranges, networks reachable only inside one operator, and space held in reserve. Some of it is announced somewhere our collectors cannot see, which is a limit of our vantage points rather than a fact about the block.
It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today. Nothing on this page means a block is unallocated, available, or free to announce.
Browse by registry
Browse by country
Countries with the most unannounced blocks, largest first.
Unannounced blocks
85,195 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2a01:e640::/29 | 34.4B × /64 | RIPE NCC |  IR | 2nd Oct 2024 |
| 2a01:e6c0::/29 | 34.4B × /64 | RIPE NCC |  FR | 3rd Oct 2024 |
| 2a01:e700::/29 | 34.4B × /64 | RIPE NCC |  PL | 7th Aug 2024 |
| 2a01:e740::/29 | 34.4B × /64 | RIPE NCC |  EE | 4th Oct 2024 |
| 2a01:e8::/32 | 4.3B × /64 | RIPE NCC |  SE | 9th May 2006 |
| 2a01:e8c0::/29 | 34.4B × /64 | RIPE NCC |  DK | 8th Oct 2024 |
| 2a01:e980::/29 | 34.4B × /64 | RIPE NCC |  GB | 23rd Aug 2024 |
| 2a01:e9c0::/29 | 34.4B × /64 | RIPE NCC |  BH | 10th Oct 2024 |
| 2a01:ea40::/29 | 34.4B × /64 | RIPE NCC | DK | 11th Oct 2024 |
| 2a01:ea80::/29 | 34.4B × /64 | RIPE NCC | FR | 23rd Aug 2024 |
| 2a01:eac0::/29 | 34.4B × /64 | RIPE NCC |  RU | 11th Oct 2024 |
| 2a01:eb40::/29 | 34.4B × /64 | RIPE NCC |  AT | 11th Oct 2024 |
| 2a01:ec40::/29 | 34.4B × /64 | RIPE NCC |  NL | 11th Oct 2024 |
| 2a01:ec80::/29 | 34.4B × /64 | RIPE NCC |  SA | 26th Aug 2024 |
| 2a01:ed00::/29 | 34.4B × /64 | RIPE NCC | IR | 8th Aug 2024 |
| 2a01:ed40::/29 | 34.4B × /64 | RIPE NCC |  DE | 14th Oct 2024 |
| 2a01:ed80::/29 | 34.4B × /64 | RIPE NCC |  TR | 26th Aug 2024 |
| 2a01:edc0::/29 | 34.4B × /64 | RIPE NCC |  CH | 14th Oct 2024 |
| 2a01:ee00::/29 | 34.4B × /64 | RIPE NCC |  IT | 1st Aug 2024 |
| 2a01:ee40::/29 | 34.4B × /64 | RIPE NCC |  JO | 14th Oct 2024 |
| 2a01:eec0::/29 | 34.4B × /64 | RIPE NCC | IR | 15th Oct 2024 |
| 2a01:ef00::/32 | 4.3B × /64 | RIPE NCC | NL | 9th Aug 2024 |
| 2a01:ef40::/29 | 34.4B × /64 | RIPE NCC |  LT | 15th Oct 2024 |
| 2a01:f000::/29 | 34.4B × /64 | RIPE NCC |  AZ | 22nd Jul 2024 |
| 2a01:f0::/32 | 4.3B × /64 | RIPE NCC |  ES | 11th May 2006 |
| 2a01:f140::/29 | 34.4B × /64 | RIPE NCC | LT | 15th Oct 2024 |
| 2a01:f200::/29 | 34.4B × /64 | RIPE NCC | IR | 2nd Aug 2024 |
| 2a01:f280::/29 | 34.4B × /64 | RIPE NCC |  BG | 28th Aug 2024 |
| 2a01:f300::/32 | 4.3B × /64 | RIPE NCC |  UA | 9th Aug 2024 |
| 2a01:f380::/32 | 4.3B × /64 | RIPE NCC | DE | 28th Aug 2024 |
| 2a01:f3c0::/29 | 34.4B × /64 | RIPE NCC | LT | 15th Oct 2024 |
| 2a01:f400::/29 | 34.4B × /64 | RIPE NCC | ES | 26th Jul 2024 |
| 2a01:f4c0::/29 | 34.4B × /64 | RIPE NCC | LT | 15th Oct 2024 |
| 2a01:f580::/29 | 34.4B × /64 | RIPE NCC | TR | 29th Aug 2024 |
| 2a01:f5c0::/32 | 4.3B × /64 | RIPE NCC | FR | 24th Nov 2025 |
| 2a01:f600::/32 | 4.3B × /64 | RIPE NCC |  SM | 2nd Aug 2024 |
| 2a01:f640::/29 | 34.4B × /64 | RIPE NCC | ES | 18th Oct 2024 |
| 2a01:f6c0::/29 | 34.4B × /64 | RIPE NCC |  PS | 18th Oct 2024 |
| 2a01:f700::/29 | 34.4B × /64 | RIPE NCC | IR | 12th Aug 2024 |
| 2a01:f7c0::/29 | 34.4B × /64 | RIPE NCC | FR | 21st Oct 2024 |
| 2a01:f800::/29 | 34.4B × /64 | RIPE NCC | NL | 23rd Jul 2024 |
| 2a01:f840::/29 | 34.4B × /64 | RIPE NCC | NL | 21st Oct 2024 |
| 2a01:f940::/32 | 4.3B × /64 | RIPE NCC |  BE | 21st Oct 2024 |
| 2a01:f980::/29 | 34.4B × /64 | RIPE NCC | IR | 30th Aug 2024 |
| 2a01:fa40::/29 | 34.4B × /64 | RIPE NCC | IT | 21st Oct 2024 |
| 2a01:fa80::/29 | 34.4B × /64 | RIPE NCC | DE | 30th Aug 2024 |
| 2a01:fb80::/29 | 34.4B × /64 | RIPE NCC | IR | 2nd Sept 2024 |
| 2a01:fbc0::/29 | 34.4B × /64 | RIPE NCC | IR | 24th Oct 2024 |
| 2a01:fc00::/29 | 34.4B × /64 | RIPE NCC | ES | 26th Jul 2024 |
| 2a01:fc40::/32 | 4.3B × /64 | RIPE NCC | RU | 24th Oct 2024 |