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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
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Countries with the most unannounced blocks, largest first.
Unannounced blocks
85,221 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2804:6d70::/32 | 4.3B × /64 | LACNIC |  BR | 19th Mar 2020 |
| 2804:6dbc::/32 | 4.3B × /64 | LACNIC | BR | 24th Mar 2020 |
| 2804:6dc4::/32 | 4.3B × /64 | LACNIC | BR | 24th Mar 2020 |
| 2804:6dd0::/32 | 4.3B × /64 | LACNIC | BR | 24th Mar 2020 |
| 2804:6de4::/32 | 4.3B × /64 | LACNIC | BR | 25th Mar 2020 |
| 2804:6e0::/32 | 4.3B × /64 | LACNIC | BR | 10th Oct 2011 |
| 2804:6e5c::/32 | 4.3B × /64 | LACNIC | BR | 2nd Apr 2020 |
| 2804:6e70::/32 | 4.3B × /64 | LACNIC | BR | 3rd Apr 2020 |
| 2804:6e78::/32 | 4.3B × /64 | LACNIC | BR | 3rd Apr 2020 |
| 2804:6e8::/32 | 4.3B × /64 | LACNIC | BR | 14th Oct 2011 |
| 2804:6ebc::/32 | 4.3B × /64 | LACNIC | BR | 9th Apr 2020 |
| 2804:6edc::/32 | 4.3B × /64 | LACNIC | BR | 14th Apr 2020 |
| 2804:6f08::/32 | 4.3B × /64 | LACNIC | BR | 17th Apr 2020 |
| 2804:6f34::/32 | 4.3B × /64 | LACNIC | BR | 24th Apr 2020 |
| 2804:6f5c::/32 | 4.3B × /64 | LACNIC | BR | 28th Apr 2020 |
| 2804:6f70::/32 | 4.3B × /64 | LACNIC | BR | 29th Apr 2020 |
| 2804:6f7c::/32 | 4.3B × /64 | LACNIC | BR | 29th Apr 2020 |
| 2804:6f8c::/32 | 4.3B × /64 | LACNIC | BR | 30th Apr 2020 |
| 2804:6fac::/32 | 4.3B × /64 | LACNIC | BR | 5th May 2020 |
| 2804:6fc0::/32 | 4.3B × /64 | LACNIC | BR | 7th May 2020 |
| 2804:6fd8::/32 | 4.3B × /64 | LACNIC | BR | 8th May 2020 |
| 2804:6fe4::/32 | 4.3B × /64 | LACNIC | BR | 11th May 2020 |
| 2804:7004::/32 | 4.3B × /64 | LACNIC | BR | 12th May 2020 |
| 2804:7034::/32 | 4.3B × /64 | LACNIC | BR | 15th May 2020 |
| 2804:7048::/32 | 4.3B × /64 | LACNIC | BR | 19th May 2020 |
| 2804:7074::/32 | 4.3B × /64 | LACNIC | BR | 20th May 2020 |
| 2804:7098::/32 | 4.3B × /64 | LACNIC | BR | 22nd May 2020 |
| 2804:70c4::/32 | 4.3B × /64 | LACNIC | BR | 26th May 2020 |
| 2804:711c::/32 | 4.3B × /64 | LACNIC | BR | 29th May 2020 |
| 2804:7130::/32 | 4.3B × /64 | LACNIC | BR | 1st Jun 2020 |
| 2804:7158::/32 | 4.3B × /64 | LACNIC | BR | 3rd Jun 2020 |
| 2804:7194::/32 | 4.3B × /64 | LACNIC | BR | 9th Jun 2020 |
| 2804:71a8::/32 | 4.3B × /64 | LACNIC | BR | 10th Jun 2020 |
| 2804:71d8::/32 | 4.3B × /64 | LACNIC | BR | 15th Jun 2020 |
| 2804:7218::/32 | 4.3B × /64 | LACNIC | BR | 17th Jun 2020 |
| 2804:7274::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jun 2020 |
| 2804:727c::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jun 2020 |
| 2804:7294::/32 | 4.3B × /64 | LACNIC | BR | 25th Jun 2020 |
| 2804:72cc::/32 | 4.3B × /64 | LACNIC | BR | 30th Jun 2020 |
| 2804:72e0::/32 | 4.3B × /64 | LACNIC | BR | 1st Jul 2020 |
| 2804:72e8::/32 | 4.3B × /64 | LACNIC | BR | 1st Jul 2020 |
| 2804:7334::/32 | 4.3B × /64 | LACNIC | BR | 2nd Jul 2020 |
| 2804:7350::/32 | 4.3B × /64 | LACNIC | BR | 6th Jul 2020 |
| 2804:7354::/32 | 4.3B × /64 | LACNIC | BR | 6th Jul 2020 |
| 2804:737c::/32 | 4.3B × /64 | LACNIC | BR | 8th Jul 2020 |
| 2804:7384::/32 | 4.3B × /64 | LACNIC | BR | 8th Jul 2020 |
| 2804:73b0::/32 | 4.3B × /64 | LACNIC | BR | 13th Jul 2020 |
| 2804:7450::/32 | 4.3B × /64 | LACNIC | BR | 21st Jul 2020 |
| 2804:7458::/32 | 4.3B × /64 | LACNIC | BR | 22nd Jul 2020 |
| 2804:7470::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jul 2020 |