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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 2804:65bc::/32 | 4.3B × /64 | LACNIC |  BR | 4th Nov 2019 |
| 2804:65c4::/32 | 4.3B × /64 | LACNIC | BR | 5th Nov 2019 |
| 2804:660::/32 | 4.3B × /64 | LACNIC | BR | 12th Sept 2011 |
| 2804:6624::/32 | 4.3B × /64 | LACNIC | BR | 11th Nov 2019 |
| 2804:6680::/32 | 4.3B × /64 | LACNIC | BR | 18th Nov 2019 |
| 2804:6690::/32 | 4.3B × /64 | LACNIC | BR | 18th Nov 2019 |
| 2804:66c::/32 | 4.3B × /64 | LACNIC | BR | 13th Sept 2011 |
| 2804:66e8::/32 | 4.3B × /64 | LACNIC | BR | 25th Nov 2019 |
| 2804:66f0::/32 | 4.3B × /64 | LACNIC | BR | 26th Nov 2019 |
| 2804:66fc::/32 | 4.3B × /64 | LACNIC | BR | 26th Nov 2019 |
| 2804:6704::/32 | 4.3B × /64 | LACNIC | BR | 27th Nov 2019 |
| 2804:6720::/32 | 4.3B × /64 | LACNIC | BR | 2nd Dec 2019 |
| 2804:6760::/32 | 4.3B × /64 | LACNIC | BR | 6th Dec 2019 |
| 2804:678::/32 | 4.3B × /64 | LACNIC | BR | 16th Sept 2011 |
| 2804:67b4::/32 | 4.3B × /64 | LACNIC | BR | 12th Dec 2019 |
| 2804:67d0::/32 | 4.3B × /64 | LACNIC | BR | 13th Dec 2019 |
| 2804:6818::/32 | 4.3B × /64 | LACNIC | BR | 18th Dec 2019 |
| 2804:6854::/32 | 4.3B × /64 | LACNIC | BR | 26th Dec 2019 |
| 2804:6880::/32 | 4.3B × /64 | LACNIC | BR | 2nd Jan 2020 |
| 2804:6890::/32 | 4.3B × /64 | LACNIC | BR | 6th Jan 2020 |
| 2804:6898::/32 | 4.3B × /64 | LACNIC | BR | 6th Jan 2020 |
| 2804:68d0::/32 | 4.3B × /64 | LACNIC | BR | 13th Jan 2020 |
| 2804:68f4::/32 | 4.3B × /64 | LACNIC | BR | 14th Jan 2020 |
| 2804:690c::/32 | 4.3B × /64 | LACNIC | BR | 15th Jan 2020 |
| 2804:6910::/32 | 4.3B × /64 | LACNIC | BR | 16th Jan 2020 |
| 2804:691c::/32 | 4.3B × /64 | LACNIC | BR | 17th Jan 2020 |
| 2804:694::/32 | 4.3B × /64 | LACNIC | BR | 22nd Sept 2011 |
| 2804:696c::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jan 2020 |
| 2804:697c::/32 | 4.3B × /64 | LACNIC | BR | 24th Jan 2020 |
| 2804:698::/32 | 4.3B × /64 | LACNIC | BR | 22nd Sept 2011 |
| 2804:69bc::/32 | 4.3B × /64 | LACNIC | BR | 28th Jan 2020 |
| 2804:6a04::/32 | 4.3B × /64 | LACNIC | BR | 3rd Feb 2020 |
| 2804:6a08::/32 | 4.3B × /64 | LACNIC | BR | 3rd Feb 2020 |
| 2804:6a34::/32 | 4.3B × /64 | LACNIC | BR | 4th Feb 2020 |
| 2804:6a70::/32 | 4.3B × /64 | LACNIC | BR | 6th Feb 2020 |
| 2804:6ad8::/32 | 4.3B × /64 | LACNIC | BR | 13th Feb 2020 |
| 2804:6b1c::/32 | 4.3B × /64 | LACNIC | BR | 18th Feb 2020 |
| 2804:6b24::/32 | 4.3B × /64 | LACNIC | BR | 19th Feb 2020 |
| 2804:6b60::/32 | 4.3B × /64 | LACNIC | BR | 21st Feb 2020 |
| 2804:6bac::/32 | 4.3B × /64 | LACNIC | BR | 27th Feb 2020 |
| 2804:6bc0::/32 | 4.3B × /64 | LACNIC | BR | 28th Feb 2020 |
| 2804:6c88::/32 | 4.3B × /64 | LACNIC | BR | 10th Mar 2020 |
| 2804:6cb8::/32 | 4.3B × /64 | LACNIC | BR | 11th Mar 2020 |
| 2804:6cc0::/32 | 4.3B × /64 | LACNIC | BR | 11th Mar 2020 |
| 2804:6cc8::/32 | 4.3B × /64 | LACNIC | BR | 11th Mar 2020 |
| 2804:6cd4::/32 | 4.3B × /64 | LACNIC | BR | 12th Mar 2020 |
| 2804:6cf4::/32 | 4.3B × /64 | LACNIC | BR | 13th Mar 2020 |
| 2804:6d0c::/32 | 4.3B × /64 | LACNIC | BR | 13th Mar 2020 |
| 2804:6d18::/32 | 4.3B × /64 | LACNIC | BR | 13th Mar 2020 |
| 2804:6d68::/32 | 4.3B × /64 | LACNIC | BR | 19th Mar 2020 |