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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
85,221 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2804:980c::/32 | 4.3B × /64 | LACNIC |  BR | 26th Feb 2026 |
| 2804:9818::/32 | 4.3B × /64 | LACNIC | BR | 3rd Mar 2026 |
| 2804:981c::/32 | 4.3B × /64 | LACNIC | BR | 4th Mar 2026 |
| 2804:982c::/32 | 4.3B × /64 | LACNIC | BR | 6th Mar 2026 |
| 2804:984c::/32 | 4.3B × /64 | LACNIC | BR | 17th Mar 2026 |
| 2804:9864::/32 | 4.3B × /64 | LACNIC | BR | 19th Mar 2026 |
| 2804:986c::/32 | 4.3B × /64 | LACNIC | BR | 23rd Mar 2026 |
| 2804:9890::/32 | 4.3B × /64 | LACNIC | BR | 6th Apr 2026 |
| 2804:9894::/32 | 4.3B × /64 | LACNIC | BR | 6th Apr 2026 |
| 2804:989c::/32 | 4.3B × /64 | LACNIC | BR | 7th Apr 2026 |
| 2804:98a4::/32 | 4.3B × /64 | LACNIC | BR | 8th Apr 2026 |
| 2804:98bc::/32 | 4.3B × /64 | LACNIC | BR | 15th Apr 2026 |
| 2804:98c4::/32 | 4.3B × /64 | LACNIC | BR | 15th Apr 2026 |
| 2804:98d4::/32 | 4.3B × /64 | LACNIC | BR | 27th Apr 2026 |
| 2804:98dc::/32 | 4.3B × /64 | LACNIC | BR | 30th Apr 2026 |
| 2804:98e0::/32 | 4.3B × /64 | LACNIC | BR | 30th Apr 2026 |
| 2804:98f0::/32 | 4.3B × /64 | LACNIC | BR | 5th May 2026 |
| 2804:98f8::/32 | 4.3B × /64 | LACNIC | BR | 12th May 2026 |
| 2804:9904::/32 | 4.3B × /64 | LACNIC | BR | 21st May 2026 |
| 2804:990::/32 | 4.3B × /64 | LACNIC | BR | 27th Apr 2012 |
| 2804:990c::/32 | 4.3B × /64 | LACNIC | BR | 25th May 2026 |
| 2804:9928::/32 | 4.3B × /64 | LACNIC | BR | 8th Jun 2026 |
| 2804:9934::/32 | 4.3B × /64 | LACNIC | BR | 11th Jun 2026 |
| 2804:9938::/32 | 4.3B × /64 | LACNIC | BR | 15th Jun 2026 |
| 2804:993c::/32 | 4.3B × /64 | LACNIC | BR | 15th Jun 2026 |
| 2804:994c::/32 | 4.3B × /64 | LACNIC | BR | 16th Jun 2026 |
| 2804:9950::/32 | 4.3B × /64 | LACNIC | BR | 16th Jun 2026 |
| 2804:9958::/32 | 4.3B × /64 | LACNIC | BR | 17th Jun 2026 |
| 2804:9960::/32 | 4.3B × /64 | LACNIC | BR | 18th Jun 2026 |
| 2804:9968::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jun 2026 |
| 2804:9980::/32 | 4.3B × /64 | LACNIC | BR | 29th Jun 2026 |
| 2804:9984::/32 | 4.3B × /64 | LACNIC | BR | 30th Jun 2026 |
| 2804:9988::/32 | 4.3B × /64 | LACNIC | BR | 30th Jun 2026 |
| 2804:9998::/32 | 4.3B × /64 | LACNIC | BR | 2nd Jul 2026 |
| 2804:99ac::/32 | 4.3B × /64 | LACNIC | BR | 13th Jul 2026 |
| 2804:99b0::/32 | 4.3B × /64 | LACNIC | BR | 15th Jul 2026 |
| 2804:99b8::/32 | 4.3B × /64 | LACNIC | BR | 20th Jul 2026 |
| 2804:99bc::/32 | 4.3B × /64 | LACNIC | BR | 20th Jul 2026 |
| 2804:99c8::/32 | 4.3B × /64 | LACNIC | BR | 22nd Jul 2026 |
| 2804:99dc::/32 | 4.3B × /64 | LACNIC | BR | 27th Jul 2026 |
| 2804:99e8::/32 | 4.3B × /64 | LACNIC | BR | 29th Jul 2026 |
| 2804:99ec::/32 | 4.3B × /64 | LACNIC | BR | 31st Jul 2026 |
| 2804:99f0::/32 | 4.3B × /64 | LACNIC | BR | 3rd Aug 2026 |
| 2804:99f4::/32 | 4.3B × /64 | LACNIC | BR | 3rd Aug 2026 |
| 2804:99f8::/32 | 4.3B × /64 | LACNIC | BR | 4th Aug 2026 |
| 2804:99fc::/32 | 4.3B × /64 | LACNIC | BR | 4th Aug 2026 |
| 2804:9a00::/32 | 4.3B × /64 | LACNIC | BR | 6th Aug 2026 |
| 2804:9a04::/32 | 4.3B × /64 | LACNIC | BR | 7th Aug 2026 |
| 2804:9a08::/32 | 4.3B × /64 | LACNIC | BR | 7th Aug 2026 |
| 2804:9a0::/32 | 4.3B × /64 | LACNIC | BR | 3rd May 2012 |