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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 in Brazil
1,567 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2804:210c::/32 | 4.3B × /64 | LACNIC |  BR | 18th Dec 2014 |
| 2804:212c::/32 | 4.3B × /64 | LACNIC | BR | 22nd Dec 2014 |
| 2804:2130::/32 | 4.3B × /64 | LACNIC | BR | 22nd Dec 2014 |
| 2804:2158::/32 | 4.3B × /64 | LACNIC | BR | 6th Jan 2015 |
| 2804:216c::/32 | 4.3B × /64 | LACNIC | BR | 8th Jan 2015 |
| 2804:2188::/32 | 4.3B × /64 | LACNIC | BR | 13th Jan 2015 |
| 2804:218c::/32 | 4.3B × /64 | LACNIC | BR | 13th Jan 2015 |
| 2804:21b8::/32 | 4.3B × /64 | LACNIC | BR | 26th Mar 2018 |
| 2804:2208::/32 | 4.3B × /64 | LACNIC | BR | 4th Feb 2015 |
| 2804:2224::/32 | 4.3B × /64 | LACNIC | BR | 9th Feb 2015 |
| 2804:2260::/32 | 4.3B × /64 | LACNIC | BR | 20th Feb 2015 |
| 2804:2274::/32 | 4.3B × /64 | LACNIC | BR | 3rd Mar 2015 |
| 2804:2284::/32 | 4.3B × /64 | LACNIC | BR | 4th Mar 2015 |
| 2804:2298::/32 | 4.3B × /64 | LACNIC | BR | 6th Mar 2015 |
| 2804:22d4::/32 | 4.3B × /64 | LACNIC | BR | 10th Mar 2015 |
| 2804:2368::/32 | 4.3B × /64 | LACNIC | BR | 19th Mar 2015 |
| 2804:239c::/32 | 4.3B × /64 | LACNIC | BR | 24th Mar 2015 |
| 2804:23c8::/32 | 4.3B × /64 | LACNIC | BR | 27th Mar 2015 |
| 2804:23e0::/32 | 4.3B × /64 | LACNIC | BR | 30th Mar 2015 |
| 2804:23f8::/32 | 4.3B × /64 | LACNIC | BR | 2nd Apr 2015 |
| 2804:2434::/32 | 4.3B × /64 | LACNIC | BR | 9th Apr 2015 |
| 2804:246c::/32 | 4.3B × /64 | LACNIC | BR | 23rd Apr 2015 |
| 2804:2480::/32 | 4.3B × /64 | LACNIC | BR | 28th Apr 2015 |
| 2804:2490::/32 | 4.3B × /64 | LACNIC | BR | 30th Apr 2015 |
| 2804:24::/32 | 4.3B × /64 | LACNIC | BR | 8th May 2009 |
| 2804:24a0::/32 | 4.3B × /64 | LACNIC | BR | 5th May 2015 |
| 2804:24f0::/32 | 4.3B × /64 | LACNIC | BR | 14th May 2015 |
| 2804:24f4::/32 | 4.3B × /64 | LACNIC | BR | 14th May 2015 |
| 2804:251c::/32 | 4.3B × /64 | LACNIC | BR | 22nd May 2015 |
| 2804:2528::/32 | 4.3B × /64 | LACNIC | BR | 27th May 2015 |
| 2804:2544::/32 | 4.3B × /64 | LACNIC | BR | 1st Jun 2015 |
| 2804:25b8::/32 | 4.3B × /64 | LACNIC | BR | 12th Jun 2015 |
| 2804:25c::/32 | 4.3B × /64 | LACNIC | BR | 14th Oct 2010 |
| 2804:25fc::/32 | 4.3B × /64 | LACNIC | BR | 23rd Jun 2015 |
| 2804:263c::/32 | 4.3B × /64 | LACNIC | BR | 26th Jun 2015 |
| 2804:2680::/32 | 4.3B × /64 | LACNIC | BR | 3rd Jul 2015 |
| 2804:26a0::/32 | 4.3B × /64 | LACNIC | BR | 8th Jul 2015 |
| 2804:26b8::/32 | 4.3B × /64 | LACNIC | BR | 15th Jul 2015 |
| 2804:2704::/32 | 4.3B × /64 | LACNIC | BR | 24th Jul 2015 |
| 2804:2798::/32 | 4.3B × /64 | LACNIC | BR | 7th Aug 2015 |
| 2804:27b4::/32 | 4.3B × /64 | LACNIC | BR | 11th Aug 2015 |
| 2804:27bc::/32 | 4.3B × /64 | LACNIC | BR | 12th Aug 2015 |
| 2804:283c::/32 | 4.3B × /64 | LACNIC | BR | 20th Aug 2015 |
| 2804:2844::/32 | 4.3B × /64 | LACNIC | BR | 20th Aug 2015 |
| 2804:2850::/32 | 4.3B × /64 | LACNIC | BR | 21st Aug 2015 |
| 2804:286c::/32 | 4.3B × /64 | LACNIC | BR | 24th Aug 2015 |
| 2804:2878::/32 | 4.3B × /64 | LACNIC | BR | 25th Aug 2015 |
| 2804:2880::/32 | 4.3B × /64 | LACNIC | BR | 26th Aug 2015 |
| 2804:28::/32 | 4.3B × /64 | LACNIC | BR | 2nd Jun 2009 |
| 2804:29dc::/32 | 4.3B × /64 | LACNIC | BR | 24th Sept 2015 |