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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
84,481 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2801:80:740::/48 | 65.5k × /64 | LACNIC | 9th Aug 2013 | |
| 2801:80:750::/48 | 65.5k × /64 | LACNIC | 12th Aug 2013 | |
| 2801:80:770::/48 | 65.5k × /64 | LACNIC | 20th Aug 2013 | |
| 2801:80:780::/48 | 65.5k × /64 | LACNIC | 20th Aug 2013 | |
| 2801:80:790::/48 | 65.5k × /64 | LACNIC | 21st Aug 2013 | |
| 2801:80:7a0::/48 | 65.5k × /64 | LACNIC | 2nd Sept 2013 | |
| 2801:80:7d0::/48 | 65.5k × /64 | LACNIC | 27th Sept 2013 | |
| 2801:80:7e0::/48 | 65.5k × /64 | LACNIC | 1st Oct 2013 | |
| 2801:80:7f0::/48 | 65.5k × /64 | LACNIC | 8th Oct 2013 | |
| 2801:80:800::/48 | 65.5k × /64 | LACNIC | 11th Nov 2013 | |
| 2801:80:80::/48 | 65.5k × /64 | LACNIC | 24th May 2010 | |
| 2801:80:810::/48 | 65.5k × /64 | LACNIC | 11th Nov 2013 | |
| 2801:80:820::/48 | 65.5k × /64 | LACNIC | 22nd Nov 2013 | |
| 2801:80:830::/48 | 65.5k × /64 | LACNIC | 26th Nov 2013 | |
| 2801:80:840::/48 | 65.5k × /64 | LACNIC | 28th Nov 2013 | |
| 2801:80:870::/48 | 65.5k × /64 | LACNIC | 4th Dec 2013 | |
| 2801:80:880::/48 | 65.5k × /64 | LACNIC | 4th Dec 2013 | |
| 2801:80:890::/48 | 65.5k × /64 | LACNIC | 20th Dec 2013 | |
| 2801:80:8a0::/48 | 65.5k × /64 | LACNIC | 20th Jan 2014 | |
| 2801:80:8c0::/47 | 131k × /64 | LACNIC | 31st Jan 2014 | |
| 2801:80:8d0::/48 | 65.5k × /64 | LACNIC | 3rd Feb 2014 | |
| 2801:80:900::/48 | 65.5k × /64 | LACNIC | 24th Feb 2014 | |
| 2801:80:90::/48 | 65.5k × /64 | LACNIC | 25th May 2010 | |
| 2801:80:920::/48 | 65.5k × /64 | LACNIC | 28th Feb 2014 | |
| 2801:80:960::/48 | 65.5k × /64 | LACNIC | 18th Mar 2014 | |
| 2801:80:970::/48 | 65.5k × /64 | LACNIC | 19th Mar 2014 | |
| 2801:80:980::/48 | 65.5k × /64 | LACNIC | 19th Mar 2014 | |
| 2801:80:9a0::/48 | 65.5k × /64 | LACNIC | 24th Mar 2014 | |
| 2801:80:9b0::/48 | 65.5k × /64 | LACNIC | 1st Apr 2014 | |
| 2801:80:9c0::/48 | 65.5k × /64 | LACNIC | 1st Apr 2014 | |
| 2801:80:9e0::/48 | 65.5k × /64 | LACNIC | 4th Apr 2014 | |
| 2801:80:9f0::/48 | 65.5k × /64 | LACNIC | 11th Apr 2014 | |
| 2801:80::/48 | 65.5k × /64 | LACNIC | 1st Dec 2008 | |
| 2801:80:a0::/48 | 65.5k × /64 | LACNIC | 3rd Sept 2010 | |
| 2801:80:a20::/48 | 65.5k × /64 | LACNIC | 25th Apr 2014 | |
| 2801:80:a30::/48 | 65.5k × /64 | LACNIC | 8th May 2014 | |
| 2801:80:a40::/48 | 65.5k × /64 | LACNIC | 9th May 2014 | |
| 2801:80:a50::/48 | 65.5k × /64 | LACNIC | 20th May 2014 | |
| 2801:80:ab0::/48 | 65.5k × /64 | LACNIC | 4th Jun 2014 | |
| 2801:80:ac0::/48 | 65.5k × /64 | LACNIC | 16th Jun 2014 | |
| 2801:80:b00::/48 | 65.5k × /64 | LACNIC | 23rd Jun 2014 | |
| 2801:80:b0::/48 | 65.5k × /64 | LACNIC | 9th Sept 2010 | |
| 2801:80:b10::/48 | 65.5k × /64 | LACNIC | 24th Jun 2014 | |
| 2801:80:b30::/48 | 65.5k × /64 | LACNIC | 26th Jun 2014 | |
| 2801:80:b60::/48 | 65.5k × /64 | LACNIC | 3rd Jul 2014 | |
| 2801:80:b70::/48 | 65.5k × /64 | LACNIC | 3rd Jul 2014 | |
| 2801:80:ba0::/44 | 1M × /64 | LACNIC | 4th Jul 2014 | |
| 2801:80:bf0::/48 | 65.5k × /64 | LACNIC | 10th Jul 2014 | |
| 2801:80:c00::/48 | 65.5k × /64 | LACNIC | 14th Jul 2014 | |
| 2801:80:c20::/48 | 65.5k × /64 | LACNIC | 15th Jul 2014 |