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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
84,968 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2c0f:f358::/32 | 4.3B × /64 | AFRINIC |  KE | 26th Oct 2016 |
| 2c0f:f360::/32 | 4.3B × /64 | AFRINIC |  SC | 31st Oct 2016 |
| 2c0f:f3a8::/32 | 4.3B × /64 | AFRINIC |  NG | 18th Nov 2016 |
| 2c0f:f3d8::/32 | 4.3B × /64 | AFRINIC |  CM | 17th Jan 2017 |
| 2c0f:f3e0::/32 | 4.3B × /64 | AFRINIC |  GA | 20th Jan 2017 |
| 2c0f:f420::/32 | 4.3B × /64 | AFRINIC |  CV | 16th Mar 2015 |
| 2c0f:f440::/32 | 4.3B × /64 | AFRINIC |  ZA | 5th May 2015 |
| 2c0f:f448::/32 | 4.3B × /64 | AFRINIC | ZA | 8th May 2015 |
| 2c0f:f480::/32 | 4.3B × /64 | AFRINIC | ZA | 5th Jun 2015 |
| 2c0f:f490::/32 | 4.3B × /64 | AFRINIC |  GH | 12th Jun 2015 |
| 2c0f:f4d0::/32 | 4.3B × /64 | AFRINIC |  CI | 7th Aug 2015 |
| 2c0f:f4d8::/32 | 4.3B × /64 | AFRINIC | CM | 11th Aug 2015 |
| 2c0f:f4e0::/32 | 4.3B × /64 | AFRINIC | ZA | 4th Sept 2015 |
| 2c0f:f4f0::/32 | 4.3B × /64 | AFRINIC | ZA | 15th Sept 2015 |
| 2c0f:f500::/32 | 4.3B × /64 | AFRINIC | ZA | 25th Sept 2015 |
| 2c0f:f518::/32 | 4.3B × /64 | AFRINIC |  LY | 21st Oct 2015 |
| 2c0f:f520::/32 | 4.3B × /64 | AFRINIC | NG | 21st Oct 2015 |
| 2c0f:f550::/32 | 4.3B × /64 | AFRINIC |  MU | 25th Nov 2015 |
| 2c0f:f558::/32 | 4.3B × /64 | AFRINIC |  CD | 26th Nov 2015 |
| 2c0f:f5a0::/32 | 4.3B × /64 | AFRINIC | NG | 26th Feb 2016 |
| 2c0f:f5a8::/32 | 4.3B × /64 | AFRINIC | ZA | 26th Feb 2016 |
| 2c0f:f5b0::/32 | 4.3B × /64 | AFRINIC | ZA | 9th Mar 2016 |
| 2c0f:f5c8::/32 | 4.3B × /64 | AFRINIC |  TD | 11th Apr 2016 |
| 2c0f:f5f8::/32 | 4.3B × /64 | AFRINIC |  TN | 4th May 2016 |
| 2c0f:f600::/32 | 4.3B × /64 | AFRINIC |  GN | 17th Sept 2013 |
| 2c0f:f610::/32 | 4.3B × /64 | AFRINIC | ZA | 30th Sept 2013 |
| 2c0f:f618::/32 | 4.3B × /64 | AFRINIC | GH | 10th Oct 2013 |
| 2c0f:f620::/32 | 4.3B × /64 | AFRINIC | KE | 29th Oct 2013 |
| 2c0f:f628::/32 | 4.3B × /64 | AFRINIC |  RW | 8th Nov 2013 |
| 2c0f:f638::/32 | 4.3B × /64 | AFRINIC | NG | 21st Nov 2013 |
| 2c0f:f678::/32 | 4.3B × /64 | AFRINIC |  BW | 16th Dec 2013 |
| 2c0f:f690::/32 | 4.3B × /64 | AFRINIC |  SS | 13th Jan 2014 |
| 2c0f:f6a8::/32 | 4.3B × /64 | AFRINIC |  BI | 10th Feb 2014 |
| 2c0f:f6b0::/32 | 4.3B × /64 | AFRINIC |  TZ | 12th Feb 2014 |
| 2c0f:f6c8::/32 | 4.3B × /64 | AFRINIC | CM | 11th Mar 2014 |
| 2c0f:f6e8::/32 | 4.3B × /64 | AFRINIC | ZA | 27th Mar 2014 |
| 2c0f:f6f8::/32 | 4.3B × /64 | AFRINIC | ZA | 24th Apr 2014 |
| 2c0f:f728::/32 | 4.3B × /64 | AFRINIC | BW | 20th Jun 2014 |
| 2c0f:f730::/32 | 4.3B × /64 | AFRINIC | TZ | 10th Jul 2014 |
| 2c0f:f740::/32 | 4.3B × /64 | AFRINIC |  AO | 26th Aug 2014 |
| 2c0f:f760::/32 | 4.3B × /64 | AFRINIC | ZA | 12th Sept 2014 |
| 2c0f:f770::/32 | 4.3B × /64 | AFRINIC |  BJ | 2nd Oct 2014 |
| 2c0f:f780::/32 | 4.3B × /64 | AFRINIC | ZA | 26th Sept 2014 |
| 2c0f:f7a0::/32 | 4.3B × /64 | AFRINIC |  ZW | 13th Oct 2014 |
| 2c0f:f7c8::/32 | 4.3B × /64 | AFRINIC | TN | 19th Dec 2014 |
| 2c0f:f7d0::/32 | 4.3B × /64 | AFRINIC | CM | 29th Oct 2020 |
| 2c0f:f7d8::/32 | 4.3B × /64 | AFRINIC | TZ | 12th Jan 2015 |
| 2c0f:f838::/32 | 4.3B × /64 | AFRINIC | ZA | 24th Jul 2012 |
| 2c0f:f840::/32 | 4.3B × /64 | AFRINIC |  GQ | 30th Jul 2012 |
| 2c0f:f890::/32 | 4.3B × /64 | AFRINIC |  GM | 22nd Oct 2012 |