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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through LACNIC, largest first.
Unannounced blocks registered through LACNIC
4,655 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 200.23.210.0/23 | 512 | LACNIC |  MX | 19th Dec 1995 |
| 200.23.255.0/24 | 256 | LACNIC |  BR | 22nd Aug 2016 |
| 200.23.3.0/24 | 256 | LACNIC | MX | 1st Feb 1995 |
| 200.23.33.0/24 | 256 | LACNIC | MX | 22nd Apr 1996 |
| 200.23.4.0/24 | 256 | LACNIC | MX | 2nd Feb 1995 |
| 200.23.44.0/23 | 512 | LACNIC | MX | 1st Jun 1995 |
| 200.23.46.0/24 | 256 | LACNIC | MX | 5th Jun 1995 |
| 200.23.47.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.48.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.49.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.50.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.54.0/24 | 256 | LACNIC | MX | 19th Dec 1995 |
| 200.23.55.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.56.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.58.0/24 | 256 | LACNIC | MX | 15th Jun 1995 |
| 200.23.60.0/24 | 256 | LACNIC | MX | 20th Sept 2000 |
| 200.23.61.0/24 | 256 | LACNIC | MX | 11th Jun 2011 |
| 200.23.62.0/24 | 256 | LACNIC | MX | 11th Jun 2011 |
| 200.23.63.0/24 | 256 | LACNIC | MX | 30th Aug 1999 |
| 200.23.66.0/24 | 256 | LACNIC | MX | 26th Dec 1997 |
| 200.23.67.0/24 | 256 | LACNIC | MX | 16th Jan 1996 |
| 200.23.74.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.82.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.83.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.86.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.87.0/24 | 256 | LACNIC | MX | 30th Jan 2002 |
| 200.23.88.0/24 | 256 | LACNIC | MX | 5th Feb 1996 |
| 200.23.89.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.94.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.23.95.0/24 | 256 | LACNIC | MX | 31st Jan 1996 |
| 200.234.8.0/21 | 2k | LACNIC | BR | 16th Oct 2003 |
| 200.24.8.0/24 | 256 | LACNIC |  CO | 21st Mar 1995 |
| 200.24.9.0/24 | 256 | LACNIC | CO | 21st Mar 1995 |
| 200.3.114.0/24 | 256 | LACNIC | BR | 11th Jun 2026 |
| 200.3.115.0/24 | 256 | LACNIC |  AR | 5th Dec 1995 |
| 200.3.128.0/20 | 4.1k | LACNIC | CO | 4th May 1995 |
| 200.3.147.0/24 | 256 | LACNIC | CO | 22nd Jul 2009 |
| 200.3.156.0/22 | 1k | LACNIC | CO | 18th Jul 1995 |
| 200.3.224.0/20 | 4.1k | LACNIC |  HN | 4th May 1995 |
| 200.3.240.0/24 | 256 | LACNIC | HN | 7th Jun 1995 |
| 200.3.8.0/23 | 512 | LACNIC |  VE | 22nd Jun 1994 |
| 200.33.1.0/24 | 256 | LACNIC | MX | 29th Mar 2004 |
| 200.33.106.0/24 | 256 | LACNIC | MX | 26th Mar 1996 |
| 200.33.107.0/24 | 256 | LACNIC | MX | 26th Mar 1996 |
| 200.33.108.0/24 | 256 | LACNIC |  CR | 2nd Jul 2025 |
| 200.33.110.0/24 | 256 | LACNIC | MX | 11th Jun 2011 |
| 200.33.118.0/24 | 256 | LACNIC | MX | 9th May 1996 |
| 200.33.120.0/24 | 256 | LACNIC | MX | 9th May 1996 |
| 200.33.121.0/24 | 256 | LACNIC | MX | 9th May 1996 |
| 200.33.122.0/24 | 256 | LACNIC | MX | 12th May 1996 |