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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through LACNIC, largest first.
Unannounced blocks in Mexico
651 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 200.36.64.0/19 | 8.2k | LACNIC | 8th Sept 1997 | |
| 200.4.11.0/24 | 256 | LACNIC | 23rd May 1995 | |
| 200.4.12.0/23 | 512 | LACNIC | 31st May 1995 | |
| 200.4.14.0/23 | 512 | LACNIC | 14th Jun 1995 | |
| 200.4.52.0/24 | 256 | LACNIC | 20th Jun 1995 | |
| 200.4.53.0/24 | 256 | LACNIC | 29th Aug 1995 | |
| 200.4.54.0/24 | 256 | LACNIC | 29th Aug 1995 | |
| 200.4.55.0/24 | 256 | LACNIC | 11th Sept 1995 | |
| 200.4.58.0/24 | 256 | LACNIC | 22nd Nov 1995 | |
| 200.4.60.0/22 | 1k | LACNIC | 22nd Nov 1995 | |
| 200.4.64.0/22 | 1k | LACNIC | 20th Jun 1995 | |
| 200.4.72.0/21 | 2k | LACNIC | 31st Oct 1995 | |
| 200.4.9.0/24 | 256 | LACNIC | 9th May 1995 | |
| 200.76.117.0/24 | 256 | LACNIC | 19th Apr 2006 | |
| 200.9.8.0/21 | 2k | LACNIC | 19th May 1993 | |
| 200.90.156.0/22 | 1k | LACNIC | 5th Dec 2008 | |
| 200.94.178.0/24 | 256 | LACNIC | 3rd Aug 2007 | |
| 200.94.179.0/24 | 256 | LACNIC | 3rd Aug 2007 | |
| 200.94.184.0/21 | 2k | LACNIC | 11th Jun 2011 | |
| 2001:1200::/32 | 4.3B × /64 | LACNIC | 10th Jan 2003 | |
| 2001:1202::/32 | 4.3B × /64 | LACNIC | 11th Mar 2024 | |
| 2001:1220::/32 | 4.3B × /64 | LACNIC | 7th Oct 2005 | |
| 2001:1221::/48 | 65.5k × /64 | LACNIC | 18th Jun 2014 | |
| 2001:1228::/32 | 4.3B × /64 | LACNIC | 15th Nov 2005 | |
| 2001:122b::/32 | 4.3B × /64 | LACNIC | 8th Jul 2025 | |
| 2001:122c::/32 | 4.3B × /64 | LACNIC | 28th Dec 2009 | |
| 2001:122e::/32 | 4.3B × /64 | LACNIC | 25th Jul 2025 | |
| 2001:1240::/32 | 4.3B × /64 | LACNIC | 28th Oct 2010 | |
| 2001:1261::/32 | 4.3B × /64 | LACNIC | 7th Aug 2025 | |
| 2001:126a::/32 | 4.3B × /64 | LACNIC | 4th Dec 2025 | |
| 2001:126b::/32 | 4.3B × /64 | LACNIC | 12th Nov 2025 | |
| 2001:13a8::/32 | 4.3B × /64 | LACNIC | 22nd Jul 2005 | |
| 2001:13c7:7014::/48 | 65.5k × /64 | LACNIC | 29th Feb 2012 | |
| 201.129.0.0/16 | 65.5k | LACNIC | 20th Apr 2009 | |
| 201.130.80.0/24 | 256 | LACNIC | 27th Jul 2012 | |
| 201.131.204.0/22 | 1k | LACNIC | 4th Oct 2013 | |
| 201.131.254.0/24 | 256 | LACNIC | 3rd Aug 2007 | |
| 201.131.255.0/24 | 256 | LACNIC | 3rd Aug 2007 | |
| 201.131.33.0/24 | 256 | LACNIC | 11th Dec 2013 | |
| 201.131.52.0/22 | 1k | LACNIC | 23rd Nov 2005 | |
| 201.131.76.0/24 | 256 | LACNIC | 23rd Feb 2007 | |
| 201.135.0.0/16 | 65.5k | LACNIC | 20th Apr 2009 | |
| 201.139.160.0/21 | 2k | LACNIC | 18th Aug 2005 | |
| 201.139.32.0/19 | 8.2k | LACNIC | 4th Jan 2005 | |
| 201.141.128.0/17 | 32.8k | LACNIC | 17th Mar 2006 | |
| 201.148.192.0/20 | 4.1k | LACNIC | 3rd Jul 2009 | |
| 201.150.64.0/20 | 4.1k | LACNIC | 29th Mar 2005 | |
| 201.158.16.0/22 | 1k | LACNIC | 28th Apr 2011 | |
| 201.159.64.0/22 | 1k | LACNIC | 1st Mar 2007 | |
| 201.159.68.0/23 | 512 | LACNIC | 1st Mar 2007 |