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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 India
2,832 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 202.40.32.0/19 | 8.2k | APNIC |  IN | 29th Nov 1993 |
| 202.40.64.0/18 | 16.4k | APNIC | IN | 29th Nov 1993 |
| 202.40.8.0/22 | 1k | APNIC | IN | 18th Jul 1994 |
| 202.41.112.0/20 | 4.1k | APNIC | IN | 27th Dec 1995 |
| 202.41.20.0/23 | 512 | APNIC | IN | 24th Feb 1994 |
| 202.41.205.0/24 | 256 | APNIC | IN | 8th Mar 2004 |
| 202.41.206.0/23 | 512 | APNIC | IN | 8th Mar 2004 |
| 202.41.65.0/24 | 256 | APNIC | IN | 23rd Oct 1994 |
| 202.41.66.0/24 | 256 | APNIC | IN | 5th Nov 1994 |
| 202.41.67.0/24 | 256 | APNIC | IN | 8th Feb 1996 |
| 202.41.68.0/24 | 256 | APNIC | IN | 5th Nov 1994 |
| 202.41.69.0/24 | 256 | APNIC | IN | 7th Dec 1994 |
| 202.41.70.0/24 | 256 | APNIC | IN | 25th Feb 1995 |
| 202.41.72.0/22 | 1k | APNIC | IN | 29th Mar 1995 |
| 202.46.192.0/20 | 4.1k | APNIC | IN | 11th Oct 2002 |
| 202.46.208.0/20 | 4.1k | APNIC | IN | 30th Jun 2004 |
| 202.47.127.0/24 | 256 | APNIC | IN | 6th Oct 2004 |
| 202.52.153.0/24 | 256 | APNIC | IN | 16th Aug 2010 |
| 202.52.2.0/23 | 512 | APNIC | IN | 27th Apr 2005 |
| 202.53.142.0/24 | 256 | APNIC | IN | 7th May 2024 |
| 202.53.96.0/20 | 4.1k | APNIC | IN | 9th May 2001 |
| 202.56.56.0/24 | 256 | APNIC | IN | 9th Oct 2023 |
| 202.56.58.0/23 | 512 | APNIC | IN | 24th Jul 2009 |
| 202.58.127.0/24 | 256 | APNIC | IN | 25th Mar 2009 |
| 202.60.208.0/20 | 4.1k | APNIC | IN | 15th Sept 2003 |
| 202.62.244.0/24 | 256 | APNIC | IN | 20th Jul 2009 |
| 202.63.252.0/24 | 256 | APNIC | IN | 9th Jun 2005 |
| 202.66.188.0/22 | 1k | APNIC | IN | 4th Dec 2015 |
| 202.68.128.0/19 | 8.2k | APNIC | IN | 27th Oct 1999 |
| 202.71.152.0/22 | 1k | APNIC | IN | 30th Aug 1999 |
| 202.74.234.0/23 | 512 | APNIC | IN | 2nd Oct 2026 |
| 202.74.53.0/24 | 256 | APNIC | IN | 22nd Nov 2010 |
| 202.77.137.0/24 | 256 | APNIC | IN | 1st Dec 2005 |
| 202.81.192.0/20 | 4.1k | APNIC | IN | 21st Nov 2000 |
| 202.9.160.0/23 | 512 | APNIC | IN | 28th Jan 2000 |
| 202.9.163.0/24 | 256 | APNIC | IN | 28th Jan 2000 |
| 202.9.92.0/23 | 512 | APNIC | IN | 31st May 2010 |
| 202.90.42.0/23 | 512 | APNIC | IN | 9th Feb 2011 |
| 202.93.154.0/24 | 256 | APNIC | IN | 14th Sept 2007 |
| 203.1.72.0/23 | 512 | APNIC | IN | 5th Nov 2026 |
| 203.1.74.0/23 | 512 | APNIC | IN | 6th Nov 2026 |
| 203.112.128.0/22 | 1k | APNIC | IN | 20th Jul 1999 |
| 203.115.94.0/24 | 256 | APNIC | IN | 12th May 2003 |
| 203.119.49.0/24 | 256 | APNIC | IN | 27th Sept 2007 |
| 203.119.50.0/24 | 256 | APNIC | IN | 27th Sept 2007 |
| 203.134.224.0/21 | 2k | APNIC | IN | 27th Mar 2006 |
| 203.15.18.0/23 | 512 | APNIC | IN | 19th Aug 2025 |
| 203.170.60.0/23 | 512 | APNIC | IN | 8th Dec 2008 |
| 203.170.63.0/24 | 256 | APNIC | IN | 9th Dec 2008 |
| 203.171.209.0/24 | 256 | APNIC | IN | 11th Dec 2008 |