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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
2,802 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.182.198.0/23 | 512 | APNIC |  IN | 28th Feb 2022 |
| 103.183.208.0/23 | 512 | APNIC | IN | 14th Mar 2022 |
| 103.183.36.0/23 | 512 | APNIC | IN | 3rd Mar 2022 |
| 103.183.88.0/23 | 512 | APNIC | IN | 8th Mar 2022 |
| 103.184.118.0/23 | 512 | APNIC | IN | 23rd Mar 2022 |
| 103.184.130.0/23 | 512 | APNIC | IN | 23rd Mar 2022 |
| 103.184.192.0/23 | 512 | APNIC | IN | 25th Mar 2022 |
| 103.184.204.0/24 | 256 | APNIC | IN | 25th Mar 2022 |
| 103.184.36.0/23 | 512 | APNIC | IN | 21st Mar 2022 |
| 103.184.76.0/23 | 512 | APNIC | IN | 22nd Mar 2022 |
| 103.185.198.0/23 | 512 | APNIC | IN | 31st Mar 2022 |
| 103.185.200.0/23 | 512 | APNIC | IN | 31st Mar 2022 |
| 103.185.208.0/23 | 512 | APNIC | IN | 31st Mar 2022 |
| 103.185.213.0/24 | 256 | APNIC | IN | 31st Mar 2022 |
| 103.186.111.0/24 | 256 | APNIC | IN | 19th Apr 2022 |
| 103.186.130.0/23 | 512 | APNIC | IN | 19th Apr 2022 |
| 103.186.16.0/23 | 512 | APNIC | IN | 7th Apr 2022 |
| 103.186.248.0/24 | 256 | APNIC | IN | 4th May 2022 |
| 103.186.42.0/23 | 512 | APNIC | IN | 8th Apr 2022 |
| 103.187.134.0/23 | 512 | APNIC | IN | 17th May 2022 |
| 103.187.142.0/23 | 512 | APNIC | IN | 18th May 2022 |
| 103.187.190.0/23 | 512 | APNIC | IN | 19th May 2022 |
| 103.187.200.0/23 | 512 | APNIC | IN | 19th May 2022 |
| 103.188.179.0/24 | 256 | APNIC | IN | 2nd Jun 2022 |
| 103.188.246.0/23 | 512 | APNIC | IN | 2nd Jun 2022 |
| 103.189.148.0/23 | 512 | APNIC | IN | 13th Jun 2022 |
| 103.189.228.0/24 | 256 | APNIC | IN | 20th Jun 2022 |
| 103.189.3.0/24 | 256 | APNIC | IN | 3rd Jun 2022 |
| 103.189.84.0/23 | 512 | APNIC | IN | 8th Jun 2022 |
| 103.19.212.0/22 | 1k | APNIC | IN | 5th Apr 2013 |
| 103.190.24.0/23 | 512 | APNIC | IN | 24th Jun 2022 |
| 103.190.98.0/23 | 512 | APNIC | IN | 30th Jun 2022 |
| 103.191.138.0/23 | 512 | APNIC | IN | 18th Jul 2022 |
| 103.191.26.0/23 | 512 | APNIC | IN | 11th Jul 2022 |
| 103.192.168.0/22 | 1k | APNIC | IN | 20th Jul 2015 |
| 103.192.220.0/22 | 1k | APNIC | IN | 22nd Jul 2015 |
| 103.192.244.0/22 | 1k | APNIC | IN | 23rd Jul 2015 |
| 103.192.248.0/22 | 1k | APNIC | IN | 23rd Jul 2015 |
| 103.192.60.0/22 | 1k | APNIC | IN | 16th Jul 2015 |
| 103.192.72.0/22 | 1k | APNIC | IN | 16th Jul 2015 |
| 103.193.0.0/22 | 1k | APNIC | IN | 23rd Jul 2015 |
| 103.193.100.0/22 | 1k | APNIC | IN | 28th Jul 2015 |
| 103.193.104.0/22 | 1k | APNIC | IN | 28th Jul 2015 |
| 103.193.108.0/22 | 1k | APNIC | IN | 28th Jul 2015 |
| 103.193.112.0/22 | 1k | APNIC | IN | 28th Jul 2015 |
| 103.193.152.0/22 | 1k | APNIC | IN | 29th Jul 2015 |
| 103.193.156.0/22 | 1k | APNIC | IN | 29th Jul 2015 |
| 103.193.20.0/22 | 1k | APNIC | IN | 24th Jul 2015 |
| 103.193.24.0/22 | 1k | APNIC | IN | 24th Jul 2015 |
| 103.193.28.0/22 | 1k | APNIC | IN | 24th Jul 2015 |