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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 2407:6840::/32 | 4.3B × /64 | APNIC |  IN | 19th May 2021 |
| 2407:68c0::/32 | 4.3B × /64 | APNIC | IN | 19th May 2021 |
| 2407:6980::/32 | 4.3B × /64 | APNIC | IN | 30th Sept 2016 |
| 2407:740::/32 | 4.3B × /64 | APNIC | IN | 13th Jan 2021 |
| 2407:7440::/32 | 4.3B × /64 | APNIC | IN | 3rd Jun 2021 |
| 2407:8080::/32 | 4.3B × /64 | APNIC | IN | 11th Oct 2016 |
| 2407:8340::/32 | 4.3B × /64 | APNIC | IN | 10th Jun 2021 |
| 2407:8a40::/32 | 4.3B × /64 | APNIC | IN | 14th Jun 2021 |
| 2407:9340::/32 | 4.3B × /64 | APNIC | IN | 17th Jun 2021 |
| 2407:9640::/32 | 4.3B × /64 | APNIC | IN | 21st Jun 2021 |
| 2407:9840::/32 | 4.3B × /64 | APNIC | IN | 22nd Jun 2021 |
| 2407:9d40::/32 | 4.3B × /64 | APNIC | IN | 30th Jun 2021 |
| 2407:a780::/32 | 4.3B × /64 | APNIC | IN | 31st Oct 2016 |
| 2407:aac0::/32 | 4.3B × /64 | APNIC | IN | 20th Jul 2021 |
| 2407:b440::/32 | 4.3B × /64 | APNIC | IN | 28th Jul 2021 |
| 2407:b8c0::/32 | 4.3B × /64 | APNIC | IN | 2nd Aug 2021 |
| 2407:b900::/32 | 4.3B × /64 | APNIC | IN | 8th Aug 2013 |
| 2407:b940::/32 | 4.3B × /64 | APNIC | IN | 2nd Aug 2021 |
| 2407:be40::/32 | 4.3B × /64 | APNIC | IN | 6th Aug 2021 |
| 2407:c440::/32 | 4.3B × /64 | APNIC | IN | 11th Aug 2021 |
| 2407:c4c0::/32 | 4.3B × /64 | APNIC | IN | 11th Aug 2021 |
| 2407:c740::/32 | 4.3B × /64 | APNIC | IN | 16th Aug 2021 |
| 2407:cb40::/32 | 4.3B × /64 | APNIC | IN | 24th Aug 2021 |
| 2407:d640::/32 | 4.3B × /64 | APNIC | IN | 31st Aug 2021 |
| 2407:da00::/32 | 4.3B × /64 | APNIC | IN | 24th Mar 2011 |
| 2407:e040::/32 | 4.3B × /64 | APNIC | IN | 10th Sept 2021 |
| 2407:e140::/32 | 4.3B × /64 | APNIC | IN | 13th Sept 2021 |
| 2407:e240::/32 | 4.3B × /64 | APNIC | IN | 13th Sept 2021 |
| 2407:e440::/32 | 4.3B × /64 | APNIC | IN | 16th Sept 2021 |
| 2407:e840::/32 | 4.3B × /64 | APNIC | IN | 21st Sept 2021 |
| 2407:e880::/32 | 4.3B × /64 | APNIC | IN | 7th Nov 2016 |
| 2407:eec0::/32 | 4.3B × /64 | APNIC | IN | 27th Sept 2021 |
| 2407:f0c0::/32 | 4.3B × /64 | APNIC | IN | 28th Sept 2021 |
| 2407:f8c0::/32 | 4.3B × /64 | APNIC | IN | 5th Oct 2021 |
| 2407:f940::/32 | 4.3B × /64 | APNIC | IN | 5th Oct 2021 |
| 2407:f9c0::/32 | 4.3B × /64 | APNIC | IN | 5th Oct 2021 |
| 2407:fd40::/32 | 4.3B × /64 | APNIC | IN | 7th Oct 2021 |
| 27.0.136.0/22 | 1k | APNIC | IN | 29th Jan 2016 |
| 27.0.252.0/22 | 1k | APNIC | IN | 3rd Feb 2016 |
| 27.112.96.0/23 | 512 | APNIC | IN | 1st Oct 2026 |
| 27.123.227.0/24 | 256 | APNIC | IN | 13th Aug 2026 |
| 27.248.0.0/14 | 262k | APNIC | IN | 24th Mar 2010 |
| 27.98.194.0/23 | 512 | APNIC | IN | 28th Oct 2026 |
| 27.98.196.0/23 | 512 | APNIC | IN | 28th Oct 2026 |
| 27.98.198.0/23 | 512 | APNIC | IN | 28th Oct 2026 |
| 27.98.204.0/23 | 512 | APNIC | IN | 28th Oct 2026 |
| 27.98.206.0/23 | 512 | APNIC | IN | 28th Oct 2026 |
| 2a02:e480::/29 | 34.4B × /64 | RIPE NCC | IN | 23rd Jun 2025 |
| 2a05:28c0::/29 | 34.4B × /64 | RIPE NCC | IN | 15th Sept 2014 |
| 2a06:5000::/29 | 34.4B × /64 | RIPE NCC | IN | 15th Jul 2015 |