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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 |
|---|---|---|---|---|
| 160.236.46.0/23 | 512 | APNIC |  IN | 30th Jun 2026 |
| 160.236.54.0/24 | 256 | APNIC | IN | 1st Jul 2026 |
| 160.236.6.0/23 | 512 | APNIC | IN | 18th Jun 2026 |
| 160.236.65.0/24 | 256 | APNIC | IN | 6th Jul 2026 |
| 160.238.88.0/22 | 1k | APNIC | IN | 15th Mar 2016 |
| 160.25.122.0/23 | 512 | APNIC | IN | 5th Jul 2024 |
| 160.25.64.0/23 | 512 | APNIC | IN | 1st Jul 2024 |
| 160.25.90.0/23 | 512 | APNIC | IN | 3rd Jul 2024 |
| 160.250.146.0/23 | 512 | APNIC | IN | 2nd Dec 2024 |
| 160.250.208.0/23 | 512 | APNIC | IN | 11th Dec 2024 |
| 160.250.236.0/23 | 512 | APNIC | IN | 17th Dec 2024 |
| 160.30.244.0/23 | 512 | APNIC | IN | 3rd Sept 2024 |
| 160.30.28.0/23 | 512 | APNIC | IN | 29th Jul 2024 |
| 162.4.108.0/23 | 512 | APNIC | IN | 11th May 2026 |
| 162.4.110.0/23 | 512 | APNIC | IN | 11th May 2026 |
| 162.4.164.0/23 | 512 | APNIC | IN | 21st May 2026 |
| 162.4.234.0/23 | 512 | APNIC | IN | 11th Jun 2026 |
| 162.4.244.0/23 | 512 | APNIC | IN | 12th Jun 2026 |
| 162.4.74.0/23 | 512 | APNIC | IN | 3rd May 2026 |
| 162.4.93.0/24 | 256 | APNIC | IN | 8th May 2026 |
| 162.56.0.0/16 | 65.5k | APNIC | IN | 4th Aug 1992 |
| 163.128.12.0/23 | 512 | APNIC | IN | 5th Mar 2026 |
| 163.128.168.0/23 | 512 | APNIC | IN | 7th Apr 2026 |
| 163.128.224.0/23 | 512 | APNIC | IN | 13th Apr 2026 |
| 163.128.228.0/23 | 512 | APNIC | IN | 14th Apr 2026 |
| 163.128.232.0/23 | 512 | APNIC | IN | 14th Apr 2026 |
| 163.128.250.0/23 | 512 | APNIC | IN | 17th Apr 2026 |
| 163.128.46.0/23 | 512 | APNIC | IN | 11th Mar 2026 |
| 163.128.67.0/24 | 256 | APNIC | IN | 16th Mar 2026 |
| 163.128.68.0/24 | 256 | APNIC | IN | 16th Mar 2026 |
| 163.128.84.0/23 | 512 | APNIC | IN | 18th Mar 2026 |
| 163.223.170.0/23 | 512 | APNIC | IN | 20th Mar 2025 |
| 163.223.242.0/23 | 512 | APNIC | IN | 4th Apr 2025 |
| 163.223.252.0/23 | 512 | APNIC | IN | 8th Apr 2025 |
| 163.223.82.0/23 | 512 | APNIC | IN | 11th Mar 2025 |
| 163.227.200.0/24 | 256 | APNIC | IN | 30th Apr 2025 |
| 163.227.204.0/24 | 256 | APNIC | IN | 1st May 2025 |
| 163.227.210.0/23 | 512 | APNIC | IN | 1st May 2025 |
| 163.227.222.0/23 | 512 | APNIC | IN | 2nd May 2025 |
| 163.47.152.0/22 | 1k | APNIC | IN | 30th May 2014 |
| 163.52.104.0/23 | 512 | APNIC | IN | 3rd Sept 2026 |
| 163.52.112.0/23 | 512 | APNIC | IN | 4th Sept 2026 |
| 163.52.116.0/23 | 512 | APNIC | IN | 6th Sept 2026 |
| 163.52.170.0/23 | 512 | APNIC | IN | 13th Sept 2026 |
| 163.52.186.0/24 | 256 | APNIC | IN | 15th Sept 2026 |
| 163.52.208.0/23 | 512 | APNIC | IN | 17th Sept 2026 |
| 163.52.234.0/23 | 512 | APNIC | IN | 22nd Sept 2026 |
| 163.52.248.0/23 | 512 | APNIC | IN | 24th Sept 2026 |
| 163.52.36.0/23 | 512 | APNIC | IN | 20th Aug 2026 |
| 163.52.38.0/24 | 256 | APNIC | IN | 21st Aug 2026 |