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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 APNIC, largest first.
Unannounced blocks registered through APNIC
22,580 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 160.30.198.0/23 | 512 | APNIC |  CN | 27th Aug 2024 |
| 160.30.2.0/23 | 512 | APNIC |  PH | 21st Jul 2024 |
| 160.30.226.0/23 | 512 | APNIC |  MY | 30th Aug 2024 |
| 160.30.244.0/23 | 512 | APNIC |  IN | 3rd Sept 2024 |
| 160.30.254.0/23 | 512 | APNIC |  VN | 5th Sept 2024 |
| 160.30.28.0/23 | 512 | APNIC | IN | 29th Jul 2024 |
| 160.30.40.0/23 | 512 | APNIC | CN | 30th Jul 2024 |
| 160.30.44.0/23 | 512 | APNIC | VN | 1st Aug 2024 |
| 160.30.66.0/23 | 512 | APNIC |  MM | 8th Aug 2024 |
| 160.30.7.0/24 | 256 | APNIC | IN | 22nd Jul 2024 |
| 160.30.76.0/23 | 512 | APNIC |  HK | 8th Aug 2024 |
| 160.30.88.0/23 | 512 | APNIC | VN | 9th Aug 2024 |
| 160.30.92.0/23 | 512 | APNIC | PH | 11th Aug 2024 |
| 160.64.0.0/16 | 65.5k | APNIC |  AU | 23rd Apr 1992 |
| 161.248.104.0/24 | 256 | APNIC |  MN | 6th Jan 2025 |
| 161.248.107.0/24 | 256 | APNIC |  ID | 8th Jan 2025 |
| 161.248.110.0/23 | 512 | APNIC | CN | 7th Jan 2025 |
| 161.248.126.0/24 | 256 | APNIC | PH | 8th Jan 2025 |
| 161.248.16.0/23 | 512 | APNIC |  BD | 23rd Dec 2024 |
| 161.248.195.0/24 | 256 | APNIC | ID | 16th Jan 2025 |
| 161.248.196.0/23 | 512 | APNIC | VN | 16th Jan 2025 |
| 161.248.20.0/23 | 512 | APNIC | CN | 23rd Dec 2024 |
| 161.248.207.0/24 | 256 | APNIC | ID | 20th Jan 2025 |
| 161.248.214.0/23 | 512 | APNIC |  SG | 19th Jan 2025 |
| 161.248.240.0/24 | 256 | APNIC | ID | 21st Jan 2025 |
| 161.248.42.0/23 | 512 | APNIC | CN | 26th Dec 2024 |
| 161.248.48.0/23 | 512 | APNIC | IN | 26th Dec 2024 |
| 161.248.9.0/24 | 256 | APNIC | MY | 20th Dec 2024 |
| 161.248.92.0/23 | 512 | APNIC | CN | 3rd Jan 2025 |
| 161.75.0.0/16 | 65.5k | APNIC |  JP | 13th Mar 1996 |
| 161.93.0.0/16 | 65.5k | APNIC | JP | 23rd Jun 1992 |
| 161.94.0.0/15 | 131k | APNIC | JP | 23rd Jun 1992 |
| 161.96.0.0/16 | 65.5k | APNIC | JP | 23rd Jun 1992 |
| 162.12.240.0/22 | 1k | APNIC | AU | 13th Dec 2018 |
| 162.146.0.0/15 | 131k | APNIC | AU | 6th Jan 1993 |
| 162.249.119.0/24 | 256 | APNIC |  US | 3rd Dec 2013 |
| 162.4.104.0/23 | 512 | APNIC | US | 11th May 2026 |
| 162.4.106.0/24 | 256 | APNIC |  NP | 11th May 2026 |
| 162.4.107.0/24 | 256 | APNIC | ID | 13th May 2026 |
| 162.4.108.0/23 | 512 | APNIC | IN | 11th May 2026 |
| 162.4.110.0/23 | 512 | APNIC | IN | 11th May 2026 |
| 162.4.114.0/23 | 512 | APNIC | HK | 12th May 2026 |
| 162.4.120.0/23 | 512 | APNIC |  TW | 13th May 2026 |
| 162.4.130.0/23 | 512 | APNIC | IN | 14th May 2026 |
| 162.4.150.0/23 | 512 | APNIC |  PK | 20th May 2026 |
| 162.4.156.0/23 | 512 | APNIC | IN | 20th May 2026 |
| 162.4.158.0/23 | 512 | APNIC | ID | 20th May 2026 |
| 162.4.160.0/23 | 512 | APNIC | VN | 21st May 2026 |
| 162.4.164.0/23 | 512 | APNIC | IN | 21st May 2026 |
| 162.4.167.0/24 | 256 | APNIC | ID | 25th May 2026 |