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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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.
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Countries with the most unannounced blocks, largest first.
Unannounced blocks
84,709 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 102.201.196.0/22 | 1k | AFRINIC |  KE | 30th Jul 2026 |
| 102.201.200.0/22 | 1k | AFRINIC |  AO | 29th Jul 2026 |
| 102.201.210.0/24 | 256 | AFRINIC |  CI | 23rd Jul 2026 |
| 102.201.228.0/22 | 1k | AFRINIC |  ZA | 21st Jul 2026 |
| 102.201.232.0/22 | 1k | AFRINIC |  BW | 20th Jul 2026 |
| 102.201.236.0/22 | 1k | AFRINIC | ZA | 20th Jul 2026 |
| 102.201.240.0/22 | 1k | AFRINIC | KE | 15th Jul 2026 |
| 102.201.244.0/22 | 1k | AFRINIC |  EG | 10th Jul 2026 |
| 102.201.252.0/24 | 256 | AFRINIC |  NG | 21st Jul 2026 |
| 102.201.254.0/23 | 512 | AFRINIC | ZA | 7th Jul 2026 |
| 102.202.0.0/22 | 1k | AFRINIC | AO | 6th Jul 2026 |
| 102.202.104.0/22 | 1k | AFRINIC |  TZ | 18th May 2026 |
| 102.202.11.0/24 | 256 | AFRINIC |  MR | 29th Jun 2026 |
| 102.202.12.0/22 | 1k | AFRINIC | KE | 23rd Jun 2026 |
| 102.202.124.0/22 | 1k | AFRINIC | ZA | 11th May 2026 |
| 102.202.130.0/23 | 512 | AFRINIC | ZA | 13th May 2026 |
| 102.202.140.0/22 | 1k | AFRINIC |  MU | 4th May 2026 |
| 102.202.144.0/22 | 1k | AFRINIC | NG | 4th May 2026 |
| 102.202.154.0/24 | 256 | AFRINIC | KE | 14th May 2026 |
| 102.202.155.0/24 | 256 | AFRINIC | NG | 6th May 2026 |
| 102.202.156.0/22 | 1k | AFRINIC | ZA | 24th Apr 2026 |
| 102.202.160.0/22 | 1k | AFRINIC |  RE | 24th Apr 2026 |
| 102.202.176.0/22 | 1k | AFRINIC | ZA | 20th Apr 2026 |
| 102.202.184.0/22 | 1k | AFRINIC | NG | 17th Apr 2026 |
| 102.202.188.0/24 | 256 | AFRINIC |  RW | 23rd Apr 2026 |
| 102.202.189.0/24 | 256 | AFRINIC | KE | 17th Apr 2026 |
| 102.202.191.0/24 | 256 | AFRINIC | BW | 20th Apr 2026 |
| 102.202.196.0/24 | 256 | AFRINIC |  MZ | 13th Apr 2026 |
| 102.202.198.0/23 | 512 | AFRINIC |  GH | 17th Apr 2026 |
| 102.202.20.0/22 | 1k | AFRINIC | ZA | 23rd Jun 2026 |
| 102.202.200.0/22 | 1k | AFRINIC | ZA | 10th Apr 2026 |
| 102.202.216.0/22 | 1k | AFRINIC | NG | 7th Apr 2026 |
| 102.202.221.0/24 | 256 | AFRINIC | TZ | 8th Apr 2026 |
| 102.202.223.0/24 | 256 | AFRINIC |  MW | 31st Mar 2026 |
| 102.202.24.0/22 | 1k | AFRINIC | ZA | 22nd Jun 2026 |
| 102.202.28.0/22 | 1k | AFRINIC | NG | 22nd Jun 2026 |
| 102.202.36.0/22 | 1k | AFRINIC | ZA | 21st Jun 2026 |
| 102.202.4.0/24 | 256 | AFRINIC | AO | 1st Jul 2026 |
| 102.202.40.0/22 | 1k | AFRINIC | KE | 21st Jun 2026 |
| 102.202.5.0/24 | 256 | AFRINIC |  UG | 8th Jul 2026 |
| 102.202.52.0/24 | 256 | AFRINIC | NG | 23rd Jun 2026 |
| 102.202.54.0/24 | 256 | AFRINIC |  MA | 9th Jun 2026 |
| 102.202.55.0/24 | 256 | AFRINIC | ZA | 11th Jun 2026 |
| 102.202.7.0/24 | 256 | AFRINIC | NG | 29th Jun 2026 |
| 102.202.77.0/24 | 256 | AFRINIC | KE | 5th Jun 2026 |
| 102.202.8.0/23 | 512 | AFRINIC | UG | 24th Jun 2026 |
| 102.202.80.0/22 | 1k | AFRINIC | NG | 20th May 2026 |
| 102.202.88.0/22 | 1k | AFRINIC | TZ | 20th May 2026 |
| 102.203.0.0/24 | 256 | AFRINIC | GH | 3rd Mar 2026 |
| 102.203.1.0/24 | 256 | AFRINIC | AO | 5th Mar 2026 |