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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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
22,575 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 103.79.21.0/24 | 256 | APNIC |  IN | 11th Nov 2016 |
| 103.79.212.0/22 | 1k | APNIC |  CN | 21st Nov 2016 |
| 103.79.28.0/22 | 1k | APNIC | CN | 11th Nov 2016 |
| 103.79.36.0/22 | 1k | APNIC | CN | 11th Nov 2016 |
| 103.79.40.0/22 | 1k | APNIC | CN | 11th Nov 2016 |
| 103.79.44.0/22 | 1k | APNIC | CN | 11th Nov 2016 |
| 103.79.56.0/22 | 1k | APNIC | CN | 14th Nov 2016 |
| 103.79.60.0/22 | 1k | APNIC | CN | 14th Nov 2016 |
| 103.79.64.0/22 | 1k | APNIC | CN | 14th Nov 2016 |
| 103.79.68.0/22 | 1k | APNIC | CN | 14th Nov 2016 |
| 103.79.80.0/22 | 1k | APNIC | CN | 15th Nov 2016 |
| 103.79.84.0/22 | 1k | APNIC | CN | 15th Nov 2016 |
| 103.79.97.0/24 | 256 | APNIC | IN | 16th Nov 2016 |
| 103.8.0.0/22 | 1k | APNIC | CN | 23rd Jun 2016 |
| 103.8.108.0/22 | 1k | APNIC | CN | 18th Apr 2012 |
| 103.8.122.0/24 | 256 | APNIC |  ID | 26th Apr 2012 |
| 103.8.123.0/24 | 256 | APNIC | IN | 26th Apr 2012 |
| 103.8.13.0/24 | 256 | APNIC |  VN | 12th Apr 2012 |
| 103.8.152.0/22 | 1k | APNIC |  SG | 23rd Apr 2012 |
| 103.8.156.0/22 | 1k | APNIC | CN | 24th Apr 2012 |
| 103.8.168.0/22 | 1k | APNIC |  AU | 24th Apr 2012 |
| 103.8.200.0/22 | 1k | APNIC | CN | 26th Apr 2012 |
| 103.8.204.0/22 | 1k | APNIC | CN | 27th Apr 2012 |
| 103.8.240.0/22 | 1k | APNIC |  KH | 1st May 2012 |
| 103.8.244.0/22 | 1k | APNIC | ID | 2nd May 2012 |
| 103.8.4.0/22 | 1k | APNIC | CN | 10th Apr 2012 |
| 103.8.48.0/22 | 1k | APNIC |  JP | 12th Apr 2012 |
| 103.8.60.0/24 | 256 | APNIC |  MN | 13th Apr 2012 |
| 103.8.74.0/23 | 512 | APNIC | ID | 16th Apr 2012 |
| 103.8.78.0/23 | 512 | APNIC | ID | 16th Apr 2012 |
| 103.8.8.0/22 | 1k | APNIC | CN | 10th Apr 2012 |
| 103.80.104.0/22 | 1k | APNIC | JP | 29th Nov 2016 |
| 103.80.130.0/24 | 256 | APNIC | IN | 30th Nov 2016 |
| 103.80.164.0/24 | 256 | APNIC | AU | 1st Dec 2016 |
| 103.80.176.0/22 | 1k | APNIC | CN | 2nd Dec 2016 |
| 103.80.180.0/22 | 1k | APNIC | CN | 2nd Dec 2016 |
| 103.80.184.0/22 | 1k | APNIC | CN | 2nd Dec 2016 |
| 103.80.192.0/22 | 1k | APNIC | CN | 2nd Dec 2016 |
| 103.80.200.0/22 | 1k | APNIC | CN | 2nd Dec 2016 |
| 103.80.204.0/22 | 1k | APNIC | JP | 5th Dec 2016 |
| 103.80.209.0/24 | 256 | APNIC | AU | 6th Dec 2016 |
| 103.80.212.0/23 | 512 | APNIC | ID | 2nd Feb 2023 |
| 103.80.232.0/22 | 1k | APNIC | CN | 5th Dec 2016 |
| 103.80.250.0/24 | 256 | APNIC | IN | 6th Dec 2016 |
| 103.80.252.0/23 | 512 | APNIC |  HK | 6th Dec 2016 |
| 103.80.44.0/22 | 1k | APNIC | CN | 24th Nov 2016 |
| 103.80.72.0/22 | 1k | APNIC | CN | 28th Nov 2016 |
| 103.81.136.0/24 | 256 | APNIC |  NP | 13th Dec 2016 |
| 103.81.148.0/22 | 1k | APNIC | CN | 13th Dec 2016 |
| 103.81.16.0/22 | 1k | APNIC | CN | 6th Dec 2016 |