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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 unannounced space registered through APNIC, largest first.
Unannounced blocks registered through APNIC
22,592 blocks match, ordered by prefix.
| Prefix | Addresses | Registry | Country | Allocated |
|---|---|---|---|---|
| 2402:bd40::/32 | 4.3B × /64 | APNIC | 12th Apr 2018 | |
| 2402:bdc0::/32 | 4.3B × /64 | APNIC | 12th Apr 2018 | |
| 2402:be00::/32 | 4.3B × /64 | APNIC | 8th Jun 2010 | |
| 2402:be40::/32 | 4.3B × /64 | APNIC | 12th Apr 2018 | |
| 2402:bf40::/32 | 4.3B × /64 | APNIC | 13th Apr 2018 | |
| 2402:bf80::/32 | 4.3B × /64 | APNIC | 12th Aug 2015 | |
| 2402:bfc0::/32 | 4.3B × /64 | APNIC | 13th Apr 2018 | |
| 2402:c080::/31 | 8.6B × /64 | APNIC | 13th Aug 2015 | |
| 2402:c140::/32 | 4.3B × /64 | APNIC | 16th Apr 2018 | |
| 2402:c1c0::/32 | 4.3B × /64 | APNIC | 16th Apr 2018 | |
| 2402:c20::/32 | 4.3B × /64 | APNIC | 21st May 2025 | |
| 2402:c240::/32 | 4.3B × /64 | APNIC | 16th Apr 2018 | |
| 2402:c280::/32 | 4.3B × /64 | APNIC | 14th Aug 2015 | |
| 2402:c380::/32 | 4.3B × /64 | APNIC | 14th Aug 2015 | |
| 2402:c3c0::/32 | 4.3B × /64 | APNIC | 17th Apr 2018 | |
| 2402:c40::/32 | 4.3B × /64 | APNIC | 24th Nov 2017 | |
| 2402:c500::/32 | 4.3B × /64 | APNIC | 28th Dec 2011 | |
| 2402:c580::/32 | 4.3B × /64 | APNIC | 18th Aug 2015 | |
| 2402:c5c0::/32 | 4.3B × /64 | APNIC | 18th Apr 2018 | |
| 2402:c640::/32 | 4.3B × /64 | APNIC | 19th Apr 2018 | |
| 2402:c700::/32 | 4.3B × /64 | APNIC | 29th Dec 2011 | |
| 2402:c740::/32 | 4.3B × /64 | APNIC | 19th Apr 2018 | |
| 2402:c780::/32 | 4.3B × /64 | APNIC | 20th Aug 2015 | |
| 2402:c80::/32 | 4.3B × /64 | APNIC | 13th Feb 2015 | |
| 2402:c880::/32 | 4.3B × /64 | APNIC | 20th Aug 2015 | |
| 2402:c8c0::/32 | 4.3B × /64 | APNIC | 20th Apr 2018 | |
| 2402:c900::/32 | 4.3B × /64 | APNIC | 30th Dec 2011 | |
| 2402:c980::/32 | 4.3B × /64 | APNIC | 20th Aug 2015 | |
| 2402:c9c0::/32 | 4.3B × /64 | APNIC | 23rd Apr 2018 | |
| 2402:ca00::/32 | 4.3B × /64 | APNIC | 8th Jun 2010 | |
| 2402:ca40::/32 | 4.3B × /64 | APNIC | 23rd Apr 2018 | |
| 2402:cb00::/32 | 4.3B × /64 | APNIC | 3rd Jan 2012 | |
| 2402:cb01::/32 | 4.3B × /64 | APNIC | 25th May 2017 | |
| 2402:cc00::/32 | 4.3B × /64 | APNIC | 10th Nov 2009 | |
| 2402:cc40::/32 | 4.3B × /64 | APNIC | 25th Apr 2018 | |
| 2402:cd40::/32 | 4.3B × /64 | APNIC | 26th Apr 2018 | |
| 2402:cdc0::/32 | 4.3B × /64 | APNIC | 26th Apr 2018 | |
| 2402:ce0::/32 | 4.3B × /64 | APNIC | 23rd May 2025 | |
| 2402:ce40::/32 | 4.3B × /64 | APNIC | 26th Apr 2018 | |
| 2402:cf00::/32 | 4.3B × /64 | APNIC | 4th Jan 2012 | |
| 2402:cf40::/32 | 4.3B × /64 | APNIC | 27th Apr 2018 | |
| 2402:d00::/32 | 4.3B × /64 | APNIC | 26th Sept 2011 | |
| 2402:d040::/32 | 4.3B × /64 | APNIC | 28th Apr 2018 | |
| 2402:d080::/32 | 4.3B × /64 | APNIC | 26th Aug 2015 | |
| 2402:d100::/32 | 4.3B × /64 | APNIC | 5th Jan 2012 | |
| 2402:d140::/32 | 4.3B × /64 | APNIC | 1st May 2018 | |
| 2402:d180::/32 | 4.3B × /64 | APNIC | 26th Aug 2015 | |
| 2402:d200::/32 | 4.3B × /64 | APNIC | 15th Jun 2010 | |
| 2402:d300::/32 | 4.3B × /64 | APNIC | 5th Jan 2012 | |
| 2402:d380::/32 | 4.3B × /64 | APNIC | 27th Aug 2015 |