subnet.im

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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 RIPE NCC, largest first.

Unannounced blocks in United States

599 blocks match, ordered by prefix.

Allocated but unannounced blocks, 351 to 400 of 599
PrefixAddressesRegistryCountryAllocated
2a09:7a80::/2934.4B × /64RIPE NCCUS13th Dec 2018
2a09:8500::/2934.4B × /64RIPE NCCUS19th Nov 2018
2a09:8600::/2934.4B × /64RIPE NCCUS9th Nov 2018
2a09:9880::/2934.4B × /64RIPE NCCUS14th Dec 2018
2a09:9c80::/2934.4B × /64RIPE NCCUS12th Jun 2026
2a09:9e80::/2934.4B × /64RIPE NCCUS14th Dec 2018
2a09:b100::/2934.4B × /64RIPE NCCUS22nd Nov 2018
2a09:ba80::/2934.4B × /64RIPE NCCUS18th Dec 2018
2a09:bf00::/2934.4B × /64RIPE NCCUS22nd Nov 2018
2a09:c780::/2934.4B × /64RIPE NCCUS20th Dec 2018
2a09:db80::/2934.4B × /64RIPE NCCUS24th Dec 2018
2a09:e380::/2934.4B × /64RIPE NCCUS27th Dec 2018
2a09:e580::/2934.4B × /64RIPE NCCUS27th Dec 2018
2a09:e640::/2934.4B × /64RIPE NCCUS11th Jul 2025
2a09:e780::/2934.4B × /64RIPE NCCUS27th Dec 2018
2a09:e880::/2934.4B × /64RIPE NCCUS27th Dec 2018
2a09:ef80::/2934.4B × /64RIPE NCCUS28th Dec 2018
2a09:f600::/2934.4B × /64RIPE NCCUS12th Nov 2018
2a09:f700::/2934.4B × /64RIPE NCCUS26th Nov 2018
2a09:f800::/2934.4B × /64RIPE NCCUS1st Nov 2018
2a0a:1040::/2934.4B × /64RIPE NCCUS20th Feb 2017
2a0a:1340::/2934.4B × /64RIPE NCCUS21st Feb 2017
2a0a:15c0::/2934.4B × /64RIPE NCCUS21st Feb 2017
2a0a:40::/2934.4B × /64RIPE NCCUS14th Feb 2017
2a0a:4700::/2934.4B × /64RIPE NCCUS23rd Sept 2016
2a0a:4bc0::/2934.4B × /64RIPE NCCUS15th Mar 2017
2a0a:55c0::/2934.4B × /64RIPE NCCUS20th Mar 2017
2a0a:5d80::/2934.4B × /64RIPE NCCUS16th Jul 2025
2a0a:6e00::/324.3B × /64RIPE NCCUS1st Sept 2016
2a0a:78c0::/2934.4B × /64RIPE NCCUS31st Mar 2017
2a0a:7f00::/2934.4B × /64RIPE NCCUS20th Jul 2026
2a0a:9180::/324.3B × /64RIPE NCCUS30th Nov 2016
2a0a:a00::/324.3B × /64RIPE NCCUS25th Aug 2016
2a0a:a200::/2934.4B × /64RIPE NCCUS2nd Sept 2016
2a0a:a4c0::/2934.4B × /64RIPE NCCUS20th Apr 2017
2a0a:ba40::/2934.4B × /64RIPE NCCUS26th Apr 2017
2a0a:bb40::/2934.4B × /64RIPE NCCUS26th Apr 2017
2a0a:c300::/2934.4B × /64RIPE NCCUS4th Oct 2016
2a0a:c540::/2934.4B × /64RIPE NCCUS2nd May 2017
2a0a:c8c0::/2934.4B × /64RIPE NCCUS20th Dec 2021
2a0a:d900::/324.3B × /64RIPE NCCUS5th Oct 2016
2a0a:e000::/2934.4B × /64RIPE NCCUS8th Aug 2016
2a0a:e080::/2934.4B × /64RIPE NCCUS14th Dec 2016
2a0b:3800::/2934.4B × /64RIPE NCCUS12th Aug 2016
2a0b:3bc0::/324.3B × /64RIPE NCCUS16th Jun 2017
2a0b:6540::/2934.4B × /64RIPE NCCUS4th Jul 2017
2a0b:a100::/324.3B × /64RIPE NCCUS24th Oct 2016
2a0b:a380::/324.3B × /64RIPE NCCUS26th Jan 2017
2a0b:a400::/2934.4B × /64RIPE NCCUS17th Apr 2018
2a0b:a600::/324.3B × /64RIPE NCCUS13th Sept 2016