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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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, 301 to 350 of 599
PrefixAddressesRegistryCountryAllocated
2a04:f540::/2934.4B × /64RIPE NCCUS10th Jul 2014
2a05:2300::/2934.4B × /64RIPE NCCUS9th Sept 2014
2a05:2b40::/2934.4B × /64RIPE NCCUS19th Sept 2014
2a05:4b00::/324.3B × /64RIPE NCCUS25th Jan 2022
2a05:85c0::/2934.4B × /64RIPE NCCUS15th Dec 2014
2a05:8680::/2934.4B × /64RIPE NCCUS18th Jun 2018
2a05:8780::/2934.4B × /64RIPE NCCUS16th Dec 2014
2a05:8a80::/2934.4B × /64RIPE NCCUS18th Oct 2019
2a05:9380::/2934.4B × /64RIPE NCCUS18th Jun 2018
2a05:9c80::/2934.4B × /64RIPE NCCUS9th Jan 2015
2a05:c240::/2934.4B × /64RIPE NCCUS19th Jun 2018
2a05:cd40::/2934.4B × /64RIPE NCCUS19th Jun 2018
2a05:eac0::/2934.4B × /64RIPE NCCUS19th Jun 2018
2a06:1400::/2934.4B × /64RIPE NCCUS11th May 2015
2a06:2dc0::/2934.4B × /64RIPE NCCUS10th Jun 2015
2a06:8e40::/2934.4B × /64RIPE NCCUS6th Oct 2015
2a06:8e80::/2934.4B × /64RIPE NCCUS6th Oct 2015
2a06:a240::/2934.4B × /64RIPE NCCUS20th Oct 2015
2a06:a2c0::/2934.4B × /64RIPE NCCUS20th Oct 2015
2a07:1c40::/2934.4B × /64RIPE NCCUS30th May 2022
2a07:23c0::/2934.4B × /64RIPE NCCUS2nd Mar 2016
2a07:2600::/2934.4B × /64RIPE NCCUS3rd Mar 2016
2a07:3980::/2934.4B × /64RIPE NCCUS17th Mar 2016
2a07:4180::/2934.4B × /64RIPE NCCUS29th Mar 2016
2a07:480::/2934.4B × /64RIPE NCCUS22nd May 2026
2a07:5f80::/2934.4B × /64RIPE NCCUS20th Apr 2016
2a07:8940::/2934.4B × /64RIPE NCCUS25th May 2016
2a07:9a40::/2934.4B × /64RIPE NCCUS19th Jun 2019
2a07:aec0::/2934.4B × /64RIPE NCCUS19th Jun 2019
2a07:af40::/2934.4B × /64RIPE NCCUS7th Jul 2016
2a07:b000::/2934.4B × /64RIPE NCCUS8th Jul 2016
2a07:c4c0::/2934.4B × /64RIPE NCCUS29th Jul 2016
2a07:c580::/2934.4B × /64RIPE NCCUS1st Aug 2016
2a07:c6c0::/2934.4B × /64RIPE NCCUS1st Aug 2016
2a07:ccc0::/2934.4B × /64RIPE NCCUS18th Oct 2018
2a07:cd80::/2934.4B × /64RIPE NCCUS18th Oct 2018
2a07:d9c0::/2934.4B × /64RIPE NCCUS2nd Jul 2018
2a07:de00::/2934.4B × /64RIPE NCCUS23rd May 2018
2a07:dec0::/2934.4B × /64RIPE NCCUS3rd Jul 2018
2a07:e540::/2934.4B × /64RIPE NCCUS4th Jul 2018
2a07:ea40::/2934.4B × /64RIPE NCCUS6th Jul 2018
2a07:eb00::/2934.4B × /64RIPE NCCUS24th May 2018
2a07:f180::/2934.4B × /64RIPE NCCUS31st May 2018
2a09:1a80::/2934.4B × /64RIPE NCCUS28th Nov 2018
2a09:200::/2934.4B × /64RIPE NCCUS6th Nov 2018
2a09:4d00::/2934.4B × /64RIPE NCCUS15th Nov 2018
2a09:6b80::/2934.4B × /64RIPE NCCUS12th Dec 2018
2a09:6c80::/324.3B × /64RIPE NCCUS12th Dec 2018
2a09:7580::/2934.4B × /64RIPE NCCUS13th Dec 2018
2a09:7780::/2934.4B × /64RIPE NCCUS13th Dec 2018