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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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 the most unannounced blocks, largest first.

Unannounced blocks

85,108 blocks match, ordered by prefix.

Allocated but unannounced blocks, 73051 to 73100 of 85108
PrefixAddressesRegistryCountryAllocated
2a0a:c280::/2934.4B × /64RIPE NCCLT29th Mar 2019
2a0a:c2c0::/2934.4B × /64RIPE NCCPL1st May 2017
2a0a:c300::/2934.4B × /64RIPE NCCUS4th Oct 2016
2a0a:c440::/2934.4B × /64RIPE NCCTR1st May 2017
2a0a:c480::/2934.4B × /64RIPE NCCSA8th Dec 2016
2a0a:c540::/2934.4B × /64RIPE NCCUS2nd May 2017
2a0a:c580::/2934.4B × /64RIPE NCCNL9th Dec 2016
2a0a:c600::/2934.4B × /64RIPE NCCAE2nd Sept 2016
2a0a:c640::/2934.4B × /64RIPE NCCGB2nd May 2017
2a0a:c680::/2934.4B × /64RIPE NCCFR9th Dec 2016
2a0a:c6c0::/2934.4B × /64RIPE NCCES2nd May 2017
2a0a:c700::/2934.4B × /64RIPE NCCNL4th Oct 2016
2a0a:c780::/2934.4B × /64RIPE NCCNL9th Dec 2016
2a0a:c80::/2934.4B × /64RIPE NCCIR3rd Nov 2016
2a0a:c880::/324.3B × /64RIPE NCCSE9th Dec 2016
2a0a:c8c0::/2934.4B × /64RIPE NCCUS20th Dec 2021
2a0a:c900::/2934.4B × /64RIPE NCCDE4th Oct 2016
2a0a:ca80::/2934.4B × /64RIPE NCCTR9th Dec 2016
2a0a:cb00::/2934.4B × /64RIPE NCCFR4th Oct 2016
2a0a:cb40::/2934.4B × /64RIPE NCCGB4th May 2017
2a0a:cc00::/2934.4B × /64RIPE NCCCZ18th Aug 2016
2a0a:cc0::/2934.4B × /64RIPE NCCRU11th Jul 2025
2a0a:ce40::/2934.4B × /64RIPE NCCFR5th May 2017
2a0a:cf00::/2934.4B × /64RIPE NCCSC8th Dec 2021
2a0a:cf80::/2934.4B × /64RIPE NCCAT8th Jun 2020
2a0a:d040::/2934.4B × /64RIPE NCCCY5th May 2017
2a0a:d080::/2934.4B × /64RIPE NCCCZ12th Dec 2016
2a0a:d0c0::/324.3B × /64RIPE NCCRU8th Jun 2020
2a0a:d280::/2934.4B × /64RIPE NCCCH13th Dec 2016
2a0a:d2c0::/2934.4B × /64RIPE NCCGB8th May 2017
2a0a:d300::/2934.4B × /64RIPE NCCIT5th Oct 2016
2a0a:d340::/2934.4B × /64RIPE NCCIR8th May 2017
2a0a:d3c0::/324.3B × /64RIPE NCCIT25th Jul 2025
2a0a:d400::/2934.4B × /64RIPE NCCIR18th Aug 2016
2a0a:d440::/2934.4B × /64RIPE NCCGB14th Jan 2020
2a0a:d480::/2934.4B × /64RIPE NCCDE13th Dec 2016
2a0a:d5c0::/2934.4B × /64RIPE NCCRU20th Jun 2019
2a0a:d600::/2934.4B × /64RIPE NCCCY3rd Jan 2020
2a0a:d700::/324.3B × /64RIPE NCCIT26th Jun 2020
2a0a:d740::/2934.4B × /64RIPE NCCES9th May 2017
2a0a:d780::/2934.4B × /64RIPE NCCRU13th Dec 2016
2a0a:d8c0::/2934.4B × /64RIPE NCCIQ9th May 2017
2a0a:d900::/324.3B × /64RIPE NCCUS5th Oct 2016
2a0a:d940::/2934.4B × /64RIPE NCCIQ9th May 2017
2a0a:d9c0::/2934.4B × /64RIPE NCCES9th May 2017
2a0a:da00::/2934.4B × /64RIPE NCCIT21st Jan 2026
2a0a:da80::/2934.4B × /64RIPE NCCFR9th Jun 2020
2a0a:dac0::/2934.4B × /64RIPE NCCRO9th May 2017
2a0a:db00::/2934.4B × /64RIPE NCCTR22nd Jan 2026
2a0a:dc0::/2934.4B × /64RIPE NCCDE17th Feb 2017