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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

85,346 blocks match, ordered by prefix.

Allocated but unannounced blocks, 36301 to 36350 of 85346
PrefixAddressesRegistryCountryAllocated
2001:67c:247c::/4865.5k × /64RIPE NCCSI13th Sept 2011
2001:67c:2484::/4865.5k × /64RIPE NCCSE14th Sept 2011
2001:67c:248::/4865.5k × /64RIPE NCCAT17th Jun 2010
2001:67c:2490::/4865.5k × /64RIPE NCCSI22nd Sept 2011
2001:67c:2494::/4865.5k × /64RIPE NCCCZ23rd Sept 2011
2001:67c:249c::/4865.5k × /64RIPE NCCPL23rd Sept 2011
2001:67c:24a8::/4865.5k × /64RIPE NCCUA27th Sept 2011
2001:67c:24b0::/4865.5k × /64RIPE NCCDE17th Jul 2015
2001:67c:24b4::/4865.5k × /64RIPE NCCNL3rd Oct 2011
2001:67c:24c0::/4865.5k × /64RIPE NCCNL21st Jul 2015
2001:67c:24c8::/4865.5k × /64RIPE NCCRU5th Oct 2011
2001:67c:24cc::/4865.5k × /64RIPE NCCPL5th Oct 2011
2001:67c:24d0::/4865.5k × /64RIPE NCCRU6th Oct 2011
2001:67c:24d4::/4865.5k × /64RIPE NCCDE11th Oct 2011
2001:67c:24dc::/4865.5k × /64RIPE NCCSI13th Oct 2011
2001:67c:24e0::/4865.5k × /64RIPE NCCDK13th Oct 2011
2001:67c:24f0::/4865.5k × /64RIPE NCCNL17th Oct 2011
2001:67c:2500::/45524k × /64RIPE NCCNL17th Oct 2011
2001:67c:250::/4865.5k × /64RIPE NCCDE25th Jun 2010
2001:67c:2520::/4865.5k × /64RIPE NCCDE24th Oct 2011
2001:67c:2528::/4865.5k × /64RIPE NCCLV25th Oct 2011
2001:67c:2530::/4865.5k × /64RIPE NCCSE23rd Jul 2015
2001:67c:2538::/4865.5k × /64RIPE NCCSE26th Oct 2011
2001:67c:2540::/4865.5k × /64RIPE NCCCH27th Oct 2011
2001:67c:2568::/4865.5k × /64RIPE NCCRU5th Jun 2026
2001:67c:2570::/4865.5k × /64RIPE NCCLI27th Jul 2015
2001:67c:2578::/4865.5k × /64RIPE NCCRU24th Mar 2019
2001:67c:257c::/4865.5k × /64RIPE NCCDK11th Nov 2011
2001:67c:2584::/4865.5k × /64RIPE NCCRO11th Nov 2011
2001:67c:2588::/4865.5k × /64RIPE NCCAT14th Nov 2011
2001:67c:2590::/4865.5k × /64RIPE NCCDE15th Nov 2011
2001:67c:259c::/4865.5k × /64RIPE NCCAE16th Nov 2011
2001:67c:25c8::/4865.5k × /64RIPE NCCRU29th Jul 2015
2001:67c:25d4::/4865.5k × /64RIPE NCCDE6th Dec 2011
2001:67c:25d8::/4865.5k × /64RIPE NCCSI6th Dec 2011
2001:67c:25e0::/4865.5k × /64RIPE NCCAT29th Jul 2015
2001:67c:25ec::/4865.5k × /64RIPE NCCRU23rd Jul 2026
2001:67c:25f0::/4865.5k × /64RIPE NCCES29th Jul 2015
2001:67c:25f4::/4865.5k × /64RIPE NCCUA9th Dec 2011
2001:67c:25f8::/4865.5k × /64RIPE NCCUS12th Dec 2011
2001:67c:25fc::/4865.5k × /64RIPE NCCAT13th Dec 2011
2001:67c:260c::/4865.5k × /64RIPE NCCAT15th Dec 2011
2001:67c:2614::/4865.5k × /64RIPE NCCCH16th Dec 2011
2001:67c:2618::/4865.5k × /64RIPE NCCEE20th Dec 2011
2001:67c:2624::/4865.5k × /64RIPE NCCRU23rd Oct 2023
2001:67c:2630::/4865.5k × /64RIPE NCCGB10th Jan 2012
2001:67c:2638::/4865.5k × /64RIPE NCCSK13th Jan 2012
2001:67c:263c::/4865.5k × /64RIPE NCCRU3rd Feb 2021
2001:67c:264::/4865.5k × /64RIPE NCCAT5th Jul 2010
2001:67c:2654::/4865.5k × /64RIPE NCCAE19th Jan 2012