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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

710 blocks match, ordered by prefix.

Allocated but unannounced blocks, 101 to 150 of 710
PrefixAddressesRegistryCountryAllocated
2001:39c0::/2934.4B × /64RIPE NCCIR18th Sept 2024
2001:3ec0::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f40::/2934.4B × /64RIPE NCCIR24th Sept 2024
2001:3f80::/2934.4B × /64RIPE NCCIR9th Dec 2025
2001:4c88::/324.3B × /64RIPE NCCIR17th May 2005
2001:678:428::/4865.5k × /64RIPE NCCIR12th Mar 2024
2001:678:b0::/46262k × /64RIPE NCCIR15th Apr 2015
2001:67c:1158::/4865.5k × /64RIPE NCCIR24th May 2023
2001:67c:1194::/4865.5k × /64RIPE NCCIR7th Jun 2023
2001:67c:2728::/4865.5k × /64RIPE NCCIR23rd Feb 2012
2001:67c:c3c::/4865.5k × /64RIPE NCCIR21st Apr 2026
2001:67c:d98::/4865.5k × /64RIPE NCCIR18th Jan 2024
2001:67c:db8::/4865.5k × /64RIPE NCCIR31st Jan 2024
2001:790::/324.3B × /64RIPE NCCIR14th Jun 2005
2001:7f8:a8::/4865.5k × /64RIPE NCCIR26th Jul 2016
212.108.102.0/24256RIPE NCCIR28th Jul 2025
212.108.127.0/24256RIPE NCCIR30th Jul 2025
212.6.33.0/24256RIPE NCCIR19th Aug 2026
213.195.48.0/221kRIPE NCCIR21st Apr 2009
2a00:1198::/324.3B × /64RIPE NCCIR29th Jul 2009
2a00:1570::/324.3B × /64RIPE NCCIR28th Oct 2009
2a00:15c8::/2934.4B × /64RIPE NCCIR3rd Nov 2009
2a00:1758::/324.3B × /64RIPE NCCIR27th Nov 2009
2a00:1a88::/324.3B × /64RIPE NCCIR4th Feb 2010
2a00:1fe0::/324.3B × /64RIPE NCCIR4th May 2010
2a00:4000::/2934.4B × /64RIPE NCCIR1st Dec 2010
2a00:4c60::/324.3B × /64RIPE NCCIR16th Apr 2015
2a00:52e0::/324.3B × /64RIPE NCCIR7th Mar 2013
2a00:6380::/324.3B × /64RIPE NCCIR29th Apr 2011
2a00:63a0::/324.3B × /64RIPE NCCIR28th Mar 2013
2a00:6d60::/324.3B × /64RIPE NCCIR9th Apr 2013
2a00:7040::/324.3B × /64RIPE NCCIR6th Jan 2012
2a00:76c0::/2934.4B × /64RIPE NCCIR16th Jan 2012
2a00:7d40::/2934.4B × /64RIPE NCCIR28th Apr 2025
2a00:8800::/2934.4B × /64RIPE NCCIR18th Jan 2024
2a00:94c0::/324.3B × /64RIPE NCCIR8th Feb 2012
2a00:9b20::/324.3B × /64RIPE NCCIR15th May 2015
2a00:abe0::/324.3B × /64RIPE NCCIR2nd Jul 2013
2a00:b140::/324.3B × /64RIPE NCCIR5th Mar 2012
2a00:c4a0::/324.3B × /64RIPE NCCIR5th Aug 2013
2a00:d20::/324.3B × /64RIPE NCCIR28th Oct 2008
2a00:d500::/324.3B × /64RIPE NCCIR21st Feb 2011
2a00:ff8::/2934.4B × /64RIPE NCCIR16th Dec 2008
2a01:458::/324.3B × /64RIPE NCCIR14th Aug 2007
2a01:4ac0::/324.3B × /64RIPE NCCIR29th May 2012
2a01:5500::/2934.4B × /64RIPE NCCIR28th Feb 2011
2a01:5840::/324.3B × /64RIPE NCCIR6th Jun 2012
2a01:7320::/324.3B × /64RIPE NCCIR30th Dec 2013
2a01:9180::/324.3B × /64RIPE NCCIR27th Jun 2011
2a01:9800::/324.3B × /64RIPE NCCIR13th Dec 2010