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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

25,318 blocks match, ordered by prefix.

Allocated but unannounced blocks, 11251 to 11300 of 25318
PrefixAddressesRegistryCountryAllocated
217.70.15.0/24256RIPE NCCIT24th Sept 2025
217.70.2.0/24256RIPE NCCCZ30th Jul 2025
217.70.5.0/24256RIPE NCCRU30th Jul 2025
217.70.8.0/24256RIPE NCCUA6th Aug 2025
217.70.9.0/24256RIPE NCCDE7th Aug 2025
217.71.160.0/204.1kRIPE NCCRU29th Jan 2007
217.72.12.0/221kRIPE NCCCY23rd Nov 2000
217.73.240.0/204.1kRIPE NCCPL7th Jul 2009
217.75.136.0/23512RIPE NCCBG28th Dec 2000
217.75.138.0/24256RIPE NCCBG28th Dec 2000
217.75.139.0/24256RIPE NCCBG28th Dec 2000
217.75.142.0/24256RIPE NCCBG28th Dec 2000
217.75.143.0/24256RIPE NCCBG28th Dec 2000
217.75.32.0/204.1kRIPE NCCNL22nd Dec 2000
217.78.240.0/204.1kRIPE NCCCW4th Nov 2003
217.8.240.0/204.1kRIPE NCCDE21st Oct 2002
217.8.64.0/204.1kRIPE NCCSA7th Aug 2000
217.9.176.0/204.1kRIPE NCCPL6th Feb 2001
23.239.128.0/198.2kRIPE NCCES4th Nov 2013
23.252.66.0/23512RIPE NCCGE11th Nov 2013
23.252.76.0/24256RIPE NCCGE11th Nov 2013
2a00:1000::/324.3B × /64RIPE NCCDE17th Jun 2009
2a00:1040::/324.3B × /64RIPE NCCDK29th Sept 2009
2a00:1048::/324.3B × /64RIPE NCCNL24th Jun 2009
2a00:1060::/324.3B × /64RIPE NCCMT26th Jun 2009
2a00:1070::/324.3B × /64RIPE NCCGB29th Jun 2009
2a00:1078::/324.3B × /64RIPE NCCRU30th Jun 2009
2a00:1088::/324.3B × /64RIPE NCCIT2nd Jul 2009
2a00:10c8::/324.3B × /64RIPE NCCIT9th Jul 2009
2a00:10da::/318.6B × /64RIPE NCCSK10th Jul 2009
2a00:10dc::/3017.2B × /64RIPE NCCSK10th Jul 2009
2a00:10f0::/324.3B × /64RIPE NCCGB13th Jul 2009
2a00:10f8::/324.3B × /64RIPE NCCLU13th Jul 2009
2a00:1120::/324.3B × /64RIPE NCCRU21st Jul 2009
2a00:1170::/324.3B × /64RIPE NCCIE27th Jul 2009
2a00:1198::/324.3B × /64RIPE NCCIR29th Jul 2009
2a00:11a8::/2934.4B × /64RIPE NCCOM30th Jul 2009
2a00:11c8::/324.3B × /64RIPE NCCGB5th Aug 2009
2a00:11d0::/324.3B × /64RIPE NCCAT5th Aug 2009
2a00:11d8::/324.3B × /64RIPE NCCAG6th Aug 2009
2a00:1208::/324.3B × /64RIPE NCCSE10th Aug 2009
2a00:1258::/324.3B × /64RIPE NCCBE17th Aug 2009
2a00:12b0::/2934.4B × /64RIPE NCCFR26th Aug 2009
2a00:1340::/324.3B × /64RIPE NCCDE10th Sept 2009
2a00:1350::/324.3B × /64RIPE NCCGB15th Sept 2009
2a00:1388::/324.3B × /64RIPE NCCNL18th Sept 2009
2a00:1498::/324.3B × /64RIPE NCCAT9th Oct 2009
2a00:14a0::/2934.4B × /64RIPE NCCGB9th Oct 2009
2a00:14c8::/324.3B × /64RIPE NCCGB14th Oct 2009
2a00:1500::/2934.4B × /64RIPE NCCAM19th Oct 2009