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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

950 blocks match, ordered by prefix.

Allocated but unannounced blocks, 601 to 650 of 950
PrefixAddressesRegistryCountryAllocated
202.20.111.0/24256APNICCH28th Sept 1993
202.20.98.0/24256APNICCH20th Sept 1993
203.14.166.0/24256APNICCH28th Apr 1995
204.48.32.0/23512RIPE NCCCH7th Nov 2019
204.79.161.0/24256ARINCH14th Dec 1994
204.79.162.0/23512ARINCH14th Dec 1994
204.79.229.0/24256ARINCH19th Dec 1994
208.64.54.0/23512RIPE NCCCH9th Dec 2005
212.47.53.0/24256RIPE NCCCH16th Mar 2026
213.244.194.0/23512RIPE NCCCH11th Jun 2003
216.181.158.0/23512RIPE NCCCH24th May 2000
217.179.56.0/221kRIPE NCCCH2nd Mar 2001
217.197.101.0/24256RIPE NCCCH15th May 2023
217.197.208.0/204.1kRIPE NCCCH27th Oct 2004
2a00:4740::/324.3B × /64RIPE NCCCH28th Nov 2011
2a00:4ec0::/324.3B × /64RIPE NCCCH5th Dec 2011
2a00:5360::/324.3B × /64RIPE NCCCH7th Mar 2013
2a00:6f20::/324.3B × /64RIPE NCCCH11th Apr 2013
2a00:77c0::/324.3B × /64RIPE NCCCH18th Jan 2012
2a00:9740::/324.3B × /64RIPE NCCCH13th Feb 2012
2a00:9840::/324.3B × /64RIPE NCCCH13th Feb 2012
2a00:bae0::/324.3B × /64RIPE NCCCH22nd Jul 2013
2a00:bf60::/324.3B × /64RIPE NCCCH26th Jul 2013
2a00:c620::/324.3B × /64RIPE NCCCH6th Aug 2013
2a00:c800::/324.3B × /64RIPE NCCCH9th Dec 2010
2a00:e020::/324.3B × /64RIPE NCCCH12th Sept 2013
2a00:e640::/2934.4B × /64RIPE NCCCH25th Apr 2012
2a00:e680::/324.3B × /64RIPE NCCCH30th May 2011
2a00:e7e0::/324.3B × /64RIPE NCCCH23rd Sept 2013
2a00:f90::/324.3B × /64RIPE NCCCH4th Dec 2008
2a00:ff00::/2934.4B × /64RIPE NCCCH24th Feb 2011
2a01:228::/324.3B × /64RIPE NCCCH27th Oct 2006
2a01:2d0::/324.3B × /64RIPE NCCCH14th Mar 2007
2a01:41c0::/324.3B × /64RIPE NCCCH23rd May 2012
2a01:4960::/324.3B × /64RIPE NCCCH4th Nov 2013
2a01:52a0::/324.3B × /64RIPE NCCCH19th Nov 2013
2a01:5660::/324.3B × /64RIPE NCCCH21st Nov 2013
2a01:5d8::/2934.4B × /64RIPE NCCCH16th Dec 2008
2a01:6360::/324.3B × /64RIPE NCCCH6th Dec 2013
2a01:80c0::/324.3B × /64RIPE NCCCH5th Jul 2012
2a01:84e0::/324.3B × /64RIPE NCCCH28th Jan 2014
2a01:8860::/324.3B × /64RIPE NCCCH3rd Feb 2014
2a01:9320::/324.3B × /64RIPE NCCCH14th Jul 2015
2a01:ada0::/324.3B × /64RIPE NCCCH19th Mar 2014
2a01:b400::/324.3B × /64RIPE NCCCH4th Jan 2011
2a01:b7c0::/2934.4B × /64RIPE NCCCH5th Sept 2012
2a01:b920::/324.3B × /64RIPE NCCCH27th Mar 2014
2a01:bd00::/324.3B × /64RIPE NCCCH15th Mar 2011
2a01:bd20::/324.3B × /64RIPE NCCCH3rd Apr 2014
2a01:edc0::/2934.4B × /64RIPE NCCCH14th Oct 2024