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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

529 blocks match, ordered by prefix.

Allocated but unannounced blocks, 151 to 200 of 529
PrefixAddressesRegistryCountryAllocated
192.159.28.0/24256APNICSG20th Apr 1992
192.159.29.0/24256APNICSG20th Apr 1992
192.159.30.0/24256APNICSG20th Apr 1992
192.169.35.0/24256APNICSG12th May 1992
192.169.36.0/24256APNICSG12th May 1992
192.169.39.0/24256APNICSG12th May 1992
192.169.40.0/24256APNICSG12th May 1992
192.245.58.0/23512APNICSG30th Oct 1992
198.17.70.0/24256APNICSG17th Dec 1992
198.74.26.0/23512APNICSG22nd Feb 1993
199.103.68.0/24256ARINSG25th Jun 1994
199.65.192.0/212kAPNICSG23rd Nov 1993
2001:208:2000::/35537M × /64APNICSG6th Mar 2003
2001:208:4000::/341.1B × /64APNICSG6th Mar 2003
2001:208:8000::/332.1B × /64APNICSG6th Mar 2003
2001:208::/35537M × /64APNICSG27th Aug 1999
2001:9400::/4016.8M × /64APNICSG17th Nov 2022
2001:dd8:16::/4865.5k × /64APNICSG20th Dec 2010
2001:dd8:4::/4865.5k × /64APNICSG23rd Feb 2010
2001:de8:12::/4865.5k × /64APNICSG14th May 2010
2001:de8:d::/4865.5k × /64APNICSG26th Oct 2009
2001:ded::/4865.5k × /64APNICSG13th Oct 2014
2001:dee:4000::/4865.5k × /64APNICSG6th Mar 2024
2001:df0:14::/4865.5k × /64APNICSG20th Jun 2008
2001:df0:1c40::/4865.5k × /64APNICSG25th Nov 2021
2001:df0:259::/4865.5k × /64APNICSG1st Nov 2011
2001:df0:27c::/4865.5k × /64APNICSG17th Jan 2012
2001:df0:2ac::/4865.5k × /64APNICSG19th Apr 2012
2001:df0:2e9::/4865.5k × /64APNICSG2nd Aug 2012
2001:df0:300::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:302::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:303::/4865.5k × /64APNICSG18th Apr 2012
2001:df0:304::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:305::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:306::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:307::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:308::/4865.5k × /64APNICSG13th Mar 2012
2001:df0:309::/4865.5k × /64APNICSG5th Jun 2012
2001:df0:30a::/4865.5k × /64APNICSG15th Jun 2012
2001:df0:30b::/4865.5k × /64APNICSG25th Jun 2012
2001:df0:30c::/4865.5k × /64APNICSG25th Jun 2012
2001:df0:30d::/4865.5k × /64APNICSG12th Jul 2012
2001:df0:30e::/4865.5k × /64APNICSG13th Jul 2012
2001:df0:310::/4865.5k × /64APNICSG19th Oct 2012
2001:df0:311::/4865.5k × /64APNICSG12th Nov 2012
2001:df0:318::/47131k × /64APNICSG25th May 2017
2001:df0:3280::/4865.5k × /64APNICSG16th Apr 2019
2001:df0:33c0::/4865.5k × /64APNICSG16th Dec 2021
2001:df0:3600::/4865.5k × /64APNICSG6th Jan 2016
2001:df0:420::/4865.5k × /64APNICSG7th Nov 2012