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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

Unannounced blocks in Singapore

495 blocks match, ordered by prefix.

Allocated but unannounced blocks, 451 to 495 of 495
PrefixAddressesRegistryCountryAllocated
2406:91c0::/324.3B × /64APNICSG6th Oct 2020
2406:9ec0::/324.3B × /64APNICSG19th Oct 2020
2406:c300::/324.3B × /64APNICSG17th Apr 2013
2406:cc00::/324.3B × /64APNICSG23rd Feb 2010
2406:f000::/324.3B × /64APNICSG21st Apr 2008
2407:1a80::/324.3B × /64APNICSG2nd Sept 2016
2407:5340::/324.3B × /64APNICSG19th Apr 2021
2407:5fc0::/324.3B × /64APNICSG11th May 2021
2407:6300::/324.3B × /64APNICSG2nd Jul 2013
2407:7c00::/324.3B × /64APNICSG2nd Mar 2010
2407:80::/324.3B × /64APNICSG1st Sept 2016
2407:8500::/324.3B × /64APNICSG16th Jul 2013
2407:8ec0::/324.3B × /64APNICSG16th Jun 2021
2407:9380::/324.3B × /64APNICSG19th Oct 2016
2407:9a80::/324.3B × /64APNICSG21st Oct 2016
2407:9c40::/324.3B × /64APNICSG29th Jun 2021
2407:a380::/324.3B × /64APNICSG28th Oct 2016
2407:c5c0::/2934.4B × /64APNICSG13th Aug 2021
2407:d040::/324.3B × /64APNICSG26th Aug 2021
2407:e000::/324.3B × /64APNICSG2nd Nov 2007
2407:eb00::/324.3B × /64APNICSG12th Sept 2013
2410::/17141T × /64APNICSG8th Nov 2024
27.0.96.0/198.2kAPNICSG2nd Mar 2011
27.109.104.0/221kAPNICSG18th Jun 2010
27.114.192.0/1816.4kAPNICSG12th Jul 2010
27.116.32.0/221kAPNICSG16th Jul 2010
36.255.124.0/221kAPNICSG18th Feb 2016
36.3.160.0/198.2kAPNICSG1st Feb 2011
43.225.152.0/221kAPNICSG5th Dec 2014
43.225.4.0/221kAPNICSG29th Nov 2014
43.227.240.0/221kAPNICSG24th Dec 2014
43.245.252.0/221kAPNICSG4th Jun 2014
43.249.12.0/221kAPNICSG2nd Oct 2014
43.249.212.0/221kAPNICSG15th Oct 2014
43.255.124.0/221kAPNICSG5th Aug 2014
45.112.80.0/23512APNICSG26th Feb 2015
45.113.128.0/221kAPNICSG20th Mar 2015
45.126.164.0/221kAPNICSG4th Sept 2015
49.213.56.0/23512APNICSG18th Aug 2025
52.128.128.0/198.2kAPNICSG23rd Jun 2016
59.153.76.0/221kAPNICSG15th Oct 2015
61.16.28.0/221kAPNICSG8th Nov 2000
64.70.224.0/198.2kAPNICSG3rd Apr 2000
91.110.0.0/1732.8kAPNICSG8th Aug 2006
91.85.0.0/198.2kAPNICSG31st Jul 2006