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It is also a snapshot, not a history: a block announced yesterday and withdrawn this morning appears here today.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

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Countries with unannounced space registered through APNIC, largest first.

Unannounced blocks in Singapore

514 blocks match, ordered by prefix.

Allocated but unannounced blocks, 501 to 514 of 514
PrefixAddressesRegistryCountryAllocated
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
61.47.20.0/24256APNICSG1st Mar 2005
61.47.25.0/24256APNICSG1st Mar 2005
61.47.52.0/24256APNICSG1st Mar 2005
61.47.67.0/24256APNICSG1st Mar 2005
64.70.224.0/198.2kAPNICSG3rd Apr 2000
91.85.0.0/198.2kAPNICSG31st Jul 2006