asn.dev

Address space

AS7489 HOSTUS-GLOBAL-AS HostUS

Hosting APNIC Content

IPv4 prefixes 52 20.22K addresses
IPv6 prefixes 22
Most common size /24 IPv4
Flagged 8

Shape

IPv4 prefix sizes

All IPv4
/21
/21: 1
1
/22
/22: 4
4
/23
/23: 15
15
/24
/24: 24
24
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 1
1
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 1
1

A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

IPv6 prefix sizes

All IPv6
/43
/43: 1
1
/44
/44: 5
5
/47
/47: 2
2
/48
/48: 14
14

Geography

Where the space lands

CountryNamePrefixes
HKHong Kong74

Review

Flagged prefixes

8 of 74
PrefixFamilyAddressesCountryFlags
45.58.52.0/25IPv4128HKToo specific
45.58.52.128/26IPv464HKToo specific
45.58.52.192/28IPv416HKToo specific
45.58.52.208/31IPv42HKToo specific
45.58.52.210/32IPv41HKToo specific
45.58.52.212/30IPv44HKToo specific
45.58.52.216/29IPv48HKToo specific
45.58.52.224/27IPv432HKToo specific

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.