asn.dev

Address space

AS4657 STARHUB-INTERNET StarHub Ltd

Residential ARIN NSP

IPv4 prefixes 262 392K addresses
IPv6 prefixes 312
Most common size /24 IPv4
Flagged 185

Shape

IPv4 prefix sizes

All IPv4
/17
/17: 1
1
/18
/18: 3
3
/19
/19: 9
9
/20
/20: 15
15
/21
/21: 33
33
/22
/22: 48
48
/23
/23: 75
75
/24
/24: 78
78

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
/33
/33: 4
4
/34
/34: 4
4
/35
/35: 3
3
/36
/36: 5
5
/37
/37: 5
5
/38
/38: 5
5
/39
/39: 4
4
/40
/40: 6
6
/41
/41: 4
4
/42
/42: 5
5
/43
/43: 8
8
/44
/44: 5
5
/45
/45: 12
12
/46
/46: 11
11
/47
/47: 20
20
/48
/48: 26
26
/49
/49: 10
10
/50
/50: 10
10
/51
/51: 6
6
/52
/52: 7
7
/53
/53: 9
9
/54
/54: 9
9
/55
/55: 10
10
/56
/56: 9
9
/57
/57: 8
8
/58
/58: 7
7
/59
/59: 7
7
/60
/60: 7
7
/61
/61: 9
9
/62
/62: 22
22
/63
/63: 27
27
/64
/64: 28
28

Geography

Where the space lands

CountryNamePrefixes
SGSingapore574

Review

Flagged prefixes

185 of 574
PrefixFamilyAddressesCountryFlags
2404:e800:de00::/63IPv6/63SGToo specific
2406:3000:2::/56IPv6/56SGToo specific
2406:3000:2:100::/61IPv6/61SGToo specific
2406:3000:2:108::/63IPv6/63SGToo specific
2406:3000:2:10a::/63IPv6/63SGToo specific
2406:3000:2:10c::/62IPv6/62SGToo specific
2406:3000:2:110::/60IPv6/60SGToo specific
2406:3000:2:120::/59IPv6/59SGToo specific
2406:3000:2:140::/58IPv6/58SGToo specific
2406:3000:2:180::/57IPv6/57SGToo specific
2406:3000:2:200::/55IPv6/55SGToo specific
2406:3000:2:400::/54IPv6/54SGToo specific
2406:3000:2:800::/53IPv6/53SGToo specific
2406:3000:2:1000::/52IPv6/52SGToo specific
2406:3000:2:2000::/51IPv6/51SGToo specific
2406:3000:2:4000::/50IPv6/50SGToo specific
2406:3000:2:8000::/49IPv6/49SGToo specific
2406:3000:3::/61IPv6/61SGToo specific
2406:3000:3:8::/62IPv6/62SGToo specific
2406:3000:3:c::/62IPv6/62SGToo specific
2406:3000:3:10::/62IPv6/62SGToo specific
2406:3000:3:14::/63IPv6/63SGToo specific
2406:3000:3:16::/63IPv6/63SGToo specific
2406:3000:3:18::/63IPv6/63SGToo specific
2406:3000:3:1a::/63IPv6/63SGToo specific

The first 25. Every flag also shows in the IPv4 and IPv6 lists.

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