asn.dev

Address space

AS7575 AARNET-AS-AP Australian Academic and Research Network AARNet

Education APNIC

IPv4 prefixes 181 1.14M addresses
IPv6 prefixes 108
Most common size /24 IPv4
Flagged 86

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 11
11
/17
/17: 1
1
/18
/18: 10
10
/19
/19: 12
12
/20
/20: 12
12
/21
/21: 10
10
/22
/22: 15
15
/23
/23: 32
32
/24
/24: 71
71
/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

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
/32
/32: 5
5
/33
/33: 1
1
/34
/34: 1
1
/35
/35: 1
1
/36
/36: 1
1
/37
/37: 1
1
/38
/38: 1
1
/39
/39: 1
1
/40
/40: 1
1
/42
/42: 2
2
/43
/43: 2
2
/44
/44: 2
2
/45
/45: 2
2
/46
/46: 2
2
/47
/47: 3
3
/48
/48: 3
3
/49
/49: 1
1
/50
/50: 1
1
/51
/51: 1
1
/52
/52: 1
1
/53
/53: 1
1
/54
/54: 1
1
/55
/55: 1
1
/56
/56: 1
1
/57
/57: 1
1
/58
/58: 1
1
/59
/59: 1
1
/60
/60: 1
1
/61
/61: 1
1
/62
/62: 1
1
/63
/63: 1
1
/64
/64: 1
1
/65
/65: 1
1
/66
/66: 1
1
/67
/67: 1
1
/68
/68: 1
1
/69
/69: 1
1
/70
/70: 1
1
/71
/71: 1
1
/72
/72: 1
1
/73
/73: 1
1
/74
/74: 1
1
/75
/75: 1
1
/76
/76: 1
1
/77
/77: 1
1
/78
/78: 1
1
/79
/79: 1
1
/80
/80: 1
1
/81
/81: 1
1
/82
/82: 1
1
/83
/83: 1
1
/84
/84: 1
1
/85
/85: 1
1
/86
/86: 1
1
/87
/87: 1
1
/88
/88: 1
1
/89
/89: 1
1
/90
/90: 1
1
/91
/91: 1
1
/92
/92: 1
1
/93
/93: 1
1
/94
/94: 1
1
/95
/95: 1
1
/96
/96: 1
1
/97
/97: 1
1
/98
/98: 1
1
/99
/99: 1
1
/100
/100: 1
1
/101
/101: 1
1
/102
/102: 1
1
/103
/103: 1
1
/104
/104: 1
1
/105
/105: 1
1
/106
/106: 1
1
/107
/107: 1
1
/108
/108: 1
1
/109
/109: 1
1
/110
/110: 1
1
/111
/111: 1
1
/112
/112: 1
1
/113
/113: 1
1
/114
/114: 1
1
/115
/115: 1
1
/116
/116: 1
1
/117
/117: 1
1
/118
/118: 1
1
/119
/119: 1
1
/120
/120: 1
1
/121
/121: 1
1
/122
/122: 1
1
/123
/123: 1
1
/124
/124: 1
1
/125
/125: 1
1
/126
/126: 1
1
/127
/127: 1
1

Geography

Where the space lands

CountryNamePrefixes
AUAustralia289

Review

Flagged prefixes

86 of 289
PrefixFamilyAddressesCountryFlags
138.44.18.0/25IPv4128AUToo specific
138.44.18.128/26IPv464AUToo specific
138.44.18.192/29IPv48AUToo specific
138.44.18.200/30IPv44AUToo specific
138.44.18.204/31IPv42AUToo specific
138.44.18.208/28IPv416AUToo specific
138.44.18.224/27IPv432AUToo specific
2001:388:cf0e::2/127IPv6/127AUToo specific
2001:388:cf0e::4/126IPv6/126AUToo specific
2001:388:cf0e::8/125IPv6/125AUToo specific
2001:388:cf0e::10/124IPv6/124AUToo specific
2001:388:cf0e::20/123IPv6/123AUToo specific
2001:388:cf0e::40/122IPv6/122AUToo specific
2001:388:cf0e::80/121IPv6/121AUToo specific
2001:388:cf0e::100/120IPv6/120AUToo specific
2001:388:cf0e::200/119IPv6/119AUToo specific
2001:388:cf0e::400/118IPv6/118AUToo specific
2001:388:cf0e::800/117IPv6/117AUToo specific
2001:388:cf0e::1000/116IPv6/116AUToo specific
2001:388:cf0e::2000/115IPv6/115AUToo specific
2001:388:cf0e::4000/114IPv6/114AUToo specific
2001:388:cf0e::8000/113IPv6/113AUToo specific
2001:388:cf0e::1:0/112IPv6/112AUToo specific
2001:388:cf0e::2:0/111IPv6/111AUToo specific
2001:388:cf0e::4:0/110IPv6/110AUToo 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.