asn.dev

Address space

AS2153 CENIC-2153

IPv4 prefixes 10 3.14K addresses
IPv6 prefixes 45
Most common size /24 IPv4
Flagged 44

Shape

Prefix sizes

IPv4
/23
/23: 3
3
/24
/24: 6
6
/26
/26: 1
1

How this network carves its IPv4 space. 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

Prefix sizes

IPv6
/40
/40: 1
1
/48
/48: 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
/112
/112: 2
2
/113
/113: 2
2
/114
/114: 2
2
/115
/115: 2
2
/116
/116: 2
2
/117
/117: 2
2
/118
/118: 2
2
/119
/119: 2
2
/120
/120: 2
2
/121
/121: 2
2
/122
/122: 2
2
/123
/123: 2
2

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America55

Review

Flagged prefixes

44 of 55
PrefixFamilyAddressesCountryFlags
198.188.2.0/26IPv464USToo specific
2607:f380::100:0:0/92IPv6—USToo specific
2607:f380:1::100:0:0/93IPv6—USToo specific
2607:f380:1::108:0:0/97IPv6—USToo specific
2607:f380:1::108:8000:0/100IPv6—USToo specific
2607:f380:1::108:9000:0/101IPv6—USToo specific
2607:f380:1::108:9800:0/103IPv6—USToo specific
2607:f380:1::108:9a00:0/106IPv6—USToo specific
2607:f380:1::108:9a40:0/112IPv6—USToo specific
2607:f380:1::108:9a41:0/113IPv6—USToo specific
2607:f380:1::108:9a41:8000/117IPv6—USToo specific
2607:f380:1::108:9a41:8800/119IPv6—USToo specific
2607:f380:1::108:9a41:8a00/120IPv6—USToo specific
2607:f380:1::108:9a41:8b00/121IPv6—USToo specific
2607:f380:1::108:9a41:8b80/122IPv6—USToo specific
2607:f380:1::108:9a41:8be0/123IPv6—USToo specific
2607:f380:1::108:9a41:8c00/118IPv6—USToo specific
2607:f380:1::108:9a41:9000/116IPv6—USToo specific
2607:f380:1::108:9a41:a000/115IPv6—USToo specific
2607:f380:1::108:9a41:c000/114IPv6—USToo specific
2607:f380:1::108:9a42:0/114IPv6—USToo specific
2607:f380:1::108:9a42:4000/115IPv6—USToo specific
2607:f380:1::108:9a42:6000/117IPv6—USToo specific
2607:f380:1::108:9a42:6800/118IPv6—USToo specific
2607:f380:1::108:9a42:6c00/119IPv6—USToo specific
2607:f380:1::108:9a42:6e00/120IPv6—USToo specific
2607:f380:1::108:9a42:6f00/121IPv6—USToo specific
2607:f380:1::108:9a42:6f80/122IPv6—USToo specific
2607:f380:1::108:9a42:6fc0/123IPv6—USToo specific
2607:f380:1::108:9a42:7000/116IPv6—USToo specific
2607:f380:1::108:9a42:8000/113IPv6—USToo specific
2607:f380:1::108:9a43:0/112IPv6—USToo specific
2607:f380:1::108:9a44:0/110IPv6—USToo specific
2607:f380:1::108:9a48:0/109IPv6—USToo specific
2607:f380:1::108:9a50:0/108IPv6—USToo specific
2607:f380:1::108:9a60:0/107IPv6—USToo specific
2607:f380:1::108:9a80:0/105IPv6—USToo specific
2607:f380:1::108:9b00:0/104IPv6—USToo specific
2607:f380:1::108:9c00:0/102IPv6—USToo specific
2607:f380:1::108:a000:0/99IPv6—USToo specific
2607:f380:1::108:c000:0/98IPv6—USToo specific
2607:f380:1::109:0:0/96IPv6—USToo specific
2607:f380:1::10a:0:0/95IPv6—USToo specific
2607:f380:1::10c:0:0/94IPv6—USToo specific

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

Inventory

All prefixes

55 total
PrefixFamilyAddressesCountryFlags
130.150.12.0/23IPv4512US
136.168.238.0/24IPv4256US
137.150.137.0/24IPv4256US
137.164.17.0/24IPv4256US
137.164.25.0/24IPv4256US
137.164.26.0/23IPv4512US
137.164.28.0/24IPv4256US
198.188.2.0/26IPv464USToo specific
205.154.51.0/24IPv4256US
209.129.60.0/23IPv4512US
2001:468:e00::/40IPv6—US
2607:f380::100:0:0/92IPv6—USToo specific
2607:f380:1::100:0:0/93IPv6—USToo specific
2607:f380:1::108:0:0/97IPv6—USToo specific
2607:f380:1::108:8000:0/100IPv6—USToo specific
2607:f380:1::108:9000:0/101IPv6—USToo specific
2607:f380:1::108:9800:0/103IPv6—USToo specific
2607:f380:1::108:9a00:0/106IPv6—USToo specific
2607:f380:1::108:9a40:0/112IPv6—USToo specific
2607:f380:1::108:9a41:0/113IPv6—USToo specific
2607:f380:1::108:9a41:8000/117IPv6—USToo specific
2607:f380:1::108:9a41:8800/119IPv6—USToo specific
2607:f380:1::108:9a41:8a00/120IPv6—USToo specific
2607:f380:1::108:9a41:8b00/121IPv6—USToo specific
2607:f380:1::108:9a41:8b80/122IPv6—USToo specific
2607:f380:1::108:9a41:8be0/123IPv6—USToo specific
2607:f380:1::108:9a41:8c00/118IPv6—USToo specific
2607:f380:1::108:9a41:9000/116IPv6—USToo specific
2607:f380:1::108:9a41:a000/115IPv6—USToo specific
2607:f380:1::108:9a41:c000/114IPv6—USToo specific
2607:f380:1::108:9a42:0/114IPv6—USToo specific
2607:f380:1::108:9a42:4000/115IPv6—USToo specific
2607:f380:1::108:9a42:6000/117IPv6—USToo specific
2607:f380:1::108:9a42:6800/118IPv6—USToo specific
2607:f380:1::108:9a42:6c00/119IPv6—USToo specific
2607:f380:1::108:9a42:6e00/120IPv6—USToo specific
2607:f380:1::108:9a42:6f00/121IPv6—USToo specific
2607:f380:1::108:9a42:6f80/122IPv6—USToo specific
2607:f380:1::108:9a42:6fc0/123IPv6—USToo specific
2607:f380:1::108:9a42:7000/116IPv6—USToo specific
2607:f380:1::108:9a42:8000/113IPv6—USToo specific
2607:f380:1::108:9a43:0/112IPv6—USToo specific
2607:f380:1::108:9a44:0/110IPv6—USToo specific
2607:f380:1::108:9a48:0/109IPv6—USToo specific
2607:f380:1::108:9a50:0/108IPv6—USToo specific
2607:f380:1::108:9a60:0/107IPv6—USToo specific
2607:f380:1::108:9a80:0/105IPv6—USToo specific
2607:f380:1::108:9b00:0/104IPv6—USToo specific
2607:f380:1::108:9c00:0/102IPv6—USToo specific
2607:f380:1::108:a000:0/99IPv6—USToo specific
2607:f380:1::108:c000:0/98IPv6—USToo specific
2607:f380:1::109:0:0/96IPv6—USToo specific
2607:f380:1::10a:0:0/95IPv6—USToo specific
2607:f380:1::10c:0:0/94IPv6—USToo specific
2607:f380:4::/48IPv6—US