asn.dev

Address space

AS11537 INTERNET2-RESEARCH-EDU

IPv4 prefixes 29 7.48K addresses
IPv6 prefixes 235
Most common size /24 IPv4
Flagged 93

Shape

Prefix sizes

IPv4
/22
/22: 4
4
/23
/23: 2
2
/24
/24: 8
8
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 4
4
/29
/29: 2
2
/31
/31: 2
2
/32
/32: 4
4

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
/34
/34: 2
2
/35
/35: 1
1
/36
/36: 1
1
/37
/37: 2
2
/38
/38: 5
5
/39
/39: 7
7
/40
/40: 12
12
/41
/41: 9
9
/42
/42: 11
11
/43
/43: 13
13
/44
/44: 13
13
/45
/45: 20
20
/46
/46: 21
21
/47
/47: 20
20
/48
/48: 20
20
/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

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America264

Review

Flagged prefixes

93 of 264
PrefixFamilyAddressesCountryFlags
64.57.22.144/28IPv416USToo specific
64.57.22.176/28IPv416USToo specific
64.57.22.208/28IPv416USToo specific
64.57.22.232/29IPv48USToo specific
162.252.70.0/25IPv4128USToo specific
162.252.70.128/26IPv464USToo specific
162.252.70.192/31IPv42USToo specific
162.252.70.194/32IPv41USToo specific
162.252.70.195/32IPv41USToo specific
162.252.70.196/32IPv41USToo specific
162.252.70.197/32IPv41USToo specific
162.252.70.198/31IPv42USToo specific
162.252.70.200/29IPv48USToo specific
162.252.70.208/28IPv416USToo specific
162.252.70.224/27IPv432USToo specific
2001:468:f001::/62IPv6—USToo specific
2001:468:f001:4::4/126IPv6—USToo specific
2001:468:f001:4::8/125IPv6—USToo specific
2001:468:f001:4::10/124IPv6—USToo specific
2001:468:f001:4::20/123IPv6—USToo specific
2001:468:f001:4::40/122IPv6—USToo specific
2001:468:f001:4::80/121IPv6—USToo specific
2001:468:f001:4::100/120IPv6—USToo specific
2001:468:f001:4::200/119IPv6—USToo specific
2001:468:f001:4::400/118IPv6—USToo specific
2001:468:f001:4::800/117IPv6—USToo specific
2001:468:f001:4::1000/116IPv6—USToo specific
2001:468:f001:4::2000/115IPv6—USToo specific
2001:468:f001:4::4000/114IPv6—USToo specific
2001:468:f001:4::8000/113IPv6—USToo specific
2001:468:f001:4::1:0/112IPv6—USToo specific
2001:468:f001:4::2:0/111IPv6—USToo specific
2001:468:f001:4::4:0/110IPv6—USToo specific
2001:468:f001:4::8:0/109IPv6—USToo specific
2001:468:f001:4::10:0/108IPv6—USToo specific
2001:468:f001:4::20:0/107IPv6—USToo specific
2001:468:f001:4::40:0/106IPv6—USToo specific
2001:468:f001:4::80:0/105IPv6—USToo specific
2001:468:f001:4::100:0/104IPv6—USToo specific
2001:468:f001:4::200:0/103IPv6—USToo specific
2001:468:f001:4::400:0/102IPv6—USToo specific
2001:468:f001:4::800:0/101IPv6—USToo specific
2001:468:f001:4::1000:0/100IPv6—USToo specific
2001:468:f001:4::2000:0/99IPv6—USToo specific
2001:468:f001:4::4000:0/98IPv6—USToo specific
2001:468:f001:4::8000:0/97IPv6—USToo specific
2001:468:f001:4:0:1::/96IPv6—USToo specific
2001:468:f001:4:0:2::/95IPv6—USToo specific
2001:468:f001:4:0:4::/94IPv6—USToo specific
2001:468:f001:4:0:8::/93IPv6—USToo specific
2001:468:f001:4:0:10::/92IPv6—USToo specific
2001:468:f001:4:0:20::/91IPv6—USToo specific
2001:468:f001:4:0:40::/90IPv6—USToo specific
2001:468:f001:4:0:80::/89IPv6—USToo specific
2001:468:f001:4:0:100::/88IPv6—USToo specific
2001:468:f001:4:0:200::/87IPv6—USToo specific
2001:468:f001:4:0:400::/86IPv6—USToo specific
2001:468:f001:4:0:800::/85IPv6—USToo specific
2001:468:f001:4:0:1000::/84IPv6—USToo specific
2001:468:f001:4:0:2000::/83IPv6—USToo specific
2001:468:f001:4:0:4000::/82IPv6—USToo specific
2001:468:f001:4:0:8000::/81IPv6—USToo specific
2001:468:f001:4:1::/80IPv6—USToo specific
2001:468:f001:4:2::/79IPv6—USToo specific
2001:468:f001:4:4::/78IPv6—USToo specific
2001:468:f001:4:8::/77IPv6—USToo specific
2001:468:f001:4:10::/76IPv6—USToo specific
2001:468:f001:4:20::/75IPv6—USToo specific
2001:468:f001:4:40::/74IPv6—USToo specific
2001:468:f001:4:80::/73IPv6—USToo specific
2001:468:f001:4:100::/72IPv6—USToo specific
2001:468:f001:4:200::/71IPv6—USToo specific
2001:468:f001:4:400::/70IPv6—USToo specific
2001:468:f001:4:800::/69IPv6—USToo specific
2001:468:f001:4:1000::/68IPv6—USToo specific
2001:468:f001:4:2000::/67IPv6—USToo specific
2001:468:f001:4:4000::/66IPv6—USToo specific
2001:468:f001:4:8000::/65IPv6—USToo specific
2001:468:f001:5::/64IPv6—USToo specific
2001:468:f001:6::/63IPv6—USToo specific
2001:468:f001:8::/61IPv6—USToo specific
2001:468:f001:10::/60IPv6—USToo specific
2001:468:f001:20::/59IPv6—USToo specific
2001:468:f001:40::/58IPv6—USToo specific
2001:468:f001:80::/57IPv6—USToo specific
2001:468:f001:100::/56IPv6—USToo specific
2001:468:f001:200::/55IPv6—USToo specific
2001:468:f001:400::/54IPv6—USToo specific
2001:468:f001:800::/53IPv6—USToo specific
2001:468:f001:1000::/52IPv6—USToo specific
2001:468:f001:2000::/51IPv6—USToo specific
2001:468:f001:4000::/50IPv6—USToo specific
2001:468:f001:8000::/49IPv6—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

264 total
PrefixFamilyAddressesCountryFlags
64.57.16.0/22IPv41,024US
64.57.22.144/28IPv416USToo specific
64.57.22.176/28IPv416USToo specific
64.57.22.208/28IPv416USToo specific
64.57.22.232/29IPv48USToo specific
64.57.23.0/24IPv4256US
64.57.24.0/22IPv41,024US
64.57.28.0/24IPv4256US
64.57.30.0/23IPv4512US
162.252.70.0/25IPv4128USToo specific
162.252.70.128/26IPv464USToo specific
162.252.70.192/31IPv42USToo specific
162.252.70.194/32IPv41USToo specific
162.252.70.195/32IPv41USToo specific
162.252.70.196/32IPv41USToo specific
162.252.70.197/32IPv41USToo specific
162.252.70.198/31IPv42USToo specific
162.252.70.200/29IPv48USToo specific
162.252.70.208/28IPv416USToo specific
162.252.70.224/27IPv432USToo specific
163.253.0.0/22IPv41,024US
163.253.9.0/24IPv4256US
163.253.12.0/22IPv41,024US
163.253.28.0/24IPv4256US
163.253.56.0/23IPv4512US
163.253.63.0/24IPv4256US
163.253.66.0/24IPv4256US
198.71.45.0/24IPv4256US
198.71.46.0/24IPv4256US
2001:468::/44IPv6—US
2001:468:10::/46IPv6—US
2001:468:14::/47IPv6—US
2001:468:16::/48IPv6—US
2001:468:18::/45IPv6—US
2001:468:20::/43IPv6—US
2001:468:40::/42IPv6—US
2001:468:80::/41IPv6—US
2001:468:100::/40IPv6—US
2001:468:200::/40IPv6—US
2001:468:301::/48IPv6—US
2001:468:302::/47IPv6—US
2001:468:304::/46IPv6—US
2001:468:308::/45IPv6—US
2001:468:310::/44IPv6—US
2001:468:320::/43IPv6—US
2001:468:340::/42IPv6—US
2001:468:380::/41IPv6—US
2001:468:400::/40IPv6—US
2001:468:702::/47IPv6—US
2001:468:704::/46IPv6—US
2001:468:708::/45IPv6—US
2001:468:710::/44IPv6—US
2001:468:720::/43IPv6—US
2001:468:740::/42IPv6—US
2001:468:780::/41IPv6—US
2001:468:800::/38IPv6—US
2001:468:d00::/48IPv6—US
2001:468:d02::/47IPv6—US
2001:468:d04::/46IPv6—US
2001:468:d08::/45IPv6—US
2001:468:d10::/44IPv6—US
2001:468:d20::/43IPv6—US
2001:468:d40::/42IPv6—US
2001:468:d80::/41IPv6—US
2001:468:1000::/39IPv6—US
2001:468:1200::/47IPv6—US
2001:468:1203::/48IPv6—US
2001:468:1204::/46IPv6—US
2001:468:1208::/45IPv6—US
2001:468:1210::/44IPv6—US
2001:468:1220::/43IPv6—US
2001:468:1240::/42IPv6—US
2001:468:1280::/41IPv6—US
2001:468:1300::/40IPv6—US
2001:468:1400::/38IPv6—US
2001:468:1900::/40IPv6—US
2001:468:1b00::/40IPv6—US
2001:468:1c00::/39IPv6—US
2001:468:1e00::/40IPv6—US
2001:468:1f00::/45IPv6—US
2001:468:1f08::/46IPv6—US
2001:468:1f0d::/48IPv6—US
2001:468:1f0e::/48IPv6—US
2001:468:1f0f::/48IPv6—US
2001:468:1f12::/47IPv6—US
2001:468:1f14::/47IPv6—US
2001:468:1f18::/45IPv6—US
2001:468:1f23::/48IPv6—US
2001:468:1f24::/46IPv6—US
2001:468:1f28::/45IPv6—US
2001:468:1f30::/44IPv6—US
2001:468:1f40::/43IPv6—US
2001:468:1f60::/46IPv6—US
2001:468:1f64::/47IPv6—US
2001:468:1f67::/48IPv6—US
2001:468:1f68::/45IPv6—US
2001:468:1f70::/44IPv6—US
2001:468:1f80::/41IPv6—US
2001:468:2000::/38IPv6—US
2001:468:2400::/39IPv6—US
2001:468:2601::/48IPv6—US
2001:468:2602::/47IPv6—US
2001:468:2604::/46IPv6—US
2001:468:2608::/45IPv6—US
2001:468:2611::/48IPv6—US
2001:468:2612::/47IPv6—US
2001:468:2614::/46IPv6—US
2001:468:2618::/45IPv6—US
2001:468:2621::/48IPv6—US
2001:468:2622::/47IPv6—US
2001:468:2624::/46IPv6—US
2001:468:2628::/45IPv6—US
2001:468:2631::/48IPv6—US
2001:468:2632::/47IPv6—US
2001:468:2634::/46IPv6—US
2001:468:2638::/45IPv6—US
2001:468:2641::/48IPv6—US
2001:468:2642::/47IPv6—US
2001:468:2644::/46IPv6—US
2001:468:2648::/45IPv6—US
2001:468:2650::/44IPv6—US
2001:468:2660::/43IPv6—US
2001:468:2680::/42IPv6—US
2001:468:26c0::/43IPv6—US
2001:468:26e0::/48IPv6—US
2001:468:26e2::/47IPv6—US
2001:468:26e4::/46IPv6—US
2001:468:26e8::/45IPv6—US
2001:468:26f0::/44IPv6—US
2001:468:2700::/40IPv6—US
2001:468:2800::/46IPv6—US
2001:468:2804::/47IPv6—US
2001:468:280a::/47IPv6—US
2001:468:280c::/46IPv6—US
2001:468:2811::/48IPv6—US
2001:468:2812::/47IPv6—US
2001:468:2814::/46IPv6—US
2001:468:2818::/45IPv6—US
2001:468:2820::/43IPv6—US
2001:468:2840::/42IPv6—US
2001:468:2880::/41IPv6—US
2001:468:2900::/40IPv6—US
2001:468:2a00::/39IPv6—US
2001:468:2c00::/39IPv6—US
2001:468:2e00::/40IPv6—US
2001:468:2f00::/48IPv6—US
2001:468:2f02::/48IPv6—US
2001:468:2f04::/46IPv6—US
2001:468:2f08::/45IPv6—US
2001:468:2f10::/44IPv6—US
2001:468:2f20::/43IPv6—US
2001:468:2f40::/42IPv6—US
2001:468:2f80::/41IPv6—US
2001:468:3000::/36IPv6—US
2001:468:4000::/34IPv6—US
2001:468:8000::/34IPv6—US
2001:468:c000::/35IPv6—US
2001:468:e000::/37IPv6—US
2001:468:e800::/38IPv6—US
2001:468:ec00::/39IPv6—US
2001:468:ee00::/40IPv6—US
2001:468:ef00::/48IPv6—US
2001:468:ef02::/47IPv6—US
2001:468:ef04::/46IPv6—US
2001:468:ef08::/45IPv6—US
2001:468:ef10::/44IPv6—US
2001:468:ef20::/43IPv6—US
2001:468:ef40::/42IPv6—US
2001:468:ef80::/41IPv6—US
2001:468:f001::/62IPv6—USToo specific
2001:468:f001:4::4/126IPv6—USToo specific
2001:468:f001:4::8/125IPv6—USToo specific
2001:468:f001:4::10/124IPv6—USToo specific
2001:468:f001:4::20/123IPv6—USToo specific
2001:468:f001:4::40/122IPv6—USToo specific
2001:468:f001:4::80/121IPv6—USToo specific
2001:468:f001:4::100/120IPv6—USToo specific
2001:468:f001:4::200/119IPv6—USToo specific
2001:468:f001:4::400/118IPv6—USToo specific
2001:468:f001:4::800/117IPv6—USToo specific
2001:468:f001:4::1000/116IPv6—USToo specific
2001:468:f001:4::2000/115IPv6—USToo specific
2001:468:f001:4::4000/114IPv6—USToo specific
2001:468:f001:4::8000/113IPv6—USToo specific
2001:468:f001:4::1:0/112IPv6—USToo specific
2001:468:f001:4::2:0/111IPv6—USToo specific
2001:468:f001:4::4:0/110IPv6—USToo specific
2001:468:f001:4::8:0/109IPv6—USToo specific
2001:468:f001:4::10:0/108IPv6—USToo specific
2001:468:f001:4::20:0/107IPv6—USToo specific
2001:468:f001:4::40:0/106IPv6—USToo specific
2001:468:f001:4::80:0/105IPv6—USToo specific
2001:468:f001:4::100:0/104IPv6—USToo specific
2001:468:f001:4::200:0/103IPv6—USToo specific
2001:468:f001:4::400:0/102IPv6—USToo specific
2001:468:f001:4::800:0/101IPv6—USToo specific
2001:468:f001:4::1000:0/100IPv6—USToo specific
2001:468:f001:4::2000:0/99IPv6—USToo specific
2001:468:f001:4::4000:0/98IPv6—USToo specific
2001:468:f001:4::8000:0/97IPv6—USToo specific
2001:468:f001:4:0:1::/96IPv6—USToo specific
2001:468:f001:4:0:2::/95IPv6—USToo specific
2001:468:f001:4:0:4::/94IPv6—USToo specific
2001:468:f001:4:0:8::/93IPv6—USToo specific
2001:468:f001:4:0:10::/92IPv6—USToo specific
2001:468:f001:4:0:20::/91IPv6—USToo specific
2001:468:f001:4:0:40::/90IPv6—USToo specific
2001:468:f001:4:0:80::/89IPv6—USToo specific
2001:468:f001:4:0:100::/88IPv6—USToo specific
2001:468:f001:4:0:200::/87IPv6—USToo specific
2001:468:f001:4:0:400::/86IPv6—USToo specific
2001:468:f001:4:0:800::/85IPv6—USToo specific
2001:468:f001:4:0:1000::/84IPv6—USToo specific
2001:468:f001:4:0:2000::/83IPv6—USToo specific
2001:468:f001:4:0:4000::/82IPv6—USToo specific
2001:468:f001:4:0:8000::/81IPv6—USToo specific
2001:468:f001:4:1::/80IPv6—USToo specific
2001:468:f001:4:2::/79IPv6—USToo specific
2001:468:f001:4:4::/78IPv6—USToo specific
2001:468:f001:4:8::/77IPv6—USToo specific
2001:468:f001:4:10::/76IPv6—USToo specific
2001:468:f001:4:20::/75IPv6—USToo specific
2001:468:f001:4:40::/74IPv6—USToo specific
2001:468:f001:4:80::/73IPv6—USToo specific
2001:468:f001:4:100::/72IPv6—USToo specific
2001:468:f001:4:200::/71IPv6—USToo specific
2001:468:f001:4:400::/70IPv6—USToo specific
2001:468:f001:4:800::/69IPv6—USToo specific
2001:468:f001:4:1000::/68IPv6—USToo specific
2001:468:f001:4:2000::/67IPv6—USToo specific
2001:468:f001:4:4000::/66IPv6—USToo specific
2001:468:f001:4:8000::/65IPv6—USToo specific
2001:468:f001:5::/64IPv6—USToo specific
2001:468:f001:6::/63IPv6—USToo specific
2001:468:f001:8::/61IPv6—USToo specific
2001:468:f001:10::/60IPv6—USToo specific
2001:468:f001:20::/59IPv6—USToo specific
2001:468:f001:40::/58IPv6—USToo specific
2001:468:f001:80::/57IPv6—USToo specific
2001:468:f001:100::/56IPv6—USToo specific
2001:468:f001:200::/55IPv6—USToo specific
2001:468:f001:400::/54IPv6—USToo specific
2001:468:f001:800::/53IPv6—USToo specific
2001:468:f001:1000::/52IPv6—USToo specific
2001:468:f001:2000::/51IPv6—USToo specific
2001:468:f001:4000::/50IPv6—USToo specific
2001:468:f001:8000::/49IPv6—USToo specific
2001:468:f002::/47IPv6—US
2001:468:f004::/46IPv6—US
2001:468:f008::/45IPv6—US
2001:468:f010::/44IPv6—US
2001:468:f020::/43IPv6—US
2001:468:f040::/42IPv6—US
2001:468:f080::/42IPv6—US
2001:468:f0c0::/43IPv6—US
2001:468:f0e0::/44IPv6—US
2001:468:f0f0::/45IPv6—US
2001:468:f0f8::/46IPv6—US
2001:468:f0fc::/47IPv6—US
2001:468:f0fe::/48IPv6—US
2001:468:f100::/40IPv6—US
2001:468:f200::/39IPv6—US
2001:468:f400::/38IPv6—US
2001:468:f800::/37IPv6—US