asn.dev

Address space

AS53767 ICASTCENTER

IPv4 prefixes 4 4.61K addresses
IPv6 prefixes 24
Most common size /22 IPv4
Flagged 8

Shape

Prefix sizes

IPv4
/21
/21: 1
1
/22
/22: 2
2
/23
/23: 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
/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
/41
/41: 1
1
/42
/42: 1
1
/43
/43: 1
1
/44
/44: 1
1
/45
/45: 1
1
/46
/46: 1
1
/47
/47: 1
1
/48
/48: 1
1
/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

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America28

Review

Flagged prefixes

8 of 28
PrefixFamilyAddressesCountryFlags
2605:9d00::/56IPv6—USToo specific
2605:9d00:0:200::/55IPv6—USToo specific
2605:9d00:0:400::/54IPv6—USToo specific
2605:9d00:0:800::/53IPv6—USToo specific
2605:9d00:0:1000::/52IPv6—USToo specific
2605:9d00:0:2000::/51IPv6—USToo specific
2605:9d00:0:4000::/50IPv6—USToo specific
2605:9d00:0:8000::/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

28 total
PrefixFamilyAddressesCountryFlags
104.36.20.0/22IPv41,024US
162.251.160.0/22IPv41,024US
199.180.72.0/21IPv42,048US
204.77.222.0/23IPv4512US
2605:9d00::/56IPv6—USToo specific
2605:9d00:0:200::/55IPv6—USToo specific
2605:9d00:0:400::/54IPv6—USToo specific
2605:9d00:0:800::/53IPv6—USToo specific
2605:9d00:0:1000::/52IPv6—USToo specific
2605:9d00:0:2000::/51IPv6—USToo specific
2605:9d00:0:4000::/50IPv6—USToo specific
2605:9d00:0:8000::/49IPv6—USToo specific
2605:9d00:1::/48IPv6—US
2605:9d00:2::/47IPv6—US
2605:9d00:4::/46IPv6—US
2605:9d00:8::/45IPv6—US
2605:9d00:10::/44IPv6—US
2605:9d00:20::/43IPv6—US
2605:9d00:40::/42IPv6—US
2605:9d00:80::/41IPv6—US
2605:9d00:100::/40IPv6—US
2605:9d00:200::/39IPv6—US
2605:9d00:400::/38IPv6—US
2605:9d00:800::/37IPv6—US
2605:9d00:1000::/36IPv6—US
2605:9d00:2000::/35IPv6—US
2605:9d00:4000::/34IPv6—US
2605:9d00:8000::/33IPv6—US