asn.dev

Address space

AS6192 UCDAVIS-CORE

Education ARIN

IPv4 prefixes 22 229K addresses
IPv6 prefixes 19
Most common size /24 IPv4
Flagged 4

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 1
1
/17
/17: 3
3
/18
/18: 2
2
/19
/19: 2
2
/20
/20: 2
2
/21
/21: 2
2
/22
/22: 2
2
/23
/23: 2
2
/24
/24: 4
4
/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
/33
/33: 1
1
/34
/34: 1
1
/35
/35: 1
1
/36
/36: 1
1
/38
/38: 2
2
/39
/39: 2
2
/40
/40: 2
2
/41
/41: 2
2
/42
/42: 4
4
/48
/48: 1
1
/122
/122: 1
1
/123
/123: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America41

Review

Flagged prefixes

4 of 41
PrefixFamilyAddressesCountryFlags
137.164.3.200/31IPv42USToo specific
137.164.24.128/30IPv44USToo specific
2607:f380::118:9a40:3c80/123IPv6/123USToo specific
2607:f380:1::118:9a41:8800/122IPv6/122USToo specific

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