asn.dev

Address space

AS6192 UCDAVIS-CORE

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

Shape

Prefix sizes

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

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
/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::118:9a40:3c80/123IPv6USToo specific
2607:f380:1::118:9a41:8800/122IPv6USToo 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

41 total
PrefixFamilyAddressesCountryFlags
128.120.0.0/18IPv416,384US
128.120.64.0/20IPv44,096US
128.120.80.0/24IPv4256US
128.120.81.0/24IPv4256US
128.120.82.0/23IPv4512US
128.120.84.0/22IPv41,024US
128.120.88.0/21IPv42,048US
128.120.96.0/19IPv48,192US
128.120.128.0/17IPv432,768US
137.164.3.200/31IPv42USToo specific
137.164.24.128/30IPv44USToo specific
152.79.0.0/17IPv432,768US
152.79.128.0/23IPv4512US
152.79.131.0/24IPv4256US
152.79.132.0/22IPv41,024US
152.79.136.0/21IPv42,048US
152.79.144.0/20IPv44,096US
152.79.160.0/19IPv48,192US
152.79.192.0/18IPv416,384US
168.150.0.0/17IPv432,768US
169.237.0.0/16IPv465,536US
192.82.111.0/24IPv4256US
2607:f380::118:9a40:3c80/123IPv6USToo specific
2607:f380:1::118:9a41:8800/122IPv6USToo specific
2607:f380:842::/48IPv6US
2607:f810::/39IPv6US
2607:f810:200::/40IPv6US
2607:f810:300::/42IPv6US
2607:f810:340::/42IPv6US
2607:f810:380::/41IPv6US
2607:f810:400::/38IPv6US
2607:f810:800::/38IPv6US
2607:f810:c00::/39IPv6US
2607:f810:e00::/40IPv6US
2607:f810:f00::/42IPv6US
2607:f810:f40::/42IPv6US
2607:f810:f80::/41IPv6US
2607:f810:1000::/36IPv6US
2607:f810:2000::/35IPv6US
2607:f810:4000::/34IPv6US
2607:f810:8000::/33IPv6US