asn.dev

Address space

AS11293 UCOP-ASN

IPv4 prefixes 16 53.77K addresses
IPv6 prefixes 2
Most common size /24 IPv4
Flagged 5

Shape

Prefix sizes

IPv4
/18
/18: 1
1
/19
/19: 3
3
/20
/20: 2
2
/21
/21: 1
1
/22
/22: 1
1
/23
/23: 1
1
/24
/24: 4
4
/29
/29: 1
1
/31
/31: 2
2

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
/123
/123: 2
2

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America18

Review

Flagged prefixes

5 of 18
PrefixFamilyAddressesCountryFlags
137.164.12.80/31IPv42USToo specific
137.164.12.210/31IPv42USToo specific
137.164.50.112/29IPv48USToo specific
2607:f380:1::118:9a40:c500/123IPv6—USToo specific
2607:f380:1::118:9a40:cd20/123IPv6—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

18 total
PrefixFamilyAddressesCountryFlags
128.48.0.0/18IPv416,384US
128.48.64.0/19IPv48,192US
128.48.96.0/20IPv44,096US
128.48.128.0/21IPv42,048US
128.48.137.0/24IPv4256US
128.48.160.0/19IPv48,192US
128.48.202.0/24IPv4256US
128.48.208.0/20IPv44,096US
128.48.224.0/19IPv48,192US
137.164.12.80/31IPv42USToo specific
137.164.12.210/31IPv42USToo specific
137.164.50.112/29IPv48USToo specific
192.12.84.0/22IPv41,024US
192.35.215.0/24IPv4256US
192.35.216.0/23IPv4512US
192.35.218.0/24IPv4256US
2607:f380:1::118:9a40:c500/123IPv6—USToo specific
2607:f380:1::118:9a40:cd20/123IPv6—USToo specific