asn.dev

Address space

AS23483 SHASTACOE

IPv4 prefixes 13 16.64K addresses
IPv6 prefixes 36
Most common size /23 IPv4
Flagged 2

Shape

Prefix sizes

IPv4
/20
/20: 2
2
/21
/21: 2
2
/22
/22: 2
2
/23
/23: 3
3
/24
/24: 3
3
/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
/38
/38: 1
1
/39
/39: 3
3
/40
/40: 3
3
/41
/41: 3
3
/42
/42: 3
3
/43
/43: 3
3
/44
/44: 3
3
/45
/45: 3
3
/46
/46: 3
3
/47
/47: 3
3
/48
/48: 7
7
/123
/123: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America49

Review

Flagged prefixes

2 of 49
PrefixFamilyAddressesCountryFlags
137.164.13.10/31IPv42USToo specific
2607:f380:1::118:9a40:d0a0/123IPv6—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

49 total