asn.dev

Address space

AS30058 FDCSERVERS

Unclassified ARIN

IPv4 prefixes 530 370K addresses
IPv6 prefixes 103
Most common size /23 IPv4
Flagged 16

Shape

IPv4 prefix sizes

All IPv4
/18
/18: 1
1
/20
/20: 12
12
/21
/21: 31
31
/22
/22: 92
92
/23
/23: 192
192
/24
/24: 186
186
/25
/25: 2
2
/26
/26: 2
2
/27
/27: 2
2
/28
/28: 2
2
/29
/29: 2
2
/30
/30: 2
2
/31
/31: 2
2
/32
/32: 2
2

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
/32
/32: 1
1
/40
/40: 1
1
/46
/46: 4
4
/47
/47: 25
25
/48
/48: 72
72

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America633

Review

Flagged prefixes

16 of 633
PrefixFamilyAddressesCountryFlags
50.7.151.0/27IPv432USToo specific
50.7.151.32/29IPv48USToo specific
50.7.151.40/30IPv44USToo specific
50.7.151.44/31IPv42USToo specific
50.7.151.46/32IPv41USToo specific
50.7.151.48/28IPv416USToo specific
50.7.151.64/26IPv464USToo specific
50.7.151.128/25IPv4128USToo specific
50.7.161.0/25IPv4128USToo specific
50.7.161.128/26IPv464USToo specific
50.7.161.192/28IPv416USToo specific
50.7.161.208/29IPv48USToo specific
50.7.161.216/31IPv42USToo specific
50.7.161.219/32IPv41USToo specific
50.7.161.220/30IPv44USToo specific
50.7.161.224/27IPv432USToo specific

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