asn.dev

Address space

AS36352 AS-COLOCROSSING

Hosting ARIN

IPv4 prefixes 1,339 995K addresses
IPv6 prefixes 16
Most common size /24 IPv4
Flagged 8

Shape

IPv4 prefix sizes

All IPv4
/18
/18: 2
2
/19
/19: 4
4
/20
/20: 44
44
/21
/21: 102
102
/22
/22: 196
196
/23
/23: 341
341
/24
/24: 642
642
/25
/25: 1
1
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 1
1
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 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
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 1
1
/32
/32: 5
5
/40
/40: 1
1
/47
/47: 1
1
/48
/48: 6
6

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America1,355

Review

Flagged prefixes

8 of 1,355
PrefixFamilyAddressesCountryFlags
107.173.80.0/26IPv464USToo specific
107.173.80.64/27IPv432USToo specific
107.173.80.96/28IPv416USToo specific
107.173.80.112/29IPv48USToo specific
107.173.80.120/30IPv44USToo specific
107.173.80.124/31IPv42USToo specific
107.173.80.126/32IPv41USToo specific
107.173.80.128/25IPv4128USToo specific

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