asn.dev

Address space

AS10867 FHDA-AS

IPv4 prefixes 25 65.80K addresses
IPv6 prefixes 0
Most common size /20 IPv4
Flagged 8

Shape

Prefix sizes

IPv4
/18
/18: 1
1
/19
/19: 3
3
/20
/20: 4
4
/21
/21: 2
2
/22
/22: 2
2
/23
/23: 2
2
/24
/24: 3
3
/25
/25: 3
3
/26
/26: 1
1
/27
/27: 1
1
/28
/28: 2
2
/29
/29: 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.

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America25

Review

Flagged prefixes

8 of 25
PrefixFamilyAddressesCountryFlags
153.18.251.0/27IPv432USToo specific
153.18.251.32/28IPv416USToo specific
153.18.251.48/28IPv416USToo specific
153.18.251.64/26IPv464USToo specific
153.18.251.128/25IPv4128USToo specific
153.18.253.0/25IPv4128USToo specific
153.18.253.128/25IPv4128USToo specific
198.188.255.72/29IPv48USToo 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

25 total
PrefixFamilyAddressesCountryFlags
153.18.0.0/18IPv416,384US
153.18.64.0/19IPv48,192US
153.18.96.0/20IPv44,096US
153.18.112.0/20IPv44,096US
153.18.128.0/19IPv48,192US
153.18.160.0/20IPv44,096US
153.18.176.0/21IPv42,048US
153.18.184.0/22IPv41,024US
153.18.188.0/22IPv41,024US
153.18.192.0/19IPv48,192US
153.18.224.0/20IPv44,096US
153.18.240.0/21IPv42,048US
153.18.248.0/23IPv4512US
153.18.250.0/24IPv4256US
153.18.251.0/27IPv432USToo specific
153.18.251.32/28IPv416USToo specific
153.18.251.48/28IPv416USToo specific
153.18.251.64/26IPv464USToo specific
153.18.251.128/25IPv4128USToo specific
153.18.252.0/24IPv4256US
153.18.253.0/25IPv4128USToo specific
153.18.253.128/25IPv4128USToo specific
153.18.254.0/23IPv4512US
198.188.255.72/29IPv48USToo specific
198.189.18.0/24IPv4256US