asn.dev

Address space

AS127 JPL-AS127

Unclassified ARIN

IPv4 prefixes 41 275K addresses
IPv6 prefixes 2
Most common size /24 IPv4
Flagged 13

Shape

IPv4 prefix sizes

All IPv4
/16
/16: 2
2
/17
/17: 2
2
/18
/18: 2
2
/19
/19: 3
3
/20
/20: 2
2
/21
/21: 2
2
/22
/22: 5
5
/23
/23: 4
4
/24
/24: 6
6
/25
/25: 2
2
/26
/26: 2
2
/27
/27: 2
2
/28
/28: 3
3
/29
/29: 1
1
/30
/30: 1
1
/31
/31: 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
/40
/40: 1
1
/48
/48: 1
1

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America43

Review

Flagged prefixes

13 of 43
PrefixFamilyAddressesCountryFlags
137.78.0.0/31IPv42USToo specific
137.78.0.2/31IPv42USToo specific
137.78.0.4/30IPv44USToo specific
137.78.0.8/29IPv48USToo specific
137.78.0.16/28IPv416USToo specific
137.78.0.32/27IPv432USToo specific
137.78.0.64/26IPv464USToo specific
137.78.0.128/25IPv4128USToo specific
192.138.85.0/25IPv4128USToo specific
192.138.85.128/26IPv464USToo specific
192.138.85.192/28IPv416USToo specific
192.138.85.208/28IPv416USToo specific
192.138.85.224/27IPv432USToo specific

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