154.57.21.0/24
Nobody announces 154.57.21.0/24 on its own; it is covered by 154.48.0.0/12 AS174 COGENT-174. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 154.57.21.0/24
Prefix
Origin
not announced
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 1 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 154.57.21.0/24 | /24 | AS199757 KSENIOS-RP | ARIN |
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 154.57.21.0/24 | AS199757 KSENIOS-RP | ARIN | Object Registered for Cogent Customer - HELLENIC EXCHANGES - ATHENS STOCK EXCHANGE SA | MNT-COGC |
| 154.48.0.0/12 covering | AS174 COGENT-174 | RADB | Cogent | MAINT-AS174 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.