166.19.0.0/16 CoreWeave, Inc
Announced by AS33425 CoreWeave, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 166.19.0.0/16
Prefix
Origin
AS33425 COREWEAVE
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 166.19.0.0/16 is reached
Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 33425
| Origin | AS33425 CoreWeave, Inc |
| Origin code | incomplete |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 33425:114:5500 |
| Updated | 4d 17h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 33425
| Origin | AS33425 CoreWeave, Inc |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 1h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 33425
| Origin | AS33425 CoreWeave, Inc |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 1h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS33425 to originate 166.19.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 166.19.0.0/16 | /24 | AS33425 COREWEAVE | 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 |
|---|---|---|---|---|
| 166.19.0.0/16 | AS33425 COREWEAVE | RADB | CoreWeave, Inc. 101 Eisenhower Pkwy Ste 106 Roseland NJ 07068-1050 | MAINT-AS33425 |