144.121.104.0/24 Montefiore Medical Center
Announced by AS21821 Montefiore Medical Center. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 144.121.104.0/24
Prefix
Origin
AS21821 MMAHS-01
RPKI
RPKI not found
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 3 covering
In RouteViews
2026-10-16 04:02 UTC
Paths
How 144.121.104.0/24 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 13760 32787 21821
| Origin | AS21821 Montefiore Medical Center |
| Origin code | IGP |
| Communities | 13760:3002 36601:150 36601:2001 36601:13760 |
| Updated | 2d 1h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 32787 21821
| Origin | AS21821 Montefiore Medical Center |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 11h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 32787 21821
| Origin | AS21821 Montefiore Medical Center |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 16h 23m ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
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 |
|---|---|---|---|---|
| 144.121.104.0/24 | AS21821 MMAHS-01 | RADB | Akamai Technologies, Inc. | MAINT-AS32787 |
| 144.121.104.0/22 covering | AS46887 CROWNCASTLE-AS46887 | RADB | N | MAINT-AS27506 |
| 144.121.64.0/18 covering | AS46887 CROWNCASTLE-AS46887 | RADB | Crown Castle Fiber LLC | MAINT-AS27506 |
| 144.121.0.0/16 covering | AS46887 CROWNCASTLE-AS46887 | RADB | Crown Castle Direct | MAINT-AS27506 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.