219.121.224.0/19 Ishikawa Computer Center Co.,LTD.
Announced by AS18121 Ishikawa Computer Center Co.,LTD. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 219.121.224.0/19
Prefix
Origin
AS18121 INCL
RPKI
RPKI valid
Size
8,192 addresses
Less specific
none
More specifics
2
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-16 04:02 UTC
Paths
How 219.121.224.0/19 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 2497 18121×7
| Origin | AS18121 Ishikawa Computer Center Co.,LTD. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 8d 3h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 17676 18121×7
| Origin | AS18121 Ishikawa Computer Center Co.,LTD. |
| 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 17676 18121×7
| Origin | AS18121 Ishikawa Computer Center Co.,LTD. |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 16h 9m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS18121 to originate 219.121.224.0/19 up to /32. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 219.121.224.0/19 | /32 | AS18121 INCL | APNIC |
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 |
|---|---|---|---|---|
| 219.121.224.0/19 | AS18121 INCL | JPIRR | INCL | MAINT-AS4725 |
| 219.121.224.0/19 | AS18121 INCL | RADB | INCL | MAINT-AS4722 |
More specific
Prefixes inside 219.121.224.0/19
2 announced prefixes fall inside this one.