63.128.21.0/24 Mimecast North America Inc
Announced by AS30031 Mimecast North America Inc. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 63.128.21.0/24
Prefix
Origin
AS30031 MIMECAST-US
RPKI
RPKI not found
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-15 04:02 UTC
Paths
How 63.128.21.0/24 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 174 3356 30031
| Origin | AS30031 Mimecast North America Inc |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1h 49m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 30031
| Origin | AS30031 Mimecast North America Inc |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 1h 51m ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 30031
| Origin | AS30031 Mimecast North America Inc |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 14h 12m 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 |
|---|---|---|---|---|
| 63.128.21.0/24 | AS30031 MIMECAST-US | RADB | Mimecast | MAINT-AS42427 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.