45.91.17.0/24 Mimecast Services Limited
Announced by AS208638 Mimecast Services Limited. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 45.91.17.0/24
Prefix
Origin
AS208638 mimecast-it-corp
RPKI
RPKI valid
Size
256 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 2 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 45.91.17.0/24 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 3356 8220 208638
| Origin | AS208638 Mimecast Services Limited |
| Origin code | IGP |
| Communities | 3356:2 3356:22 3356:100 3356:123 3356:502 3356:901 3356:2066 8220:65000 8220:65010 8220:65403 36601:150 36601:2001 36601:13760 |
| Updated | 4d 10h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 8220 208638
| Origin | AS208638 Mimecast Services Limited |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 2h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 8220 208638
| Origin | AS208638 Mimecast Services Limited |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 2h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS208638 to originate 45.91.16.0/22 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 45.91.16.0/22 | /24 | AS208638 mimecast-it-corp | RIPE |
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 |
|---|---|---|---|---|
| 45.91.17.0/24 | AS208638 mimecast-it-corp | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 |
| 45.91.17.0/24 | AS208638 mimecast-it-corp | RIPE | N | MNT-UK-MIMECAST-IT-1 |
| 45.91.16.0/22 covering | AS208638 mimecast-it-corp | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 |
| 45.91.16.0/22 covering | AS208638 mimecast-it-corp | RIPE | N | MNT-UK-MIMECAST-IT-1 |