78.128.128.0/17 CESNET z.s.p.o.
Announced by AS2852 CESNET z.s.p.o. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 78.128.128.0/17
Prefix
Origin
AS2852 CESNET2
RPKI
RPKI valid
Size
32,768 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-15 20:02 UTC
Paths
How 78.128.128.0/17 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 2852×3
| Origin | AS2852 CESNET z.s.p.o. |
| Origin code | IGP |
| Communities | 174:21101 174:22016 36601:150 36601:174 36601:2001 |
| Updated | 7d 19h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174 2852×3
| Origin | AS2852 CESNET z.s.p.o. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 4h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 2852
| Origin | AS2852 CESNET z.s.p.o. |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 8h 34m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS2852 to originate 78.128.128.0/17 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 78.128.128.0/17 | /24 | AS2852 CESNET2 | 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 |
|---|---|---|---|---|
| 78.128.128.0/17 | AS2852 CESNET2 | RADB | auto-generated route object for 78.128.128.0/17 | MAINT-AS2852 |
| 78.128.128.0/17 | AS2852 CESNET2 | RIPE | CESNET-TCZ | AS2852-MNT |