178.21.136.0/21 SerczerNET Malgorzata Nienaltowska
Announced by AS197480 SerczerNET Malgorzata Nienaltowska. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 178.21.136.0/21
Prefix
Origin
AS197480 SerczerNET
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-13 00:02 UTC
Paths
How 178.21.136.0/21 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 13293 29414 197480
| Origin | AS197480 SerczerNET Malgorzata Nienaltowska |
| Origin code | IGP |
| Communities | 174:21101 174:22028 36601:150 36601:174 36601:2001 |
| Updated | 12h 50m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 1299 13293 29414 197480
| Origin | AS197480 SerczerNET Malgorzata Nienaltowska |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 17h 14m ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 197480
| Origin | AS197480 SerczerNET Malgorzata Nienaltowska |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 9h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS197480 to originate 178.21.136.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 178.21.136.0/21 | /21 | AS197480 SerczerNET | 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 |
|---|---|---|---|---|
| 178.21.136.0/21 | AS197480 SerczerNET | RIPE | SERCZERNET-IP | SERCZERNET |