217.28.80.0/21 FIBER Network s.r.o.
Announced by AS51800 FIBER Network s.r.o. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 217.28.80.0/21
Prefix
Origin
AS51800 FIBERNET-ASN
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 02:24 UTC
Paths
How 217.28.80.0/21 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 39392 49025 51800
| Origin | AS51800 FIBER Network s.r.o. |
| Origin code | incomplete |
| Communities | 174:21101 174:22016 36601:150 36601:174 36601:2001 |
| Updated | 3d 23h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 39392 49025 51800
| Origin | AS51800 FIBER Network s.r.o. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 8h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 51800
| Origin | AS51800 FIBER Network s.r.o. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 8h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS51800 to originate 217.28.80.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 217.28.80.0/21 | /21 | AS51800 FIBERNET-ASN | 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 |
|---|---|---|---|---|
| 217.28.80.0/21 | AS51800 FIBERNET-ASN | RIPE | CZFIBERNET1 | MNT-FIBERCZ |