211.76.168.0/21 National Health Research Institutes
Announced by AS18181 National Health Research Institutes. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 211.76.168.0/21
Prefix
Origin
AS18181 NHRINet
RPKI
RPKI valid
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 2 covering
In RouteViews
2026-10-13 04:03 UTC
Paths
How 211.76.168.0/21 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 3491 4780 18181
| Origin | AS18181 National Health Research Institutes |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 1h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 6453 4780 18181
| Origin | AS18181 National Health Research Institutes |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 10h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4780 18181
| Origin | AS18181 National Health Research Institutes |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 10h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS18181 to originate 211.76.160.0/20 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 211.76.160.0/20 | /24 | AS18181 NHRINet | APNIC |
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 |
|---|---|---|---|---|
| 211.76.168.0/21 | AS18181 NHRINet | NTTCOM | NHRINet , sub-set (proxy-registered route object) | MAINT-ASNET |
| 211.76.160.0/20 covering | AS18181 NHRINet | NTTCOM | NHRINet , super-set (proxy-registered route object) | MAINT-ASNET |
| 211.76.160.0/20 covering | AS18181 NHRINet | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.