203.159.0.0/19 Computer Science
Announced by AS4767 Computer Science. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 203.159.0.0/19
Prefix
Origin
AS4767 AIT-CS-ASN
RPKI
RPKI valid
Size
8,192 addresses
Less specific
More specifics
0
IRR route objects
3 exact, 4 covering
In RouteViews
2026-10-13 17:13 UTC
Paths
How 203.159.0.0/19 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 4651 4621 4767
| Origin | AS4767 Computer Science |
| Origin code | IGP |
| Communities | 174:21201 174:22038 36601:150 36601:174 36601:2001 |
| Updated | 5d 16h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 4651 4621 4767
| Origin | AS4767 Computer Science |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 1h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4651 4621 4767
| Origin | AS4767 Computer Science |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 1h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS4767 to originate 203.159.0.0/18 up to /20. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.159.0.0/18 | /20 | AS4767 AIT-CS-ASN | 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 |
|---|---|---|---|---|
| 203.159.0.0/19 | AS4767 AIT-CS-ASN | APNIC | Asian Institute of Technology PO Box 4 | MAINT-AIOT-TH |
| 203.159.0.0/19 | AS4767 AIT-CS-ASN | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 203.159.0.0/19 | AS4767 AIT-CS-ASN | RADB | AIT's IP Address Route via UniNet | MAINT-AS4621 |
| 203.159.0.0/18 covering | AS4767 AIT-CS-ASN | APNIC | Asian Institute of Technology PO Box 4 | MAINT-AIOT-TH |
| 203.159.0.0/18 covering | AS4767 AIT-CS-ASN | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 203.159.0.0/18 covering | AS4767 AIT-CS-ASN | RADB | CAT route object for AIT | MAINT-THIX-CAT-TH |
| 203.159.0.0/18 covering | AS4750 CSLOXINFO-AS-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.