134.243.0.0/16 Chemical Abstracts Service
Announced by AS33194 Chemical Abstracts Service. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 134.243.0.0/16
Prefix
Origin
AS33194 CAS-AUTONOMOUS-SYSTEM
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
8
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-13 00:02 UTC
Paths
How 134.243.0.0/16 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 13760 3356 33194
| Origin | AS33194 Chemical Abstracts Service |
| Origin code | IGP |
| Communities | 3356:3 3356:22 3356:100 3356:123 3356:575 3356:901 3356:2020 36601:150 36601:2001 36601:13760 |
| Updated | 5d 0h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 33194
| Origin | AS33194 Chemical Abstracts Service |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 9h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 3356 33194
| Origin | AS33194 Chemical Abstracts Service |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 9h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS33194 to originate 134.243.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 134.243.0.0/16 | /24 | AS33194 CAS-AUTONOMOUS-SYSTEM | ARIN |
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 |
|---|---|---|---|---|
| 134.243.0.0/16 | AS33194 CAS-AUTONOMOUS-SYSTEM | ARIN | Chemical Abstracts Service 2540 Olentangy River Road Columbus, OH 43202 US | MNT-CAS-Z |
| 134.243.0.0/16 | AS33194 CAS-AUTONOMOUS-SYSTEM | LEVEL3 | Proxy-registered route object | LEVEL3-MNT |
| 134.243.0.0/16 | AS33194 CAS-AUTONOMOUS-SYSTEM | RADB | RR-RC-Chemical Abstracts Service-MOH | MAINT-RR |
More specific
Prefixes inside 134.243.0.0/16
8 announced prefixes fall inside this one.
Show the 8 prefixes
134.243.5.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.50.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.86.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.90.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.252.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.253.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.254.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM134.243.255.0/24 AS33194 CAS-AUTONOMOUS-SYSTEM