192.5.4.0/23 Internet Systems Consortium, Inc.
Announced by AS3557 Internet Systems Consortium, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 192.5.4.0/23
Prefix
Origin
AS3557 ISC-AS
RPKI
RPKI valid
Size
512 addresses
Less specific
none
More specifics
1
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-12 12:02 UTC
Paths
How 192.5.4.0/23 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 6939 33071 3557
| Origin | AS3557 Internet Systems Consortium, Inc. |
| Origin code | IGP |
| Communities | 13760:3002 36601:150 36601:2001 36601:13760 |
| Updated | 4d 10h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 33071 3557
| Origin | AS3557 Internet Systems Consortium, Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 18h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 33071 3557
| Origin | AS3557 Internet Systems Consortium, Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 18h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS3557 to originate 192.5.4.0/23 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 192.5.4.0/23 | /24 | AS3557 ISC-AS | 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 |
|---|---|---|---|---|
| 192.5.4.0/23 | AS3557 ISC-AS | ARIN | F-Root covering prefix | MNT-ISC-94-Z |
| 192.5.4.0/23 | AS3557 ISC-AS | RADB | Internet Systems Consortium, Inc. aka ISC | MAINT-AS1280 |
More specific
Prefixes inside 192.5.4.0/23
1 announced prefix fall inside this one.