168.185.4.0/24 Amazon.com, Inc.
Announced by AS21664 Amazon.com, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 168.185.4.0/24
Prefix
Origin
AS21664 AMZN-BYOASN
RPKI
RPKI valid
Size
256 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-13 08:02 UTC
Paths
How 168.185.4.0/24 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 16509 21664
| Origin | AS21664 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 9h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 16509 21664
| Origin | AS21664 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 17h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 16509×2 21664
| Origin | AS21664 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 17h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS21664 to originate 168.185.4.0/22 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 168.185.4.0/22 | /24 | AS14618 AMAZON-AES | ARIN |
| 168.185.4.0/22 | /24 | AS16509 AMAZON-02 | ARIN |
| 168.185.4.0/22 | /24 | AS21664 AMZN-BYOASN | 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 |
|---|---|---|---|---|
| 168.185.4.0/24 | AS16509 AMAZON-02 | RADB | Amazon EC2 Prefix | MAINT-AS16509 |
| 168.185.4.0/24 | AS21664 AMZN-BYOASN | RADB | Amazon EC2 Prefix | MAINT-AS16509 |