3.172.4.0/24 Amazon.com, Inc.
Announced by AS16509 Amazon.com, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 3.172.4.0/24
Prefix
Origin
AS16509 AMAZON-02
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 1 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 3.172.4.0/24 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 13760 16509
| Origin | AS16509 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 13760:3002 36601:150 36601:2001 36601:13760 |
| Updated | 4d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 16509
| Origin | AS16509 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 16509×2
| Origin | AS16509 Amazon.com, Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 22h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS16509 to originate 3.172.0.0/18 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 3.172.0.0/18 | /24 | AS16509 AMAZON-02 | ARIN |
| 3.160.0.0/11 | /11 | AS16509 AMAZON-02 | ARIN |
| 3.128.0.0/10 | /10 | AS16509 AMAZON-02 | 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 |
|---|---|---|---|---|
| 3.172.4.0/24 | AS16509 AMAZON-02 | RADB | Amazon - CloudFront | MAINT-AS16509 |
| 3.172.0.0/18 covering | AS16509 AMAZON-02 | RADB | AWS CloudFront Prefix | MAINT-AS16509 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.