66.163.176.0/21 Yahoo Holdings Inc.
Announced by AS36646 Yahoo Holdings Inc. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 66.163.176.0/21
Prefix
Origin
AS36646 YAHOO-NE1
RPKI
RPKI not found
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 3 covering
In RouteViews
2026-10-16 08:02 UTC
Paths
How 66.163.176.0/21 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 10310 36646
| Origin | AS36646 Yahoo Holdings Inc. |
| Origin code | IGP |
| Communities | 13760:3109 36601:150 36601:2001 36601:13760 |
| Updated | 2d 3h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 10310 36646
| Origin | AS36646 Yahoo Holdings Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 13h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 10310 36646
| Origin | AS36646 Yahoo Holdings Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 8d 13h ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
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 |
|---|---|---|---|---|
| 66.163.176.0/21 | AS14780 YAHOO | RADB | Yahoo-content-MUD | MAINT-YAHOO |
| 66.163.176.0/21 | AS36646 YAHOO-NE1 | RADB | Yahoo NE1 | MAINT-YAHOO |
| 66.163.160.0/19 covering | AS10310 YAHOO-1 | RADB | Yahoo-content-all-over | MAINT-YAHOO |
| 66.163.160.0/19 covering | AS26085 YAHOO-2 | RADB | Yahoo arin sc5 block - now a /19 | MAINT-YAHOO |
| 66.163.160.0/19 covering | AS10310 YAHOO-1 | REACH | REACH (Customer Route) | MAINT-REACH-NOC |