163.181.208.0/24 Alibaba Cloud (Singapore) Private Limited
Announced by AS134963 Alibaba Cloud (Singapore) Private Limited. RPKI valid Seen by 4 of our 5 looking glass sessions. Also originated by AS24429
Summary
What the table says about 163.181.208.0/24
Prefix
Origin
AS134963 ASEPL-AS-AP
RPKI
RPKI valid
Size
256 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 12 covering
In RouteViews
2026-10-16 04:02 UTC
Paths
How 163.181.208.0/24 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 3356 1299 24429
| Origin | AS24429 Zhejiang Taobao Network Co.,Ltd |
| Origin code | IGP |
| Communities | 3356:3 3356:22 3356:86 3356:575 3356:666 3356:901 3356:2013 36601:150 36601:2001 36601:13760 |
| Updated | 7h 40m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 1299 24429
| Origin | AS24429 Zhejiang Taobao Network Co.,Ltd |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 12h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS134963 to originate 163.181.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 163.181.0.0/16 | /24 | AS24429 Taobao | ARIN |
| 163.181.0.0/16 | /24 | AS45102 ALIBABA-CN-NET | ARIN |
| 163.181.0.0/16 | /24 | AS134963 ASEPL-AS-AP | 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 |
|---|---|---|---|---|
| 163.181.208.0/24 | AS24429 Taobao | RADB | Alibaba Cloud CDN | MAINT-ALIBABA-CLOUD |
| 163.181.208.0/24 | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.208.0/23 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.208.0/22 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.208.0/21 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.208.0/20 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.192.0/19 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.192.0/18 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.128.0/17 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba Cloud | MAINT-ALIBABA-CLOUD |
| 163.181.0.0/16 covering | AS45102 ALIBABA-CN-NET | ARIN | Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US | MNT-AL-3 |
| 163.181.0.0/16 covering | AS134963 ASEPL-AS-AP | ARIN | Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US | MNT-AL-3 |
| 163.181.0.0/16 covering | AS45102 ALIBABA-CN-NET | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 163.181.0.0/16 covering | AS24429 Taobao | RADB | ALIBABA CLOUD CDN | MAINT-ALIBABA-CLOUD |
| 163.181.0.0/16 covering | AS45102 ALIBABA-CN-NET | RADB | Alibaba-AS | MAINT-AS9318 |