203.107.48.0/23 Hangzhou Alibaba Advertising Co.,Ltd.
Announced by AS37963 Hangzhou Alibaba Advertising Co.,Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS134963
Summary
What the table says about 203.107.48.0/23
Prefix
Origin
AS37963 ALIBABA-CN-NET
RPKI
RPKI valid
Size
512 addresses
Less specific
More specifics
0
IRR route objects
3 exact, 16 covering
In RouteViews
2026-10-14 16:02 UTC
Paths
How 203.107.48.0/23 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 174 17984 134963
| Origin | AS134963 Alibaba Cloud (Singapore) Private Limited |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 17984 134963
| Origin | AS134963 Alibaba Cloud (Singapore) Private Limited |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 21h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 17984 134963
| Origin | AS134963 Alibaba Cloud (Singapore) Private Limited |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 1h 58m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS37963 to originate 203.107.0.0/17 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.107.0.0/17 | /24 | AS37963 ALIBABA-CN-NET | APNIC |
| 203.107.0.0/17 | /24 | AS45102 ALIBABA-CN-NET | APNIC |
| 203.107.0.0/17 | /24 | AS134963 ASEPL-AS-AP | APNIC |
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 |
|---|---|---|---|---|
| 203.107.48.0/23 | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/23 | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/23 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 203.107.48.0/22 covering | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/22 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/22 covering | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 203.107.48.0/21 covering | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/21 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/20 covering | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.48.0/20 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.32.0/19 covering | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.32.0/19 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.0.0/18 covering | AS37963 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.0.0/18 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.0.0/18 covering | AS9505 TWGATE-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
| 203.107.0.0/17 covering | AS37963 ALIBABA-CN-NET | APNIC | Hangzhou Alibaba Advertising Co.,Ltd. | MAINT-CNNIC-AP |
| 203.107.0.0/17 covering | AS45102 ALIBABA-CN-NET | APNIC | Alibaba (US) Technology Co., Ltd. | MAINT-CNNIC-AP |
| 203.107.0.0/17 covering | AS45102 ALIBABA-CN-NET | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 203.107.0.0/17 covering | AS45102 ALIBABA-CN-NET | RADB | CMI (Customer Route) | MAINT-AS58453 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.