120.136.128.0/21 Shanghai Data Solution Co., Ltd.
Announced by AS23853 Shanghai Data Solution Co., Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 120.136.128.0/21
Prefix
Origin
AS23853 CNNIC-DSNET-AP
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
7
IRR route objects
2 exact, 2 covering
In RouteViews
2026-10-14 12:02 UTC
Paths
How 120.136.128.0/21 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 174 4134 4812 23853
| Origin | AS23853 Shanghai Data Solution Co., Ltd. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 11h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 4812 23853
| Origin | AS23853 Shanghai Data Solution Co., Ltd. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 19h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 4812 23853
| Origin | AS23853 Shanghai Data Solution Co., Ltd. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 19h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS23853 to originate 120.136.128.0/21 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 120.136.128.0/21 | /24 | AS23853 CNNIC-DSNET-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 |
|---|---|---|---|---|
| 120.136.128.0/21 | AS23853 CNNIC-DSNET-AP | APNIC | Shanghai Data Solution Co., Ltd. 2F,NO.4Buliding 498 Guoshoujing Rd.Shanghai ZJ.Hi-Tech Park | MAINT-CNNIC-AP |
| 120.136.128.0/21 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 120.136.128.0/18 covering | AS23853 CNNIC-DSNET-AP | APNIC | Shanghai Data Solution Co., Ltd. | MAINT-CNNIC-AP |
| 120.136.128.0/18 covering | AS45587 CBCNET-CERNET-AS-AP | NTTCOM | CBCcom Route | MAINT-CBCCOM-NOC |
More specific
Prefixes inside 120.136.128.0/21
7 announced prefixes fall inside this one.