210.5.144.0/21 Shanghai DMT Information Network cor.,LTD.
Announced by AS24141 Shanghai DMT Information Network cor.,LTD. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS4812
Summary
What the table says about 210.5.144.0/21
Prefix
Origin
AS24141 DMTNET
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-14 08:02 UTC
Paths
How 210.5.144.0/21 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
| Origin | AS4812 China Telecom (Group) |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 6h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 4812
| Origin | AS4812 China Telecom (Group) |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 15h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 4812
| Origin | AS4812 China Telecom (Group) |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 15h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS24141 to originate 210.5.144.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 210.5.144.0/21 | /21 | AS4812 CHINANET-SH-AP | APNIC |
| 210.5.144.0/21 | /21 | AS24141 DMTNET | 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 |
|---|---|---|---|---|
| 210.5.144.0/21 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 210.5.144.0/21 | AS4812 CHINANET-SH-AP | RADB | Chinanet Shanghai | MAINT-AS4812 |