42.51.0.0/17 Zhengzhou Fastidc Technology Co.,Ltd.
Announced by AS56005 Zhengzhou Fastidc Technology Co.,Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 42.51.0.0/17
Prefix
Origin
AS56005 Fastidc
RPKI
RPKI valid
Size
32,768 addresses
Less specific
none
More specifics
2
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-14 08:02 UTC
Paths
How 42.51.0.0/17 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 139018 56005
| Origin | AS56005 Zhengzhou Fastidc Technology Co.,Ltd. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 8h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4134 139018 56005
| Origin | AS56005 Zhengzhou Fastidc Technology Co.,Ltd. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 16h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4134 139018 56005
| Origin | AS56005 Zhengzhou Fastidc Technology Co.,Ltd. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 16h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS56005 to originate 42.51.0.0/17 up to /17. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 42.51.0.0/17 | /17 | AS56005 Fastidc | 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 |
|---|---|---|---|---|
| 42.51.0.0/17 | AS4837 CHINA169-Backbone | APNIC | China Unicom Henan Province network Addresses from CNNIC | MAINT-CNCGROUP-RR |
| 42.51.0.0/17 | AS4134 CHINANET-BACKBONE | LEVEL3 | Proxy-registered route object | XINGXUNTECHLTD-MNT |
| 42.51.0.0/17 | AS56005 Fastidc | RADB | Chinatelecom HeNan Province Network-Surrogate | MAINT-AS137687 |
More specific
Prefixes inside 42.51.0.0/17
2 announced prefixes fall inside this one.