221.217.0.0/18 China Unicom Beijing Province Network
Announced by AS4808 China Unicom Beijing Province Network. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 221.217.0.0/18
Prefix
Origin
AS4808 CHINA169-BJ
RPKI
RPKI valid
Size
16,384 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 5 covering
In RouteViews
2026-10-16 12:01 UTC
Paths
How 221.217.0.0/18 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 4837 4808
| Origin | AS4808 China Unicom Beijing Province Network |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 8d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 4837 4808
| Origin | AS4808 China Unicom Beijing Province Network |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 21h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4837 4808
| Origin | AS4808 China Unicom Beijing Province Network |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 1d 2h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS4808 to originate 221.217.0.0/18 up to /18. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 221.217.0.0/18 | /18 | AS4808 CHINA169-BJ | APNIC |
| 221.217.0.0/16 | /16 | AS4808 CHINA169-BJ | APNIC |
| 221.216.0.0/13 | /13 | AS4808 CHINA169-BJ | 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 |
|---|---|---|---|---|
| 221.217.0.0/18 | AS4808 CHINA169-BJ | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 221.217.0.0/18 | AS4808 CHINA169-BJ | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 221.217.0.0/16 covering | AS4808 CHINA169-BJ | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 221.217.0.0/16 covering | AS4808 CHINA169-BJ | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 221.216.0.0/13 covering | AS4808 CHINA169-BJ | APNIC | China Unicom Beijing Province Network | MAINT-CNCGROUP-RR |
| 221.216.0.0/13 covering | AS4808 CHINA169-BJ | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 221.216.0.0/13 covering | AS4808 CHINA169-BJ | RADB | CMI (Customer Route) | MAINT-AS58453 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.