220.196.2.0/23 China Unicom Shanghai network
Announced by AS17621 China Unicom Shanghai network. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 220.196.2.0/23
Prefix
Origin
AS17621 CNCGROUP-SH
RPKI
RPKI valid
Size
512 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 3 covering
In RouteViews
2026-10-12 12:02 UTC
Paths
How 220.196.2.0/23 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 13760 3356 4837 17621
| Origin | AS17621 China Unicom Shanghai network |
| Origin code | IGP |
| Communities | 3356:3 3356:22 3356:100 3356:123 3356:575 3356:901 3356:2051 36601:150 36601:2001 36601:13760 |
| Updated | 4d 10h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 4837 17621
| Origin | AS17621 China Unicom Shanghai network |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 19h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4837 17621
| Origin | AS17621 China Unicom Shanghai network |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 19h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS17621 to originate 220.196.2.0/23 up to /23. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 220.196.2.0/23 | /23 | AS17621 CNCGROUP-SH | APNIC |
| 220.196.0.0/17 | /17 | AS17621 CNCGROUP-SH | 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 |
|---|---|---|---|---|
| 220.196.2.0/23 | AS17621 CNCGROUP-SH | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 220.196.2.0/23 | AS17621 CNCGROUP-SH | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 220.196.0.0/17 covering | AS17621 CNCGROUP-SH | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 220.196.0.0/17 covering | AS17621 CNCGROUP-SH | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 220.192.0.0/12 covering | AS4837 CHINA169-Backbone | APNIC | China Unicom Network | MAINT-CNCGROUP-RR |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.