218.21.252.0/23 UNICOM InnerMongolia province network
Announced by AS139007 UNICOM InnerMongolia province network. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 218.21.252.0/23
Prefix
Origin
AS139007 UNICOM-NM-WuLanChaBu-IDC
RPKI
RPKI valid
Size
512 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 5 covering
In RouteViews
2026-10-15 16:02 UTC
Paths
How 218.21.252.0/23 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 7029 1299 4837 139007
| Origin | AS139007 UNICOM InnerMongolia province network |
| Origin code | IGP |
| Communities | 7029:2090 36601:150 36601:2001 36601:13760 |
| Updated | 1d 11h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 1299 4837 139007
| Origin | AS139007 UNICOM InnerMongolia province network |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 4837 139007
| Origin | AS139007 UNICOM InnerMongolia province network |
| Origin code | IGP |
| Communities | 6461:5997 36295:100 36295:6461 |
| Updated | 3h 7m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS139007 to originate 218.21.252.0/23 up to /23. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 218.21.252.0/23 | /23 | AS139007 UNICOM-NM-WuLanChaBu-IDC | APNIC |
| 218.21.240.0/20 | /20 | AS4837 CHINA169-Backbone | APNIC |
| 218.21.128.0/17 | /17 | AS4837 CHINA169-Backbone | 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 |
|---|---|---|---|---|
| 218.21.252.0/23 | AS4837 CHINA169-Backbone | APNIC | CNC Group CHINA169 Neimeng Province Network | MAINT-CNCGROUP-RR |
| 218.21.252.0/23 | AS139007 UNICOM-NM-WuLanChaBu-IDC | APNIC | UNICOM-NM-WuLanChaBu-IDC | MAINT-CNCGROUP-RR |
| 218.21.240.0/20 covering | AS4837 CHINA169-Backbone | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 218.21.240.0/20 covering | AS4837 CHINA169-Backbone | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 218.21.128.0/17 covering | AS4837 CHINA169-Backbone | APNIC | CNC Group CHINA169 Neimeng Province Network | MAINT-CNCGROUP-RR |
| 218.21.128.0/17 covering | AS4837 CHINA169-Backbone | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 218.21.128.0/17 covering | AS4837 CHINA169-Backbone | RADB | CMI (Customer Route) | MAINT-AS58453 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.