210.42.144.0/24 China Education and Research Network Center
Announced by AS4538 China Education and Research Network Center. RPKI valid Seen by 3 of our 5 looking glass sessions.
Summary
What the table says about 210.42.144.0/24
Prefix
Origin
AS4538 ERX-CERNET-BKB
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 6 covering
In RouteViews
2026-10-15 16:02 UTC
Paths
How 210.42.144.0/24 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.
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 36295 6939 4635 4538×2
| Origin | AS4538 China Education and Research Network Center |
| Origin code | IGP |
| Communities | 903:100 903:900 |
| Updated | 8d 1h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS4538 to originate 210.42.144.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 210.42.144.0/24 | /24 | AS4538 ERX-CERNET-BKB | 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 |
|---|---|---|---|---|
| 210.42.144.0/24 | AS4538 ERX-CERNET-BKB | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 210.42.144.0/24 | AS4538 ERX-CERNET-BKB | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 210.42.144.0/20 covering | AS4538 ERX-CERNET-BKB | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 210.42.144.0/20 covering | AS4538 ERX-CERNET-BKB | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 210.42.0.0/16 covering | AS4538 ERX-CERNET-BKB | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 210.42.0.0/16 covering | AS4538 ERX-CERNET-BKB | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 210.40.0.0/13 covering | AS4538 ERX-CERNET-BKB | APNIC | CERNET | MAINT-CERNET-AP |
| 210.32.0.0/12 covering | AS4538 ERX-CERNET-BKB | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.