49.52.48.0/24 China Education and Research Network Center
Announced by AS4538 China Education and Research Network Center. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 49.52.48.0/24
Prefix
Origin
AS4538 ERX-CERNET-BKB
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 2 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 49.52.48.0/24 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.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 140570 4538×3
| Origin | AS4538 China Education and Research Network Center |
| Origin code | IGP |
| Communities | 174:21201 174:22039 36601:150 36601:174 36601:2001 |
| Updated | 4d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2914 140570 4538×3
| Origin | AS4538 China Education and Research Network Center |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 140570 4538×3
| Origin | AS4538 China Education and Research Network Center |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 22h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS4538 to originate 49.52.48.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 49.52.48.0/24 | /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 |
|---|---|---|---|---|
| 49.52.48.0/24 | AS4538 ERX-CERNET-BKB | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 49.52.48.0/24 | AS4538 ERX-CERNET-BKB | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 49.52.0.0/14 covering | AS4538 ERX-CERNET-BKB | APNIC | CERNET | MAINT-CERNET-AP |
| 49.52.0.0/14 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.