2001:250:281b::/48 CERNET2 regional IX at Yunnan University
Announced by AS138378 CERNET2 regional IX at Yunnan University. RPKI valid Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 2001:250:281b::/48
Prefix
Origin
AS138378 CNGI-KMN-IX-AS-AP
RPKI
RPKI valid
Size
65,536 /64s
Less specific
More specifics
0
IRR route objects
0 exact, 6 covering
In RouteViews
2026-10-12 12:08 UTC
RPKI
Route origin authorizations
Covered by a ROA authorizing AS138378 to originate 2001:250:281b::/48 up to /48. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 2001:250:281b::/48 | /48 | AS138378 CNGI-KMN-IX-AS-AP | 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 |
|---|---|---|---|---|
| 2001:250:2800::/40 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:2800::/39 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:2800::/38 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:2800::/37 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:2000::/36 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:2000::/35 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.