163.253.66.0/23 Internet2
Announced by AS11537 Internet2. RPKI valid Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 163.253.66.0/23
Prefix
Origin
AS11537 INTERNET2-RESEARCH-EDU
RPKI
RPKI valid
Size
512 addresses
Less specific
none
More specifics
1
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-16 00:02 UTC
RPKI
Route origin authorizations
Covered by a ROA authorizing AS11537 to originate 163.253.66.0/23 up to /23. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 163.253.66.0/23 | /23 | AS11537 INTERNET2-RESEARCH-EDU | ARIN |
| 163.253.0.0/16 | /16 | AS11537 INTERNET2-RESEARCH-EDU | ARIN |
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 |
|---|---|---|---|---|
| 163.253.66.0/23 | AS11537 INTERNET2-RESEARCH-EDU | RADB | Internet2 CAIDA LPP Experiment | MAINT-AS11537 |
More specific
Prefixes inside 163.253.66.0/23
1 announced prefix fall inside this one.