ResearchRouting table, looking glass, RPKI & IRR

221.133.16.0/20

Nobody announces 221.133.16.0/20 on its own, and no announced prefix covers it. Seen by 0 of our 5 looking glass sessions.

Summary

What the table says about 221.133.16.0/20

Prefix
221.133.16.0/20
Origin
not announced
Size
4,096 addresses
Less specific
none
More specifics
9
IRR route objects
1 exact, 4 covering
RPKI

Route origin authorizations

Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
221.133.0.0/19/24AS7602 SPT-AS-VNAPNIC
IRR

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
221.133.16.0/20AS7602 SPT-AS-VNAPNICSPT-VNMAINT-VN-SPT
221.133.0.0/19 coveringAS7602 SPT-AS-VNAPNICSPT-VNMAINT-VN-SPT
221.133.0.0/19 coveringAS7602 SPT-AS-VNNTTCOMSPT-AS-VNMAINT-VN-VNNIC
221.133.0.0/19 coveringAS7602 SPT-AS-VNRADBSaigon Postel CorporationMAINT-AS4766
221.133.0.0/19 coveringAS7602 SPT-AS-VNREACHREACH (Customer Route)MAINT-REACH-NOC
More specific

Prefixes inside 221.133.16.0/20

9 announced prefixes fall inside this one.

Show the 9 prefixes
221.133.16.0/22 AS7602 SPT-AS-VN221.133.20.0/24 AS7602 SPT-AS-VN221.133.21.0/24 AS7602 SPT-AS-VN221.133.22.0/24 AS7602 SPT-AS-VN221.133.23.0/24 AS7602 SPT-AS-VN221.133.24.0/24 AS7602 SPT-AS-VN221.133.25.0/24 AS7602 SPT-AS-VN221.133.26.0/23 AS7602 SPT-AS-VN221.133.28.0/22 AS7602 SPT-AS-VN
Tools

Check 221.133.16.0/20 live

Looking glassIP to ASN APIRPKI APIIRR API