221.133.0.0/21
Nobody announces 221.133.0.0/21 on its own; it is covered by 221.133.0.0/20 AS7602 SPT-AS-VN. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 221.133.0.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
More specifics
4
IRR route objects
2 exact, 6 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 221.133.0.0/19 | /24 | AS7602 SPT-AS-VN | 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 |
|---|---|---|---|---|
| 221.133.0.0/21 | AS7602 SPT-AS-VN | APNIC | SPT-VN | MAINT-VN-SPT |
| 221.133.0.0/21 | AS7602 SPT-AS-VN | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 221.133.0.0/20 covering | AS7602 SPT-AS-VN | APNIC | SPT-VN | MAINT-VN-SPT |
| 221.133.0.0/20 covering | AS7602 SPT-AS-VN | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 221.133.0.0/19 covering | AS7602 SPT-AS-VN | APNIC | SPT-VN | MAINT-VN-SPT |
| 221.133.0.0/19 covering | AS7602 SPT-AS-VN | NTTCOM | SPT-AS-VN | MAINT-VN-VNNIC |
| 221.133.0.0/19 covering | AS7602 SPT-AS-VN | RADB | Saigon Postel Corporation | MAINT-AS4766 |
| 221.133.0.0/19 covering | AS7602 SPT-AS-VN | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 221.133.0.0/21
4 announced prefixes fall inside this one.