203.190.16.0/21
Nobody announces 203.190.16.0/21 on its own, and no announced prefix covers it. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 203.190.16.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
none
More specifics
10
IRR route objects
3 exact, 0 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.190.16.0/21 | /24 | AS4780 SEEDNET | APNIC |
| 203.190.16.0/21 | /24 | AS9919 NCIC-TW | APNIC |
| 203.190.16.0/21 | /24 | AS9922 NKB-AS-TW | 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 |
|---|---|---|---|---|
| 203.190.16.0/21 | AS9919 NCIC-TW | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 203.190.16.0/21 | AS9919 NCIC-TW | RADB | HGC (customer route) | MAINT-AS9304 |
| 203.190.16.0/21 | AS9922 NKB-AS-TW | RADB | New Century InfoComm Tech Co., Ltd. | MAINT-AS4780 |
More specific
Prefixes inside 203.190.16.0/21
10 announced prefixes fall inside this one.
Show the 10 prefixes
203.190.16.0/22 AS9922 NKB-AS-TW203.190.16.0/24 AS9922 NKB-AS-TW203.190.17.0/24 AS9922 NKB-AS-TW203.190.18.0/24 AS9922 NKB-AS-TW203.190.19.0/24 AS9922 NKB-AS-TW203.190.20.0/22 AS9922 NKB-AS-TW203.190.20.0/24 AS9922 NKB-AS-TW203.190.21.0/24 AS9922 NKB-AS-TW203.190.22.0/24 AS9922 NKB-AS-TW203.190.23.0/24 AS9922 NKB-AS-TW