123.21.40.0/21
Nobody announces 123.21.40.0/21 on its own; it is covered by 123.21.32.0/20 AS45899 VNPT-AS-VN. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 123.21.40.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
More specifics
5
IRR route objects
1 exact, 11 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 123.20.0.0/14 | /24 | AS45899 VNPT-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 |
|---|---|---|---|---|
| 123.21.40.0/21 | AS45899 VNPT-AS-VN | RADB | VNPT-Net | MAINT-AS45899 |
| 123.21.32.0/20 covering | AS45899 VNPT-AS-VN | APNIC | VietNam Post and Telecom Corporation (VNPT) VNPT-AS-AP | MAINT-VN-VNPT |
| 123.21.32.0/20 covering | AS45899 VNPT-AS-VN | NTTCOM | VietNam Post and Telecom Corporation (VNPT) | MAINT-VDC |
| 123.21.32.0/20 covering | AS45899 VNPT-AS-VN | RADB | auto-generated route object for 123.21.32.0/20 | MAINT-AS45899 |
| 123.21.32.0/19 covering | AS45899 VNPT-AS-VN | RADB | VNPT-Net | MAINT-AS45899 |
| 123.21.0.0/18 covering | AS45899 VNPT-AS-VN | RADB | VNPT-Net | MAINT-AS45899 |
| 123.21.0.0/16 covering | AS45899 VNPT-AS-VN | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 123.20.0.0/14 covering | AS45899 VNPT-AS-VN | APNIC | VNPT | MAINT-VN-VNPT |
| 123.16.0.0/13 covering | AS45899 VNPT-AS-VN | NTTCOM | CMI IP Transit | MAINT-CMI-INT-HK |
| 123.16.0.0/13 covering | AS7643 VNPT-AS-VN | RADB | Proxy-registered route object | MAINT-AS3491 |
| 123.16.0.0/13 covering | AS45899 VNPT-AS-VN | RADB | CMI (Customer Route) | MAINT-AS58453 |
| 123.16.0.0/12 covering | AS45899 VNPT-AS-VN | RADB | VNPT | MAINT-AS9318 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 123.21.40.0/21
5 announced prefixes fall inside this one.