203.77.40.0/21
Nobody announces 203.77.40.0/21 on its own; it is covered by 203.77.32.0/20 AS24164 UBBNET-AS-TW. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 203.77.40.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
More specifics
2
IRR route objects
0 exact, 9 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.77.40.0/21 | /24 | AS24164 UBBNET-AS-TW | APNIC |
| 203.77.32.0/19 | /24 | AS9924 TFN-TW | APNIC |
| 203.77.32.0/19 | /24 | AS24164 UBBNET-AS-TW | APNIC |
| 203.77.0.0/18 | /24 | AS4662 QTCN-ASN1 | APNIC |
| 203.77.0.0/18 | /24 | AS24164 UBBNET-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 |
|---|---|---|---|---|
| 203.77.32.0/19 covering | AS24164 UBBNET-AS-TW | NTTCOM | Proxy-registered route object(Customer) | MAINT-AS9924 |
| 203.77.32.0/19 covering | AS24164 UBBNET-AS-TW | RADB | Proxy-registered route object | MAINT-AS9924 |
| 203.77.0.0/18 covering | AS4662 QTCN-ASN1 | APNIC | GCNet (Reach & Range Inc.) | MAINT-GCNET-TW |
| 203.77.0.0/18 covering | AS4662 QTCN-ASN1 | NTTCOM | Taiwan Fixed Network | MAINT-AS9924 |
| 203.77.0.0/18 covering | AS24164 UBBNET-AS-TW | NTTCOM | Proxy-registered route object(Customer) | MAINT-AS9924 |
| 203.77.0.0/18 covering | AS4662 QTCN-ASN1 | RADB | GCNet (Reach&Range Inc.) | MAINT-AS9924 |
| 203.77.0.0/18 covering | AS24164 UBBNET-AS-TW | RADB | Proxy-registered route object | MAINT-AS9924 |
| 203.77.0.0/18 covering | AS9505 TWGATE-AP | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
| 203.77.0.0/17 covering | AS4662 QTCN-ASN1 | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 203.77.40.0/21
2 announced prefixes fall inside this one.