203.253.136.0/21
Nobody announces 203.253.136.0/21 on its own, and no announced prefix covers it. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 203.253.136.0/21
Prefix
Origin
not announced
Size
2,048 addresses
Less specific
none
More specifics
2
IRR route objects
1 exact, 1 covering
RPKI
Route origin authorizations
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.253.136.0/21 | /21 | AS1237 KREONET-AS-KR-KR | 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 |
|---|---|---|---|---|
| 203.253.136.0/21 | AS1237 KREONET-AS-KR-KR | APNIC | Korea Internet & Security Agency (KISA) Seocho-ro 398, Seocho-gu, Seoul, Korea | MNT-KRNIC-AP |
| 203.253.128.0/20 covering | AS9318 SKB-AS-KR | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
More specific
Prefixes inside 203.253.136.0/21
2 announced prefixes fall inside this one.