203.231.136.0/22
🇰🇷CIDR
203.231.136.0/22
IP Version
IPv4
Addresses
1K
Mask
/22 (255.255.252.0)
Country
🇰🇷 South Korea
City
Seoul (Toegye-ro)
RIR
APNIC
Status
announced
Allocated
-
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.231.136.0/22 | AS9973BSITC-AS-KR-KR - BSITC | No ROA | RADB | 5/30/2026 |
Covering Prefix
1 less-specific announcement| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.231.0.0/16 | AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKS | No ROA | — | 5/30/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS9973 | RADB | MAINT-AS4670 | 4/2/2024 |
Origin ASN
AS9973
BSITC-AS-KR-KR - BSITC
Geolocation
API
Open https://api.ipctl.io/v1/prefix/203.231.136.0/22Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.231.136.0/22" | jq
External Links