203.252.16.0/21 - Korea Telecom (AS4766)
CIDR
203.252.16.0/21
IP Version
IPv4
Addresses
2K
Mask
/21 (255.255.248.0)
Country
🇰🇷 South Korea
City
Osan-si (Hanshindae-gil)
RIR
APNIC
Status
allocated
Allocated
1996-09-29
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
Swipe sideways to see all columns →
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.252.16.0/21 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | Other IRR | 2026-10-13 |
More-Specific Announcements
8 more-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 203.252.16.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.17.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.18.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.19.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.20.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.21.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.22.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
| 203.252.23.0/24 | AS4766 KIXS-AS-KR-KR - Korea Telecom | No ROA | - | 2026-10-13 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4766 | Other IRR | MAINT-AS4766 | 2023-11-13 |
Origin ASN
AS4766
KIXS-AS-KR-KR - Korea Telecom
Related Prefixes
Geolocation
Learn more
- RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
- RPKI validatorCheck ROA coverage for any prefix or ASN
- What is BGP?How prefixes are announced and routed
- More-specific prefixesGlossary: covering and more-specific routes
- IPv4 transfers in the APNIC regionWho bought and sold address space recently
API
Open https://api.ipctl.io/v1/prefix/203.252.16.0/21Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/203.252.16.0/21" | jq
External Links