211.57.0.0/16
🇰🇷CIDR
211.57.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇰🇷 South Korea
City
Dongnae
RIR
APNIC
Status
allocated
Allocated
2/16/2000
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 211.57.0.0/16 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | RADB | 5/31/2026 |
Covering Prefix
7 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 211.57.166.0/24 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 211.57.35.0/24 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 211.57.238.0/24 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 211.57.70.0/24 | AS4766KIXS-AS-KR-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 211.57.153.0/24 | AS17841NCIA-AS-KR-KR - NATIONAL INFORMATION RESOURCES SERVICE | No ROA | — | 5/31/2026 |
| 211.57.43.0/24 | AS45400NICNET-KR - Korea Telecom | No ROA | — | 5/31/2026 |
| 211.57.255.0/24 | AS131868S2640-AS-KR-KR - SeoulEnergyCorporation | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS4766 | RADB | MAINT-AS4766 | 11/13/2023 |
More Specific Prefixes
| Prefix | AS | Country | Status |
|---|---|---|---|
| 211.57.112.0/20 | 🇰🇷KR | assigned | |
| 211.57.48.0/20 | 🇰🇷KR | assigned | |
| 211.57.224.0/21 | 🇰🇷KR | assigned | |
| 211.57.208.0/21 | 🇰🇷KR | assigned | |
| 211.57.160.0/21 | 🇰🇷KR | assigned | |
| 211.57.72.0/21 | 🇰🇷KR | assigned | |
| 211.57.40.0/21 | 🇰🇷KR | assigned | |
| 211.57.80.0/21 | 🇰🇷KR | assigned | |
| 211.57.128.0/21 | 🇰🇷KR | assigned | |
| 211.57.136.0/22 | 🇰🇷KR | assigned | |
| 211.57.140.0/22 | 🇰🇷KR | assigned | |
| 211.57.144.0/22 | 🇰🇷KR | assigned | |
| 211.57.148.0/22 | 🇰🇷KR | assigned | |
| 211.57.152.0/22 | 🇰🇷KR | assigned | |
| 211.57.156.0/22 | 🇰🇷KR | assigned | |
| 211.57.168.0/22 | 🇰🇷KR | assigned | |
| 211.57.176.0/22 | 🇰🇷KR | assigned | |
| 211.57.192.0/22 | 🇰🇷KR | assigned | |
| 211.57.196.0/22 | 🇰🇷KR | assigned | |
| 211.57.200.0/22 | 🇰🇷KR | assigned | |
| 211.57.204.0/22 | 🇰🇷KR | assigned | |
| 211.57.216.0/22 | 🇰🇷KR | assigned | |
| 211.57.236.0/22 | 🇰🇷KR | assigned | |
| 211.57.252.0/22 | 🇰🇷KR | assigned | |
| 211.57.16.0/22 | 🇰🇷KR | assigned | |
| 211.57.64.0/22 | 🇰🇷KR | assigned | |
| 211.57.68.0/22 | 🇰🇷KR | assigned | |
| 211.57.88.0/22 | 🇰🇷KR | assigned | |
| 211.57.92.0/22 | 🇰🇷KR | assigned | |
| 211.57.172.0/22 | 🇰🇷KR | assigned | |
| 211.57.180.0/22 | 🇰🇷KR | assigned | |
| 211.57.188.0/22 | 🇰🇷KR | assigned | |
| 211.57.220.0/22 | 🇰🇷KR | assigned | |
| 211.57.240.0/22 | 🇰🇷KR | assigned | |
| 211.57.96.0/22 | 🇰🇷KR | assigned | |
| 211.57.0.0/22 | 🇰🇷KR | assigned | |
| 211.57.12.0/22 | 🇰🇷KR | assigned | |
| 211.57.32.0/22 | 🇰🇷KR | assigned | |
| 211.57.184.0/22 | 🇰🇷KR | assigned | |
| 211.57.232.0/22 | 🇰🇷KR | assigned | |
| 211.57.244.0/22 | 🇰🇷KR | assigned | |
| 211.57.4.0/22 | 🇰🇷KR | assigned | |
| 211.57.248.0/22 | 🇰🇷KR | assigned | |
| 211.57.8.0/22 | 🇰🇷KR | assigned | |
| 211.57.20.0/22 | 🇰🇷KR | assigned | |
| 211.57.24.0/22 | 🇰🇷KR | assigned | |
| 211.57.28.0/22 | 🇰🇷KR | assigned | |
| 211.57.36.0/22 | 🇰🇷KR | assigned | |
| 211.57.100.0/22 | 🇰🇷KR | assigned | |
| 211.57.104.0/22 | 🇰🇷KR | assigned | |
| 211.57.108.0/22 | 🇰🇷KR | assigned |
Origin ASN
AS4766
KIXS-AS-KR-KR - Korea Telecom
Geolocation
API
Open https://api.ipctl.io/v1/prefix/211.57.0.0/16Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/211.57.0.0/16" | jq
External Links