121.254.128.0/17
🇰🇷CIDR
121.254.128.0/17
IP Version
IPv4
Addresses
32.7K
Mask
/17 (255.255.128.0)
Country
🇰🇷 South Korea
City
Seongnam-si
RIR
APNIC
Status
allocated
Allocated
5/29/2006
Announced BGP Routes
1 of 1 routeRPKI:
IRR:
| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.254.128.0/17 | AS3786LGDACOM-KR - LG DACOM Corporation | No ROA | RADB | 5/31/2026 |
Covering Prefix
8 less-specific announcements| Prefix | Origin AS | RPKI | IRR | Last Seen |
|---|---|---|---|---|
| 121.254.206.0/23 | AS57976BLIZZARD Blizzard Entertainment, Inc | No ROA | — | 5/31/2026 |
| 121.254.136.0/24 | AS20940AKAMAI-ASN1 Akamai International B.V. | No ROA | — | 5/31/2026 |
| 121.254.219.0/24 | AS45974NHN-AS-KR-KR - NHNCLOUD | No ROA | — | 5/31/2026 |
| 121.254.245.0/24 | AS45989KLNETCO-AS-KR-KR - KL-Net Corp. | No ROA | — | 5/31/2026 |
| 121.254.161.0/24 | AS55614DANAL-AS-KR-KR - danal.co | No ROA | — | 5/31/2026 |
| 121.254.218.0/24 | AS57976BLIZZARD Blizzard Entertainment, Inc | No ROA | — | 5/31/2026 |
| 121.254.137.0/24 | AS57976BLIZZARD Blizzard Entertainment, Inc | No ROA | — | 5/31/2026 |
| 121.254.187.0/24 | AS131829SBISB-AS-KR-KR - SBI SAVINGS BANK | No ROA | — | 5/31/2026 |
IRR Route Objects
| Origin | Registry | Maintainer | Modified |
|---|---|---|---|
| AS3786 | RADB | MAINT-AS3786 | 11/13/2023 |
Origin ASN
AS3786
LGDACOM-KR - LG DACOM Corporation
Geolocation
API
Open https://api.ipctl.io/v1/prefix/121.254.128.0/17Returns prefix allocation, BGP routes, and more-specific subnets.
curl -s "https://api.ipctl.io/v1/prefix/121.254.128.0/17" | jq
External Links