121.55.128.0/18

🇰🇷

CIDR

121.55.128.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇰🇷 South Korea

City

Hwawŏn (Dalgubeol-daero)

RIR

APNIC

Status

allocated

Allocated

5/26/2006

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
121.55.128.0/18	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	RADB	5/31/2026

12 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
121.55.128.0/20	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.144.0/20	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.176.0/20	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.160.0/20	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.160.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.168.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.176.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.184.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.128.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.136.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.144.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026
121.55.152.0/21	AS9781GCS-AS-KR-KR - GREEN CABLE TELEVISION STATION	No ROA	—	5/31/2026

Origin	Registry	Maintainer	Modified
AS9318	RADB	MAINT-AS9318	11/13/2023
AS9781	RADB	MAINT-AS4766	11/13/2023

Origin ASN

Geolocation

Country🇰🇷South KoreaKR

RegionDaegu

CityHwawŏn (Dalgubeol-daero)

API

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/121.55.128.0/18" | jq

External Links