121.53.0.0/17

🇰🇷

CIDR

121.53.0.0/17

IP Version

IPv4

Addresses

32.7K

Mask

/17 (255.255.128.0)

Country

🇰🇷 South Korea

City

Gwangmyeong (Digital-ro 31-gil)

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
121.53.0.0/17	AS9457DREAMX-AS-KR - DREAMLINE CO.	No ROA	RADB	5/30/2026

17 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
121.53.0.0/16	AS9457DREAMX-AS-KR - DREAMLINE CO.	No ROA	—	5/30/2026
121.53.80.0/21	AS7625DAUM-AS-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.104.0/23	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.106.0/23	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.88.0/24	AS7625DAUM-AS-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.89.0/24	AS7625DAUM-AS-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.22.0/24	AS9845CJCKN-AS-KR-KR - LG HelloVision Corp.	No ROA	—	5/30/2026
121.53.93.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.90.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.91.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.92.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.94.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.95.0/24	AS18160AS18160-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.108.0/24	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.109.0/24	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.110.0/24	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026
121.53.111.0/24	AS38099KAKAO-AS-KR-KR - Kakao Corp	No ROA	—	5/30/2026

Origin	Registry	Maintainer	Modified
AS9457	RADB	MAINT-AS3786	11/13/2023

Origin ASN

Geolocation

Country🇰🇷South KoreaKR

RegionGyeonggi-do

CityGwangmyeong (Digital-ro 31-gil)

API

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

curl -s "https://api.ipctl.io/v1/prefix/121.53.0.0/17" | jq

External Links