HomePrefix Lookup123.109.0.0/16

123.109.0.0/16

🇰🇷
IPv4APNICallocatedNo ROA
CIDR
123.109.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇰🇷 South Korea
City
Seoul (Dobong-ro 81-gil)
RIR
APNIC
Status
allocated
Allocated
2/2/2007

Announced BGP Routes

0 of 0 routes
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
This prefix is not currently announced in BGP. See covering prefix below.

Covering Prefix

18 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
123.109.0.0/17AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.192.0/18AS38095SKB-QRIXNETSDM-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.128.0/18AS38103SKB-QRIXNETKS-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.64.0/19AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.0.0/19AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.224.0/19AS38097SKB-QRIXNETJJ-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.96.0/20AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.112.0/21AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.56.0/21AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.32.0/22AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.124.0/22AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.52.0/22AS9689SKB-FCABLE-AS-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.40.0/22AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.44.0/22AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.36.0/22AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.48.0/22AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.122.0/23AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026
123.109.120.0/23AS38096QRIXNET-AS-KR-KR - SK Broadband Co LtdNo ROA—6/13/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS9689RADBMAINT-AS463711/13/2023
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CitySeoul (Dobong-ro 81-gil)
GEThttps://api.ipctl.io/v1/prefix/123.109.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/123.109.0.0/16" | jq