HomePrefix Lookup203.231.0.0/16

203.231.0.0/16

🇰🇷
IPv4APNICallocatedAS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA
CIDR
203.231.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇰🇷 South Korea
City
Seoul (Dongsung-dong)
RIR
APNIC
Status
allocated
Allocated
4/23/1996

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
203.231.0.0/16AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA
RADB
5/31/2026

Covering Prefix

55 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
203.231.224.0/19AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.104.0/21AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.136.0/22AS9973BSITC-AS-KR-KR - BSITCNo ROA—5/31/2026
203.231.48.0/23AS9684HANWHA-AS-KR - HANWHA Corp. Information Service div.No ROA—5/31/2026
203.231.36.0/23AS17837KCP-AS-KR-KR - NHN KCP Corp.No ROA—5/31/2026
203.231.18.0/24AS3608KRC-AS-KR-KR - Korea Rural Community CorporationNo ROA—5/31/2026
203.231.242.0/24AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.97.0/24AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.254.0/24AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.245.0/24AS9848SejongTelecom-AS-KR-KR - SEJONG NETWORKSNo ROA—5/31/2026
203.231.51.0/24AS17837KCP-AS-KR-KR - NHN KCP Corp.No ROA—5/31/2026
203.231.50.0/24AS17837KCP-AS-KR-KR - NHN KCP Corp.No ROA—5/31/2026
203.231.235.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.234.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.233.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.232.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.224.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.231.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.230.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.237.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.228.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.227.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.226.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.225.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.239.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.238.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.229.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.236.0/24AS17881INETHOSTING-AS-KR-KR - Inet Hosting, Inc.No ROA—5/31/2026
203.231.153.0/24AS18300KEPRI-AS-KR-KR - KEPCONo ROA—5/31/2026
203.231.152.0/24AS18300KEPRI-AS-KR-KR - KEPCONo ROA—5/31/2026
203.231.145.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.144.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.146.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.147.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.148.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.149.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.151.0/24AS18305POSNET-KR - POSCO DXNo ROA—5/31/2026
203.231.12.0/24AS18309KOVAN-AS-KR-KR - Korea VAn Service Co.LTDNo ROA—5/31/2026
203.231.13.0/24AS18309KOVAN-AS-KR-KR - Korea VAn Service Co.LTDNo ROA—5/31/2026
203.231.109.0/24AS21859ZEN-ECN - Zenlayer IncNo ROA—5/31/2026
203.231.25.0/24AS23593BKLNETWORK-AS-KR-KR - bkl LLCNo ROA—5/31/2026
203.231.64.0/24AS23593BKLNETWORK-AS-KR-KR - bkl LLCNo ROA—5/31/2026
203.231.65.0/24AS23593BKLNETWORK-AS-KR-KR - bkl LLCNo ROA—5/31/2026
203.231.133.0/24AS38676FLEXNET-AS-KR-KR - flexnetworksNo ROA—5/31/2026
203.231.132.0/24AS38676FLEXNET-AS-KR-KR - flexnetworksNo ROA—5/31/2026
203.231.131.0/24AS38676FLEXNET-AS-KR-KR - flexnetworksNo ROA—5/31/2026
203.231.130.0/24AS38676FLEXNET-AS-KR-KR - flexnetworksNo ROA—5/31/2026
203.231.129.0/24AS38676FLEXNET-AS-KR-KR - flexnetworksNo ROA—5/31/2026
203.231.82.0/24AS131866DEK-AS-KR-KR - Digital Edge KoreaNo ROA—5/31/2026
203.231.71.0/24AS131866DEK-AS-KR-KR - Digital Edge KoreaNo ROA—5/31/2026
203.231.70.0/24AS131866DEK-AS-KR-KR - Digital Edge KoreaNo ROA—5/31/2026
203.231.80.0/24AS131866DEK-AS-KR-KR - Digital Edge KoreaNo ROA—5/31/2026
203.231.107.0/24AS136897ENJOYVC-AS-AP - Enjoyvc Cloud Group Limited.No ROA—5/31/2026
203.231.38.0/24AS214432ZLIDC Zhilian Technology CO., LTD.No ROA—5/31/2026
203.231.39.0/24AS214432ZLIDC Zhilian Technology CO., LTD.No ROA—5/31/2026

IRR Route Objects

1
OriginRegistryMaintainerModified
AS9848RADBMAINT-AS931811/13/2023
Origin ASN
AS9848
SejongTelecom-AS-KR-KR - SEJONG NETWORKS
Geolocation
Country🇰🇷South KoreaKR
RegionSeoul
CitySeoul (Dongsung-dong)
Coordinates37.5814, 127.0050 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/203.231.0.0/16

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

curl -s "https://api.ipctl.io/v1/prefix/203.231.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP