AS9848 SEJONG NETWORKS

South Korea SejongTelecom-AS-KR APNIC 224 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

990,777

IPv6 /48 networks

131,072

RPKI

0 valid226 no ROA

Peers and downstreams

Holder

AS name: SejongTelecom-AS-KR
Description: SEJONG NETWORKS
Organisation: SEJONG NETWORKS
Abuse contact: Not published
Assigned: 2000-02-03

114.199.18.245/32 114.199.34.60/32 114.199.48.245/32 114.199.53.234/32 202.30.147.1/32 202.30.147.129/32 202.30.147.13/32 202.30.147.133/32 202.30.147.137/32 202.30.147.141/32 202.30.147.145/32 202.30.147.149/32 202.30.147.162/32 202.30.147.17/32 202.30.147.174/32 202.30.147.209/32 202.30.147.21/32 202.30.147.213/32 202.30.147.221/32 202.30.147.34/32 202.30.147.46/32 202.30.147.5/32 202.30.147.65/32 202.30.147.69/32 202.30.147.73/32 202.30.147.77/32 202.30.147.81/32 202.30.147.85/32 202.30.147.9/32 202.30.147.93/32 202.30.148.145/32 202.30.152.233/32 202.30.153.129/32 202.30.155.1/32 202.30.197.137/32 202.30.197.141/32 202.30.197.193/32 202.30.197.205/32 202.30.199.42/32 202.30.209.0/24 202.30.210.0/24 202.30.212.0/24 202.30.213.0/24 202.30.217.0/24 202.30.227.129/32 202.30.227.41/32 202.30.228.2/32 202.30.228.3/32 202.30.228.66/32 202.30.228.67/32 202.30.232.0/24 202.30.233.0/24 202.30.234.0/24 202.30.235.0/24 202.30.236.0/24 202.30.237.0/24 202.30.238.0/24 202.30.239.0/24 202.30.240.0/24 202.30.241.0/24 202.30.242.0/24 202.30.243.0/24 202.30.249.0/24 202.30.251.225/32 202.30.252.41/32 203.227.0.0/16 203.227.176.0/20 203.227.186.0/24 203.227.189.0/24 203.227.32.0/19 203.227.48.0/24 203.228.255.225/32 203.231.0.0/16 203.231.104.0/21 203.231.224.0/19 203.231.242.0/24 203.231.254.0/24 203.231.97.0/24 203.235.0.0/17 203.235.128.0/18 203.235.144.0/20 203.235.185.0/24 203.235.40.0/24 203.235.96.0/22 203.236.128.0/18 203.236.144.0/20 203.238.0.0/17 203.238.38.0/23 203.239.0.0/17 203.239.111.0/24 203.239.31.0/24 203.239.33.0/24 203.240.129.222/32 203.240.132.0/24 203.240.133.0/24 203.240.134.0/24 203.240.144.0/24 203.240.145.0/24 203.240.146.0/24 203.240.147.0/24 203.240.148.0/24 203.240.153.0/24 203.240.194.0/24 203.240.229.1/32 203.240.229.2/32 203.240.229.5/32 203.240.229.6/32 203.240.244.0/24 203.243.128.0/17 203.243.128.0/21 203.248.0.0/17 203.248.21.202/32 203.248.21.204/32 203.248.21.207/32 203.248.21.208/32 203.248.21.210/32 203.248.21.224/32 203.248.80.0/20 203.248.94.0/24 203.251.216.15/32 203.251.246.0/24 203.251.249.0/24 203.251.250.0/24 203.251.252.0/24 203.251.253.0/24 203.255.112.0/23 203.255.116.0/22 203.255.128.0/19 210.103.128.0/17 210.109.0.0/16 210.109.200.0/21 210.112.0.0/17 210.112.117.0/24 210.112.16.0/20 210.112.32.0/19 210.112.64.0/19 210.116.0.0/18 210.116.128.0/17 210.116.246.0/23 210.118.135.0/24 210.118.138.0/24 210.118.236.0/24 210.118.237.0/24 210.121.0.0/17 210.121.40.0/21 210.121.56.0/21 210.122.0.0/16 210.122.160.0/21 210.122.230.0/23 210.122.248.0/21 210.126.128.0/17 210.126.152.0/21 210.126.224.0/21 210.126.232.0/21 210.127.128.0/18 210.127.244.229/32 210.127.64.0/18 210.127.64.0/21 210.98.64.0/18 211.111.128.0/20 211.111.144.0/20 211.111.144.0/21 211.115.192.0/19 211.116.176.0/20 211.116.191.0/24 211.116.192.0/20 211.172.104.0/21 211.172.96.0/20 211.172.96.0/21 211.189.160.0/19 211.189.164.0/24 211.189.168.0/21 211.190.37.0/24 211.190.5.0/24 211.236.224.0/19 211.236.224.0/20 211.236.224.0/22 211.236.232.0/22 211.236.236.0/22 211.238.0.0/20 211.238.16.0/20 211.238.16.0/21 211.239.0.0/17 211.239.121.175/32 211.239.128.0/18 211.239.192.0/18 211.239.193.0/24 211.239.201.0/24 211.239.202.0/24 211.239.236.0/24 211.255.224.0/20 211.255.240.0/20 211.255.240.0/21 211.36.192.0/19 211.36.192.0/22 211.36.196.0/22 211.36.200.0/22 211.36.204.0/22 211.36.208.0/20 211.36.213.228/32 211.39.160.0/19 211.43.160.0/19 211.56.192.0/19 58.180.101.8/32 58.180.133.0/24 58.180.136.0/24 58.180.230.145/32 58.180.7.0/24 61.100.0.0/17 61.100.128.0/18 61.100.180.146/32 61.109.128.0/17 61.111.179.0/24 61.250.64.0/18 61.252.160.0/20 61.252.176.0/20 61.97.64.0/20 61.97.96.0/20 61.97.96.0/21 61.97.96.0/24 64.23.64.0/20 66.232.136.0/21 66.232.140.0/22 66.232.144.0/22

AS3608	Korea Rural Community Corporation KRC-AS-KR-KR
AS4664	Shinbiro HIT-KR-AP
AS4670	Shinbiro HYUNDAI-KR
AS7562	HCN Dongjak HCNSEOCHO-AS-KR-KR
AS9493	HMC SECURITIES CO., LTD. SHS-AS-KR
AS9527	VP VP01-AS-KR-KR
AS9577	KYOBO SECURITIES KYOBOTRADE-AS-KR
AS9632	SEOUL DAIRY CO-OP. SDCNET-AS-KR-KR
AS9646	eGIOS eGIOS-AS-KR
AS9709	KIS Information Communication,Inc KISVAN-AS-KR-KR
AS9781	GREEN CABLE TELEVISION STATION GCS-AS-KR-KR
AS9842	LOTTE INNOVATE Co.,Ltd LDCC-AS-KR
AS9947	kt cloud Co., Ltd KTC-AS-KR-KR
AS9952	Hostway IDC HOSTWAY-AS-KR-KR
AS9959	KOREA STOCK EXCHANGE KOREASTOCKEXCHANGE-AS-KR
AS9973	BSITC BSITC-AS-KR-KR
AS9976	Namincheon Brodcasting Co., Ltd. ICNDP-AS-KR-KR
AS10036	DLIVE CNM-AS-KR-KR
AS10049	SK Co., SKNET-AS-KR
AS10171	SKTelink SKTELINK-AS-KR
AS10193	BUSANBANK BUSANBANK-AS-KR-KR
AS17589	GABIA Inc. GABIA-AS-KR-KR
AS17592	Industrial Bank of Korea IBK-AS-KR-KR
AS17833	NCOM ltd. NCOM-AS-KR-KR
AS17837	NHN KCP Corp. KCP-AS-KR-KR
AS18294	SUHYUP BANK NFFC-AS-KR-KR
AS18300	KEPCO KEPRI-AS-KR-KR
AS18305	POSCO DX POSNET-KR
AS18309	Korea VAn Service Co.LTD KOVAN-AS-KR-KR
AS18317	SHINHAN DS SHINHANSYS2-AS-KR-KR
AS21859	Zenlayer Inc ZEN-ECN
AS23588	KAKAO Enterprise KEP-AS-KR-KR
AS23593	bkl LLC BKLNETWORK-AS-KR-KR
AS24509	Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea Xpedite-AS-KR
AS38098	NICE Information Telecommunication, Inc NICEVAN04-AS-KR-KR
AS38425	SEJONG NETWORKS SEJONGTELECOM-AS-KR-KR
AS38676	flexnetworks FLEXNET-AS-KR-KR
AS38686	Tmoney co., ltd KSCC-AS-KR-KR
AS45361	Ulsan Jung-Ang Broadcasting Network JCN-AS-KR-KR
AS45374	CCS CCS-AS-KR-KR
AS45968	KONAI KONACENTER-AS-KR-KR
AS45971	Financial Security Institute FSIISAC-AS-KR-KR
AS45977	CANON KOREA INC. CKBS-AS-KR-KR
AS46011	LX LX-AS-KR-KR
AS55591	Korea Institute for Curriculum and Evaluation KICE-AS-KR-KR
AS131794	KYOBO AXA INVESTMENT MANAGERS Co., Ltd. KYOBOAXA-AS-KR-KR
AS131820	HMM HMM21-AS-KR-KR
AS131826	hy HY-AS-KR-KR
AS131828	KAKAO Enterprise KEPSEL21-AS-KR-KR
AS131866	Digital Edge Korea DEK-AS-KR-KR
AS138195	MOACK.Co.LTD MOACKCOLTD-AS-AP
AS139341	ACE ACE-AS-AP
AS152220	Hwpe-As-Kr-Kr HWPE-AS-KR-KR
AS152274	KRNIC-ASBLOCK-AP AS152274-79
AS152294	KIS Information Communication,Inc KISMSG-AS-KR-KR

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade D · 53/100

fail	Prefixes covered by valid ROAs 0 of 226 announced prefixes are RPKI valid, 226 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 2 IPv6 prefixes.	15/15
pass	More than one upstream 6 upstreams seen in BGP.	10/10
pass	Working abuse contact hostmaster@nic.or.kr is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
fail	No prefixes smaller than /24 or /48 66 prefixes are smaller than most networks accept (114.199.18.245/32, 114.199.34.60/32, 114.199.48.245/32).	0/10
n/a	Registry record maintained We have no change date for this record.

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/9848"><img src="https://ip-fd.net/badge/asn/9848/health.svg" alt="AS9848 network health on IP-FD.net"></a>

Markdown

[![AS9848 network health](https://ip-fd.net/badge/asn/9848/health.svg)](https://ip-fd.net/asn/9848)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 08:14 UTC	Neighbour gone	AS142271	peer
2026-10-04 08:14 UTC	New neighbour	AS152274	downstream
2026-10-04 08:14 UTC	Relationship changed	AS9957	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS9498	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS9318	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS9286	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS9002	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS8966	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS6939	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS4637	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS38008	upstream to peer
2026-10-04 08:14 UTC	Relationship changed	AS137409	upstream to peer
2026-10-04 08:14 UTC	New prefix	203.227.48.0/24
2026-10-04 08:14 UTC	New prefix	203.227.189.0/24
2026-10-04 08:14 UTC	New prefix	203.231.254.0/24
2026-10-04 08:14 UTC	New prefix	203.231.242.0/24
2026-10-04 08:14 UTC	New prefix	203.227.186.0/24

WHOIS

aut-num:        AS9848
as-name:        SejongTelecom-AS-KR-KR
handle:         AS9848
remarks:        SEJONG NETWORKS
administrative,technical:NM5030-KR (AS Manager) <papilion@sejongtelecom.net>
abuse:          IRT-KRNIC-KR (IRT-KRNIC-KR) <hostmaster@nic.or.kr>
source:         APNIC (RDAP)

Routing data

Updated 6 h ago

Registry record

Fetched 6 h ago from APNIC RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/9848

const res = await fetch('https://ip-fd.net/api/v1/asn/9848', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/9848', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/9848');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/9848", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS3491	PCCW Global (HK) Ltd. PCCWG-APAC-HK
AS4766	Korea Telecom KIXS-AS-KR-KR
AS6453	TATA COMMUNICATIONS (AMERICA) INC AS6453
AS15412	Flag Telecom UK Limited FLAG-AS
AS23764	CTGNet
AS58453	China Mobile International Limited CMI-INT-HK

AS4637	Telstra Global ASN-TELSTRA-GLOBAL
AS6939	Hurricane Electric LLC HURRICANE
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC Etisalat-AS
AS9002	RETN Limited RETN-AS
AS9286	KINX KINXIDC-AS-KR-KR
AS9318	SK Broadband Co Ltd SKB-AS-KR
AS9498	BHARTI Airtel Ltd. BBIL-AP
AS9957	KINX KINX-AS-KR
AS24482	SG.GS SGGS-AS-AP
AS35280	F5 Networks SARL F5
AS38008	Aperture Science Limited APERTURE-AS-AP
AS49544	i3D.net B.V i3Dnet
AS134823	Sky Digital Co., Ltd. SDCL-AS-AP
AS137409	GSL Networks Pty LTD GSLNETWORKS-AS-AP
AS138195	MOACK.Co.LTD MOACKCOLTD-AS-AP