Autonomous System details

AS9848

SEJONG NETWORKS · sejongtelecom.net

South Korea

BitTorrent

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AS9848 – SEJONG NETWORKS

Field	Value
Country	South Korea
Website	sejongtelecom.net
Hosted domains	19,761
IPv4 addresses	990,464
IPv6 addresses	158,456,325,028,528,675,187,087,900,672
ASN type	ISP
Registry	apnic
Updated	a year ago on Sep 10, 2024

Netblock	Company	Num of IPs
203.227.0.0/16	SEJONG NETWORKS	65,536
203.231.0.0/16	SEJONG NETWORKS	65,536
210.109.0.0/16	SEJONG NETWORKS	65,536
210.122.0.0/16	SEJONG NETWORKS	65,536
61.100.0.0/17	SEJONG NETWORKS	32,768
61.109.128.0/17	SEJONG NETWORKS	32,768
203.235.0.0/17	SEJONG NETWORKS	32,768
203.238.0.0/17	SEJONG NETWORKS	32,768
203.239.0.0/17	SEJONG NETWORKS	32,768
203.243.128.0/17	SEJONG NETWORKS	32,768
203.248.0.0/17	SEJONG NETWORKS	32,768
210.103.128.0/17	SEJONG NETWORKS	32,768
210.112.0.0/17	SEJONG NETWORKS	32,768
210.116.128.0/17	SEJONG NETWORKS	32,768
210.121.0.0/17	SEJONG NETWORKS	32,768
210.126.128.0/17	SEJONG NETWORKS	32,768
211.239.0.0/17	SEJONG NETWORKS	32,768
61.100.128.0/18	SEJONG NETWORKS	16,384
61.250.64.0/18	SEJONG NETWORKS	16,384
203.235.128.0/18	SEJONG NETWORKS	16,384
203.236.128.0/18	SEJONG NETWORKS	16,384
210.98.64.0/18	SEJONG NETWORKS	16,384
210.116.0.0/18	SEJONG NETWORKS	16,384
210.127.64.0/18	SEJONG NETWORKS	16,384
210.127.128.0/18	SEJONG NETWORKS	16,384
211.239.128.0/18	SEJONG NETWORKS	16,384
211.239.192.0/18	SEJONG NETWORKS	16,384
203.227.32.0/19	SEJONG NETWORKS	8,192
203.231.224.0/19	INET	8,192
203.255.128.0/19	SEJONG NETWORKS	8,192
210.112.32.0/19	SEJONG NETWORKS	8,192
210.112.64.0/19	SEJONG NETWORKS	8,192
211.36.192.0/19	SEJONG NETWORKS	8,192
211.39.160.0/19	SEJONG NETWORKS	8,192
211.43.160.0/19	SEJONG NETWORKS	8,192
211.56.192.0/19	SEJONG NETWORKS	8,192
211.115.192.0/19	SEJONG NETWORKS	8,192
211.189.160.0/19	SEJONG NETWORKS	8,192
211.236.224.0/19	SEJONG NETWORKS	8,192
61.97.64.0/20	SEJONG NETWORKS	4,096
61.97.96.0/20	SEJONG NETWORKS	4,096
61.252.160.0/20	SEJONG NETWORKS	4,096
61.252.176.0/20	SEJONG NETWORKS	4,096
64.23.64.0/20	Hostway-KR	4,096
203.227.176.0/20	MOACK	4,096
203.235.144.0/20	SEJONG NETWORKS	4,096
203.236.144.0/20	Ezville-LGmetro	4,096
203.248.80.0/20	SEJONG NETWORKS	4,096
210.112.16.0/20	SEJONG NETWORKS	4,096
211.36.208.0/20	Vista	4,096
211.111.128.0/20	SEJONG NETWORKS	4,096
211.111.144.0/20	SEJONG NETWORKS	4,096
211.116.176.0/20	SEJONG NETWORKS	4,096
211.116.192.0/20	Vista	4,096
211.172.96.0/20	SEJONG NETWORKS	4,096
211.236.224.0/20	SEJONG NETWORKS	4,096
211.238.0.0/20	SEJONG NETWORKS	4,096
211.238.16.0/20	SEJONG NETWORKS	4,096
211.255.224.0/20	SEJONG NETWORKS	4,096
211.255.240.0/20	SEJONG NETWORKS	4,096
61.97.96.0/21	SEJONG NETWORKS	2,048
66.232.136.0/21	Hostway-KR	2,048
203.231.104.0/21	EZVILLE	2,048
203.243.128.0/21	SEJONG NETWORKS	2,048
210.109.200.0/21	CYMEN	2,048
210.126.224.0/21	SEJONG NETWORKS	2,048
210.127.64.0/21	SEJONG NETWORKS	2,048
211.111.144.0/21	SEJONG NETWORKS	2,048
211.172.104.0/21	SEJONG NETWORKS	2,048
211.189.168.0/21	Jinnamcable	2,048
211.238.16.0/21	CJCABLEHAEWONDAEKIJANG	2,048
211.255.240.0/21	SEJONG NETWORKS	2,048
66.232.140.0/22	Hostway-KR	1,024
66.232.144.0/22	Hostway-KR	1,024
203.235.96.0/22	ILINKKOREA CO. LTD	1,024
203.255.116.0/22	SEJONG NETWORKS	1,024
211.36.192.0/22	dewsystem	1,024
211.36.196.0/22	SEJONG NETWORKS	1,024
211.36.200.0/22	dewsystem	1,024
211.36.204.0/22	dewsystem	1,024
211.236.224.0/22	RayTelecom	1,024
211.236.232.0/22	SEJONG NETWORKS	1,024
211.236.236.0/22	dewsystem	1,024
203.238.38.0/23	dewsystem	512
203.255.112.0/23	SEJONG NETWORKS	512
210.122.230.0/23	SEJONG NETWORKS	512
58.180.7.0/24	SEJONG NETWORKS	256
58.180.133.0/24	HYUNDAI C&R HDS	256
61.97.96.0/24	SEJONG NETWORKS	256
61.111.179.0/24	Canon Korea Business Solution Headquaters	256
202.30.209.0/24	SEJONG NETWORKS	256
202.30.210.0/24	SEJONG NETWORKS	256
202.30.212.0/24	SEJONG NETWORKS	256
202.30.213.0/24	SEJONG NETWORKS	256
202.30.217.0/24	SEJONG NETWORKS	256
202.30.232.0/24	SEJONG NETWORKS	256
202.30.233.0/24	SEJONG NETWORKS	256
202.30.234.0/24	SEJONG NETWORKS	256
202.30.235.0/24	SEJONG NETWORKS	256
202.30.236.0/24	SEJONG NETWORKS	256
202.30.237.0/24	SEJONG NETWORKS	256
202.30.238.0/24	SEJONG NETWORKS	256
202.30.239.0/24	SEJONG NETWORKS	256
202.30.240.0/24	SEJONG NETWORKS	256
202.30.241.0/24	SEJONG NETWORKS	256
202.30.242.0/24	SEJONG NETWORKS	256
202.30.243.0/24	SEJONG NETWORKS	256
202.30.249.0/24	SEJONG NETWORKS	256
203.227.49.0/24	SEJONG NETWORKS	256
203.227.51.0/24	SEJONG NETWORKS	256
203.227.62.0/24	SEJONG NETWORKS	256
203.227.184.0/24	MOACK	256
203.227.189.0/24	MOACK	256
203.231.242.0/24	SEJONG NETWORKS	256
203.231.245.0/24	SEJONG NETWORKS	256
203.231.254.0/24	SEJONG NETWORKS	256
203.235.185.0/24	SEJONG NETWORKS	256
203.236.144.0/24	SEJONG NETWORKS	256
203.236.148.0/24	SEJONG NETWORKS	256
203.236.150.0/24	SEJONG NETWORKS	256
203.236.151.0/24	SEJONG NETWORKS	256
203.236.154.0/24	Ezville-Seuksu	256
203.236.157.0/24	Ezville-LGmetro	256
203.236.158.0/24	Ezville-LGmetro	256
203.240.132.0/24	SEJONG NETWORKS	256
203.240.133.0/24	SEJONG NETWORKS	256
203.240.134.0/24	SEJONG NETWORKS	256
203.240.144.0/24	SEJONG NETWORKS	256
203.240.145.0/24	SEJONG NETWORKS	256
203.240.146.0/24	SEJONG NETWORKS	256
203.240.147.0/24	SEJONG NETWORKS	256
203.240.148.0/24	SEJONG NETWORKS	256
203.240.153.0/24	SEJONG NETWORKS	256
203.240.194.0/24	SEJONG NETWORKS	256
203.240.244.0/24	SEJONG NETWORKS	256
203.248.82.0/24	SEJONG NETWORKS	256
203.248.85.0/24	SEJONG NETWORKS	256
203.248.87.0/24	SEJONG NETWORKS	256
203.248.88.0/24	SEJONG NETWORKS	256
203.248.89.0/24	SEJONG NETWORKS	256
203.248.91.0/24	SEJONG NETWORKS	256
203.248.93.0/24	SEJONG NETWORKS	256
203.251.246.0/24	SEJONG NETWORKS	256
203.251.249.0/24	SEJONG NETWORKS	256
203.251.250.0/24	SEJONG NETWORKS	256
203.251.252.0/24	SEJONG NETWORKS	256
203.251.253.0/24	SEJONG NETWORKS	256
210.118.135.0/24	HYUNDAI DATA SYSTEM	256
210.118.138.0/24	SEJONG NETWORKS	256
210.118.236.0/24	SEJONG NETWORKS	256
210.118.237.0/24	SEJONG NETWORKS	256
211.116.191.0/24	SEJONG NETWORKS	256
211.189.164.0/24	SEJONG NETWORKS	256
211.190.5.0/24	SEJONG NETWORKS	256
211.190.37.0/24	Lotte Capital	256
211.239.201.0/24	SEJONG NETWORKS	256
211.239.202.0/24	SEJONG NETWORKS	256
211.239.236.0/24	SEJONG NETWORKS	256

Netblock	Company
2001:3a8::/32	SEJONG NETWORKS
2001:cf0::/32	SEJONG NETWORKS

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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS9848
                                                OrgID:          AS9848
                                                ASName:         AS9848
                                                ASNumber:       AS9848
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 19,761 domain names hosted across 2,465 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
203.227.189.88	██████████	259
203.231.248.168	██████████	167
203.227.189.156	██████████	167
203.227.189.213	██████████	167
203.231.248.229	██████████	167
203.231.248.57	██████████	167
203.227.189.197	██████████	136
203.227.160.21	██████████	114
210.122.11.217	██████████	113
203.239.11.7	██████████	104

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Hosted Domains API & Database

Peers

There are 83 peers for this ASN.

Peers	Name
AS10036	DLIVE
AS10049	SK Co.,
AS10171	SKTelink
AS10193	BUSANBANK
AS131794	KYOBO AXA INVESTMENT MANAGERS Co., Ltd.
AS131820	HMM
AS131826	hy
AS131828	KAKAO Enterprise
AS131866	Digital Edge Korea
AS132337	Axclusive
AS134823	Sky Digital Co., Ltd.
AS137409	GSL Networks Pty LTD
AS138195	MOACK.Co.LTD
AS139341	ACE
AS142271	EWS DS Networks Inc
AS14537	Continent 8 LLC
AS152220	Hanwha Asset Management
AS152294	KIS Information Communication,Inc
AS15412	FLAG TELECOM UK LIMITED
AS17592	Industrial Bank of Korea
AS17608	ABN
AS17833	NCOM ltd.
AS17837	NHN KCP Corp.
AS18294	SUHYUP BANK
AS18300	KEPCO
AS18305	POSCO DX
AS18309	Korea VAn Service Co.LTD
AS18317	SHINHAN DS
AS18403	FPT Telecom Company
AS20940	Akamai International B.V.
AS23588	KAKAO Enterprise
AS23593	bkl LLC
AS23764	CTGNet
AS24115	Equinix
AS24482	SG.GS
AS24509	Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea
AS3491	PCCW Global, Inc.
AS35280	F5 Networks SARL
AS3608	Korea Rural Community Corporation
AS38098	NICE Information Telecommunication, Inc
AS38106	Korea Security Technology Co., Ltd.
AS38195	Superloop
AS38425	SEJONG NETWORKS
AS38676	flexnetworks
AS38686	Tmoney co., ltd
AS45361	Ulsan Jung-Ang Broadcasting Network
AS45374	CCS
AS45968	KONAI
AS45971	Financial Security Institute
AS45977	CANON KOREA INC.
AS4637	Telstra Global
AS4664	Shinbiro
AS4670	Shinbiro
AS4766	Korea Telecom
AS48266	Catixs Ltd
AS49544	i3D.net B.V
AS55591	Korea Institute for Curriculum and Evaluation
AS5580	GTT Communications Netherlands B.V.
AS58453	China Mobile International Limited
AS59318	SINET Fiber One, Cambodia's Fastest Broadband Service.
AS63927	RISE
AS6453	TATA COMMUNICATIONS (AMERICA) INC
AS6939	Hurricane Electric LLC
AS7562	HCN Dongjak
AS7713	PT Telekomunikasi Indonesia
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9002	RETN Limited
AS9318	SK Broadband Co Ltd
AS9493	HMC SECURITIES CO., LTD.
AS9498	BHARTI Airtel Ltd.
AS9505	Taiwan Internet Gateway
AS9527	VP
AS955	LSHIY LLC
AS9577	KYOBO SECURITIES
AS9646	eGIOS
AS9709	KIS Information Communication,Inc
AS9781	GREEN CABLE TELEVISION STATION
AS9842	LOTTE INNOVATE Co.,Ltd
AS9947	kt cloud Co., Ltd
AS9952	Hostway IDC
AS9959	KOREA STOCK EXCHANGE
AS9973	BSITC
AS9976	Namincheon Brodcasting Co., Ltd.

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ASN API & Database

Upstreams

There are 7 upstreams for this ASN.

upstreams	Name
AS15412	FLAG TELECOM UK LIMITED
AS23764	CTGNet
AS3491	PCCW Global, Inc.
AS4637	Telstra Global
AS4766	Korea Telecom
AS58453	China Mobile International Limited
AS6453	TATA COMMUNICATIONS (AMERICA) INC

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ASN API & Database

Downstreams

There are 50 downstreams for this ASN.

Downstreams	Name
AS10036	DLIVE
AS10049	SK Co.,
AS10171	SKTelink
AS10193	BUSANBANK
AS131794	KYOBO AXA INVESTMENT MANAGERS Co., Ltd.
AS131820	HMM
AS131826	hy
AS131828	KAKAO Enterprise
AS131866	Digital Edge Korea
AS139341	ACE
AS152220	Hanwha Asset Management
AS152294	KIS Information Communication,Inc
AS17592	Industrial Bank of Korea
AS17608	ABN
AS17833	NCOM ltd.
AS17837	NHN KCP Corp.
AS18294	SUHYUP BANK
AS18300	KEPCO
AS18305	POSCO DX
AS18309	Korea VAn Service Co.LTD
AS18317	SHINHAN DS
AS23588	KAKAO Enterprise
AS23593	bkl LLC
AS24509	Xpedite Systems Electronic document distribution and data messaging service provider Seoul, Korea
AS3608	Korea Rural Community Corporation
AS38098	NICE Information Telecommunication, Inc
AS38106	Korea Security Technology Co., Ltd.
AS38676	flexnetworks
AS38686	Tmoney co., ltd
AS45361	Ulsan Jung-Ang Broadcasting Network
AS45374	CCS
AS45968	KONAI
AS45971	Financial Security Institute
AS45977	CANON KOREA INC.
AS4664	Shinbiro
AS4670	Shinbiro
AS55591	Korea Institute for Curriculum and Evaluation
AS7562	HCN Dongjak
AS9493	HMC SECURITIES CO., LTD.
AS9527	VP
AS9577	KYOBO SECURITIES
AS9646	eGIOS
AS9709	KIS Information Communication,Inc
AS9781	GREEN CABLE TELEVISION STATION
AS9842	LOTTE INNOVATE Co.,Ltd
AS9947	kt cloud Co., Ltd
AS9952	Hostway IDC
AS9959	KOREA STOCK EXCHANGE
AS9973	BSITC
AS9976	Namincheon Brodcasting Co., Ltd.

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ASN API & Database

Pingable IPs

530 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
211.111.150.132	AS9848 SEJONG NETWORKS	`1.00ms` from Seoul, KR
210.109.203.255	AS9848 SEJONG NETWORKS	`0.77ms` from Seoul, KR
203.231.246.116	AS9848 SEJONG NETWORKS	`0.90ms` from Seoul, KR
203.231.244.230	AS9848 SEJONG NETWORKS	`0.74ms` from Seoul, KR
203.227.129.20	AS9848 SEJONG NETWORKS	`1.22ms` from Seoul, KR
203.231.35.17	AS9848 SEJONG NETWORKS	`2.37ms` from Seoul, KR
210.112.10.230	AS9848 SEJONG NETWORKS	`0.86ms` from Seoul, KR
203.231.106.12	AS9848 SEJONG NETWORKS	`0.76ms` from Seoul, KR
211.239.212.194	AS9848 SEJONG NETWORKS	`0.70ms` from Seoul, KR
203.235.77.237	AS9848 SEJONG NETWORKS	`1.23ms` from Seoul, KR
211.189.187.236	AS9848 SEJONG NETWORKS	`3.07ms` from Seoul, KR
210.109.222.9	AS9848 SEJONG NETWORKS	`0.89ms` from Seoul, KR
210.127.70.1	AS9848 SEJONG NETWORKS	`1.02ms` from Seoul, KR
211.255.241.1	AS9848 SEJONG NETWORKS	`2.11ms` from Seoul, KR
64.23.75.65	AS9848 SEJONG NETWORKS	`1.08ms` from Seoul, KR
203.235.27.232	AS9848 SEJONG NETWORKS	`7.33ms` from Seoul, KR
203.239.111.53	AS9848 SEJONG NETWORKS	`1.37ms` from Seoul, KR
203.231.104.174	AS9848 SEJONG NETWORKS	`0.76ms` from Seoul, KR
203.227.62.12	AS9848 SEJONG NETWORKS	`0.87ms` from Seoul, KR
211.115.195.186	AS9848 SEJONG NETWORKS	`1.22ms` from Seoul, KR
203.248.82.1	AS9848 SEJONG NETWORKS	`1.30ms` from Seoul, KR
203.235.28.17	AS9848 SEJONG NETWORKS	`6.51ms` from Seoul, KR
211.239.22.134	AS9848 SEJONG NETWORKS	`6.74ms` from Seoul, KR
203.236.145.220	AS9848 SEJONG NETWORKS	`0.75ms` from Seoul, KR
211.239.74.36	AS9848 SEJONG NETWORKS	`1.33ms` from Seoul, KR

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
77.169.229.8	AS1136 KPN B.V.	`2.48ms` from Amsterdam, NL
120.5.24.104	AS4837 CHINA UNICOM China169 Backbone	`7.29ms` from Beijing, CN
24.77.118.184	AS6327 Shaw Communications	`18.50ms` from Chicago, US
73.22.200.88	AS7922 Comcast Cable Communications, LLC	`4.88ms` from Chicago, US
77.98.45.168	AS5089 Virgin Media Limited	`10.65ms` from Dublin, IE
122.174.63.104	AS24560 Bharti Airtel Ltd., Telemedia Services	`1.91ms` from Hyderabad, IN
78.151.199.120	AS13285 TalkTalk Communications Limited	`2.20ms` from London, GB
79.151.210.88	AS3352 TELEFONICA DE ESPANA S.A.U.	`10.72ms` from Madrid, ES
186.53.133.216	AS6057 Administracion Nacional de Telecomunicaciones	`1.81ms` from Montevideo, UY
44.203.72.104	AS14618 Amazon.com, Inc.	`0.43ms` from Reston, US
211.202.35.40	AS9318 SK Broadband Co Ltd	`1.98ms` from Seoul, KR
129.79.123.152	AS87 Indiana University	`16.39ms` from Ashburn, US
222.161.182.8	AS4837 CHINA UNICOM China169 Backbone	`9.05ms` from Changchun, CN
177.75.28.248	AS263647 Irádio Comercio e Manutenção de Maquinas LTDA	`7.26ms` from Curitiba, BR
220.201.154.168	AS4837 CHINA UNICOM China169 Backbone	`9.70ms` from Liaoyang, CN
194.238.48.88	AS5503 RM Education Ltd	`4.15ms` from London, GB
54.232.218.24	AS16509 Amazon.com, Inc.	`0.15ms` from Osasco, BR
86.196.172.184	AS3215 Orange S.A.	`8.43ms` from Paris, FR
109.94.50.120	AS39886 Nomotech SAS	`5.29ms` from Paris, FR
101.189.57.136	AS1221 Telstra Limited	`8.16ms` from Perth, AU
178.74.22.104	AS2116 GLOBALCONNECT AS	`1.93ms` from Sandefjord, NO
3.34.195.56	AS16509 Amazon.com, Inc.	`0.62ms` from Seoul, KR
221.167.80.120	AS4766 Korea Telecom	`7.23ms` from Seoul, KR
220.78.2.8	AS4766 Korea Telecom	`1.82ms` from Seoul, KR
79.185.178.56	AS5617 Orange Polska Spolka Akcyjna	`13.97ms` from Warsaw, PL

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -m5 203.231.199.147

traceroute to 203.231.199.147 (203.231.199.147): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 5.031 ms

2 [AS41371] 88.151.180.149 3.176 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On December 14th 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS9848 at robtex.

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