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	19,714
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	dewsystem	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
203.227.63.0/24	SEJONG NETWORKS	256
203.227.184.0/24	MOACK	256
203.227.189.0/24	MOACK	256
203.231.97.0/24	SEJONG NETWORKS	256
203.231.242.0/24	SEJONG NETWORKS	256
203.231.243.0/24	SEJONG NETWORKS	256
203.231.245.0/24	SEJONG NETWORKS	256
203.231.253.0/24	SEJONG NETWORKS	256
203.231.254.0/24	SEJONG NETWORKS	256
203.235.40.0/24	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
210.112.117.0/24	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
211.172.106.0/24	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
211.238.18.0/24	CJCABLEHAEWONDAEKIJANG	256
211.238.22.0/24	CJCABLEHAEWONDAEKIJANG	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
211.255.240.0/24	CJcablenet	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 19,714 domain names hosted across 2,468 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
203.227.189.88	██████████	259
210.122.11.217	██████████	113
203.239.11.7	██████████	104
203.227.189.182	██████████	101
210.122.14.65	██████████	82
210.122.36.179	██████████	69
210.122.14.210	██████████	65
210.122.10.31	██████████	62
210.122.36.248	██████████	57
210.109.143.181	██████████	36

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Hosted Domains API & Database

Peers

There are 84 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
AS138997	Eons Data Communications Limited
AS139341	ACE
AS142271	EWS DS Networks Inc
AS14537	Continent 8 LLC
AS150684	JINX CO., LIMITED
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.
AS18187	Ignite Telecommunications Inc
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
AS3786	LG DACOM Corporation
AS38098	NICE Information Telecommunication, Inc
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.
AS46011	LX
AS4637	Telstra Global
AS4664	Shinbiro
AS4670	Shinbiro
AS4766	Korea Telecom
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
AS9002	RETN Limited
AS9318	SK Broadband Co Ltd
AS9493	HMC SECURITIES CO., LTD.
AS9498	BHARTI Airtel Ltd.
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 8 upstreams for this ASN.

upstreams	Name
AS150684	JINX CO., LIMITED
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 49 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
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
AS38676	flexnetworks
AS38686	Tmoney co., ltd
AS45361	Ulsan Jung-Ang Broadcasting Network
AS45374	CCS
AS45968	KONAI
AS45971	Financial Security Institute
AS45977	CANON KOREA INC.
AS46011	LX
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.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
203.239.85.62	AS9848 SEJONG NETWORKS	`2.69ms` from Incheon, KR
211.239.37.254	AS9848 SEJONG NETWORKS	`0.77ms` from Seoul, KR
203.235.16.109	AS9848 SEJONG NETWORKS	`6.45ms` from Seoul, KR
61.109.243.7	AS9848 SEJONG NETWORKS	`1.08ms` from Seoul, KR
203.238.25.66	AS9848 SEJONG NETWORKS	`1.50ms` from Seoul, KR
211.172.106.3	AS9848 SEJONG NETWORKS	`0.72ms` from Seoul, KR
211.189.174.244	AS9848 SEJONG NETWORKS	`0.51ms` from Seoul, KR
61.100.39.61	AS9848 SEJONG NETWORKS	`6.59ms` from Seoul, KR
210.109.222.10	AS9848 SEJONG NETWORKS	`0.75ms` from Seoul, KR
210.109.202.1	AS9848 SEJONG NETWORKS	`0.48ms` from Seoul, KR
210.122.39.2	AS9848 SEJONG NETWORKS	`1.03ms` from Seoul, KR
203.227.151.251	AS9848 SEJONG NETWORKS	`0.72ms` from Seoul, KR
203.235.39.66	AS9848 SEJONG NETWORKS	`1.23ms` from Seoul, KR
61.100.31.115	AS9848 SEJONG NETWORKS	`6.58ms` from Seoul, KR
203.231.23.240	AS9848 SEJONG NETWORKS	`1.52ms` from Seoul, KR
210.109.203.140	AS9848 SEJONG NETWORKS	`0.56ms` from Seoul, KR
61.111.179.4	AS9848 SEJONG NETWORKS	`0.78ms` from Seoul, KR
203.231.31.33	AS9848 SEJONG NETWORKS	`2.41ms` from Seoul, KR
203.231.182.1	AS9848 SEJONG NETWORKS	`7.00ms` from Seoul, KR
61.100.34.62	AS9848 SEJONG NETWORKS	`6.68ms` from Seoul, KR
210.122.13.46	AS9848 SEJONG NETWORKS	`1.01ms` from Seoul, KR
203.231.28.190	AS9848 SEJONG NETWORKS	`6.71ms` from Seoul, KR
211.239.84.102	AS9848 SEJONG NETWORKS	`1.20ms` from Seoul, KR
211.239.36.254	AS9848 SEJONG NETWORKS	`0.77ms` from Seoul, KR
61.250.80.46	AS9848 SEJONG NETWORKS	`0.73ms` 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
62.166.169.216	AS50266 Odido Netherlands B.V.	`5.83ms` from Amsterdam, NL
129.79.123.152	AS87 Indiana University	`5.28ms` from Chicago, US
187.133.250.168	AS8151 UNINET	`5.14ms` from Guadalajara, MX
193.4.58.168	AS1850 Internet a Islandi hf	`0.77ms` from Hafnarfjoerdur, IS
99.71.87.136	AS7018 AT&T Enterprises, LLC	`4.03ms` from Houston, US
4.226.77.136	AS8075 Microsoft Corporation	`0.38ms` from Kloten, CH
193.35.91.104	AS213005 Invermae Solutions SL	`0.44ms` from Madrid, ES
181.69.202.56	AS27831 Colombia Móvil	`16.75ms` from Medellin, CO
153.194.163.88	AS4713 NTT DOCOMO BUSINESS,Inc.	`4.10ms` from Osaka, JP
34.206.211.72	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
218.151.81.88	AS4766 Korea Telecom	`2.87ms` from Seoul, KR
59.13.164.152	AS4766 Korea Telecom	`2.24ms` from Seoul, KR
195.69.81.8	AS52142 Polcom Sp. z o.o.	`4.11ms` from Wrocław, PL
40.66.22.200	AS8075 Microsoft Corporation	`0.65ms` from Boydton, US
76.190.154.168	AS10796 Charter Communications Inc	`6.56ms` from Cleveland, US
84.128.98.8	AS3320 Deutsche Telekom AG	`8.76ms` from Frankfurt am Main, DE
175.31.99.88	AS4134 CHINANET-BACKBONE	`9.63ms` from Harbin, CN
171.61.110.56	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.00ms` from Hyderabad, IN
152.163.236.232	AS395954 Leaseweb USA, Inc.	`0.28ms` from Los Angeles, US
190.133.244.56	AS6057 Administracion Nacional de Telecomunicaciones	`1.73ms` from Montevideo, UY
188.68.104.168	AS29124 Iskratelecom JSC	`0.96ms` from Moscow, RU
153.137.67.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.41ms` from Osaka, JP
115.28.175.200	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.19ms` from Qingdao, CN
178.69.247.184	AS12389 PJSC Rostelecom	`10.62ms` from Saint Petersburg, RU
126.36.239.152	AS17676 SoftBank Corp.	`3.99ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m5 203.231.191.16

traceroute to 203.231.191.16 (203.231.191.16): 5 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 145.557 ms

2 [] 203.255.114.1 169.24 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On February 16th 2026

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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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