203.251.77.0/24

AS38124 · iM DS Co.,Ltd.

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Summary

Country	South Korea
Domain	kt.com
ASN	AS38124
Parent Range	203.251.0.0/17
Registry	KRNIC
ID	203.251.77.0-203.251.77.255

WHOIS Details

inetnum:            203.251.77.0 - 203.251.77.255
descr:              Korea Telecom
network-type:       CUSTOMER
address:            Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
zip-code:           13606
created:            2019-11-26
admin:              GENERATED-KRNIC-IP-MANAGER-KORNETIP
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-KORNETIP
person:             IP Manager
name:               IP Manager
phone:              +82-2-500-6630
e-mail:             kornet_ip@kt.com
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 203.251.77.0/24

Range	ASN	Company	Num of IPs
203.251.0.0/17	AS4766	Korea Telecom	32,768

Nearby Ranges

BGP prefixes that overlap with 203.251.0.0/16

Range	ASN	Company	Num of IPs
203.251.0.0/17	AS4766	Korea Telecom	32,768
203.251.192.0/18	AS4670	SEJONG NETWORKS	16,384
203.251.128.0/18	AS4766	Korea Telecom	16,384
203.251.192.0/18	AS4664	SEJONG NETWORKS	16,384
203.251.192.0/18	AS9848	SEJONG NETWORKS	16,384
203.251.205.0/24	AS4670	SEJONG NETWORKS	256
203.251.112.0/24	AS4766	Busanjangsindaehakgyo	256
203.251.135.0/24	AS4766	Korea Telecom	256
203.251.136.0/24	AS4766	Korea Telecom	256
203.251.137.0/24	AS4766	Korea Telecom	256
203.251.7.0/24	AS4766	Hangukcheoldosiseolgongdan	256
203.251.207.0/24	AS7562	Hyundai Department	256
203.251.237.0/24	AS7562	Hyundai Department	256
203.251.246.0/24	AS9848	SEJONG NETWORKS	256
203.251.249.0/24	AS9848	SEJONG NETWORKS	256
203.251.250.0/24	AS9848	SEJONG NETWORKS	256
203.251.210.0/24	AS9980	Hyundai Information Technology Co. Ltd.	256
203.251.251.0/24	AS9980	Hyundai Information Technology Co. Ltd.	256
203.251.152.0/24	AS45399	Hanjinjeongbotongsin(ju)	256
203.251.154.0/24	AS45399	Hanjinjeongbotongsin(ju)	256
203.251.201.0/24	AS4670	SEJONG NETWORKS	256
203.251.202.0/24	AS4670	SEJONG NETWORKS	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.251.77.9	AS38124 iM DS Co.,Ltd.	`4.60ms` 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
34.89.62.200	AS396982 Google LLC	`0.10ms` from London, GB
104.89.120.232	AS16625 Akamai Technologies, Inc.	`0.30ms` from Singapore, SG
200.198.214.8	AS10954 SERVICO FEDERAL DE PROCESSAMENTO DE DADOS - SERPRO	`0.47ms` from Brasilia, BR
94.53.204.184	AS48161 NEXTGEN COMMUNICATIONS SRL	`8.24ms` from Bucharest, RO
3.139.245.248	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
78.185.66.216	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.19ms` from Istanbul, TR
18.130.95.232	AS16509 Amazon.com, Inc.	`0.12ms` from London, GB
114.222.9.200	AS4134 CHINANET-BACKBONE	`2.16ms` from Nanjing, CN
76.115.230.184	AS7922 Comcast Cable Communications, LLC	`5.34ms` from Portland, US
189.137.163.136	AS8151 UNINET	`3.73ms` from Santiago de Queretaro, MX
60.244.235.216	AS7482 Asia Pacific On-line Service Inc.	`4.85ms` from Taipei, TW
34.187.131.8	AS396982 Google LLC	`0.17ms` from The Dalles, US
47.89.165.24	AS45102 Alibaba (US) Technology Co., Ltd.	`0.26ms` from Ashburn, US
186.170.120.104	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`18.40ms` from Bogota, CO
41.37.91.136	AS8452 TE-AS	`5.24ms` from Cairo, EG
95.121.34.40	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.53ms` from Madrid, ES
119.10.234.152	AS2497 Internet Initiative Japan Inc.	`5.32ms` from Osaka, JP
133.247.105.120	AS59093 IMABARI CATV CORPORATION	`6.70ms` from Osaka, JP
185.5.162.8	AS20764 CJSC RASCOM	`0.34ms` from Saint Petersburg, RU
114.46.65.200	AS3462 Data Communication Business Group	`1.71ms` from Taichung, TW
59.142.86.248	AS2516 KDDI CORPORATION	`3.41ms` from Tokyo, JP
133.175.21.216	AS2519 ARTERIA Networks Corporation	`2.52ms` from Tokyo, JP
34.200.45.56	AS14618 Amazon.com, Inc.	`0.66ms` from Ashburn, US
104.169.148.184	AS5650 Frontier Communications of America, Inc.	`11.31ms` from Ashburn, US
69.220.149.152	AS7018 AT&T Enterprises, LLC	`16.05ms` from Atlanta, US

Traceroute

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

traceroute -a -n -q1 203.251.77.2

traceroute to 203.251.77.2 (203.251.77.2): 64 hops max, 52 byte packets

1 [AS31898] 140.91.214.61 0.064 ms

2 *

3 *

4 *

5 [AS4766] 112.174.116.66 6.532 ms

6 *

7 *

8 [AS38124] 203.251.77.2 4.936 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 28th 2025

What are IP address ranges?

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