210.126.48.0/24

AS55586 · THE CATHOLIC UNIVERSITY OF KOREA SONGSIM

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Summary

Country	South Korea
Domain	kt.com
ASN	AS55586
Parent Range	210.126.0.0/17
Registry	KRNIC
ID	KORNET-KR

WHOIS Details

inetnum:        210.126.0.0 - 210.126.127.255
netname:        KORNET-KR
descr:          Korea Telecom
country:        KR
admin-c:        IA9-KR
tech-c:         IM9-KR
status:         ALLOCATED PORTABLE
mnt-by:         MNT-KRNIC-AP
mnt-irt:        IRT-KRNIC-KR
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC


person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IA9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

person:         IP Manager
address:        Gyeonggi-do Bundang-gu, Seongnam-si Buljeong-ro 90
address:        KT Head Office
country:        KR
phone:          +82-2-500-6630
e-mail:         kornet_ip@kt.com
nic-hdl:        IM9-KR
mnt-by:         MNT-KRNIC-AP
changed:        hostmaster@nic.or.kr 20240912
remarks:        This information has been partially mirrored by APNIC from
remarks:        KRNIC. To obtain more specific information, please use the
remarks:        KRNIC whois server at whois.kisa.or.kr.
source:         KRNIC

Overlapping Ranges

BGP prefixes that contain 210.126.48.0/24

Range	ASN	Company	Num of IPs
210.126.0.0/17	AS4766	Korea Telecom	32,768
210.126.0.0/17	AS55586	Korea Telecom	32,768
210.126.0.0/17	AS9767	Korea Telecom	32,768

Nearby Ranges

BGP prefixes that overlap with 210.126.0.0/16

Range	ASN	Company	Num of IPs
210.126.0.0/17	AS4766	Korea Telecom	32,768
210.126.0.0/17	AS55586	Korea Telecom	32,768
210.126.0.0/17	AS9767	Korea Telecom	32,768
210.126.128.0/17	AS9848	SEJONG NETWORKS	32,768
210.126.140.0/24	AS9959	Korea Stock Exchange	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
210.126.48.30	AS55586 THE CATHOLIC UNIVERSITY OF KOREA SONGSIM	`2.43ms` 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
66.189.127.136	AS20115 Charter Communications LLC	`7.04ms` from Ashburn, US
98.219.217.104	AS7922 Comcast Cable Communications, LLC	`12.66ms` from Ashburn, US
78.23.97.200	AS6848 Telenet BV	`7.31ms` from Brussels, BE
184.12.43.24	AS5650 Frontier Communications of America, Inc.	`15.48ms` from Chicago, US
24.208.236.120	AS10796 Charter Communications Inc	`9.41ms` from Columbus, US
4.245.156.88	AS8075 Microsoft Corporation	`0.18ms` from Dublin, IE
3.124.183.248	AS16509 Amazon.com, Inc.	`0.51ms` from Frankfurt am Main, DE
95.223.137.88	AS3209 Vodafone GmbH	`10.62ms` from Frankfurt am Main, DE
62.106.42.248	AS8829 ElmoNet Oy	`5.06ms` from Helsinki, FI
67.123.120.88	AS7018 AT&T Enterprises, LLC	`3.59ms` from Los Angeles, US
85.251.243.104	AS6739 VODAFONE ONO, S.A.	`5.12ms` from Madrid, ES
87.13.99.104	AS3269 Telecom Italia S.p.A.	`1.28ms` from Milan, IT
82.62.1.8	AS3269 Telecom Italia S.p.A.	`4.23ms` from Milan, IT
73.35.57.88	AS7922 Comcast Cable Communications, LLC	`8.16ms` from Orlando, US
179.208.164.72	AS28573 Claro NXT Telecomunicacoes Ltda	`5.83ms` from Osasco, BR
189.167.26.216	AS8151 UNINET	`8.26ms` from Santiago de Queretaro, MX
1.246.141.40	AS9318 SK Broadband Co Ltd	`3.15ms` from Seoul, KR
89.138.74.72	AS1680 Cellcom Fixed Line Communication L.P	`2.33ms` from Tel Aviv, IL
78.63.92.40	AS8764 Telia Lietuva, AB	`1.03ms` from Vilnius, LT
108.56.140.24	AS701 Verizon Business	`2.09ms` from Ashburn, US
88.132.75.248	AS35311 PR-TELECOM ZRt.	`1.25ms` from Budapest, HU
184.92.149.8	AS11427 Charter Communications Inc	`6.89ms` from Dallas, US
54.75.79.120	AS16509 Amazon.com, Inc.	`0.49ms` from Dublin, IE
104.14.184.136	AS7018 AT&T Enterprises, LLC	`3.29ms` from Houston, US
80.131.127.200	AS3320 Deutsche Telekom AG	`4.76ms` from Nuernberg, DE

Traceroute

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

traceroute -a -n -q1 -f5 210.126.48.251

traceroute to 210.126.48.251 (210.126.48.251): 64 hops max, 52 byte packets

5 [AS9318] 39.124.192.137 1.98 ms

6 *

7 *

8 *

9 *

10 [AS55586] 210.126.48.251 3.019 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 28th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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