121.55.112.0/21

AS9781 · GREEN CABLE TELEVISION STATION

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Summary

Country	South Korea
Domain	gcs.co.kr
ASN	AS9781
Parent Range	121.55.64.0/18
Registry	KRNIC
ID	121.55.112.0-121.55.112.255

WHOIS Details

inetnum:            121.55.112.0 - 121.55.112.255
descr:              GREEN CABLE TELEVISION STATION
network-type:       INFRA
address:            Daegu Dalseo-gu Dalgubeol-daero 1611
zip-code:           42640
created:            2006-10-02
admin:              GENERATED-KRNIC-IP-MANAGER-YS0964
country:            KR
source:             KRNIC

nic-hdl:            GENERATED-KRNIC-IP-MANAGER-YS0964
person:             IP Manager
name:               IP Manager
phone:              +82-53-551-2009
e-mail:             [email protected]
source:             KRNIC

Overlapping Ranges

BGP prefixes that contain 121.55.112.0/21

Range	ASN	Company	Num of IPs
121.55.64.0/18	AS9781	GREEN CABLE TELEVISION STATION	16,384

Nearby Ranges

BGP prefixes that overlap with 121.55.0.0/16

Range	ASN	Company	Num of IPs
121.55.192.0/18	AS3605	Kuentos Communications	16,384
121.55.0.0/18	AS45061	Shanghai Information Network Co.,Ltd.	16,384
121.55.128.0/18	AS9781	GREEN CABLE TELEVISION STATION	16,384
121.55.64.0/18	AS9781	GREEN CABLE TELEVISION STATION	16,384
121.55.192.0/19	AS3605	Kuentos Communications, Inc.	8,192
121.55.224.0/19	AS3605	Kuentos Communications, Inc.	8,192

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

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

IP Address	ASN	Details
121.55.114.1	AS9781 GREEN CABLE TELEVISION STATION	`5.74ms` from Seoul, KR
121.55.118.39	AS9781 GREEN CABLE TELEVISION STATION	`5.93ms` from Seoul, KR
121.55.116.0	AS9781 GREEN CABLE TELEVISION STATION	`5.87ms` from Seoul, KR
121.55.112.0	AS9781 GREEN CABLE TELEVISION STATION	`5.63ms` from Seoul, KR
121.55.119.21	AS9781 GREEN CABLE TELEVISION STATION	`5.93ms` from Seoul, KR
121.55.113.255	AS9781 GREEN CABLE TELEVISION STATION	`5.59ms` from Seoul, KR
121.55.117.55	AS9781 GREEN CABLE TELEVISION STATION	`6.04ms` from Seoul, KR
121.55.115.255	AS9781 GREEN CABLE TELEVISION STATION	`5.68ms` 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
94.182.197.21	AS31549 Aria Shatel PJSC	`14.82ms` from Baku, AZ
140.143.134.117	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.78ms` from Beijing, CN
186.119.177.37	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`17.51ms` from Bogota, CO
120.151.56.117	AS1221 Telstra Limited	`5.72ms` from Brisbane, AU
27.7.205.245	AS17488 Hathway IP Over Cable Internet	`1.31ms` from Delhi, IN
60.254.106.69	AS17488 Hathway IP Over Cable Internet	`1.47ms` from Delhi, IN
96.66.71.21	AS7922 Comcast Cable Communications, LLC	`6.23ms` from Denver, US
94.6.18.181	AS5607 Sky UK Limited	`6.08ms` from Erith, GB
92.71.36.165	AS9009 M247 Europe SRL	`0.15ms` from Frankfurt am Main, DE
185.110.48.101	AS47544 IQ PL Sp. z o.o.	`0.52ms` from Gdansk, PL
120.240.6.213	AS56040 China Mobile communications corporation	`4.70ms` from Guangzhou, CN
168.210.5.181	AS20011 Dimension Data	`0.12ms` from Johannesburg, ZA
102.207.16.229	AS328366 FIRSTNET TECHNOLOGY SERVICES (PTY) LTD	`1.66ms` from Johannesburg, ZA
34.35.67.53	AS396982 Google LLC	`0.19ms` from Johannesburg, ZA
78.151.68.117	AS13285 TalkTalk Communications Limited	`3.20ms` from Manchester, GB
58.216.203.37	AS4134 CHINANET-BACKBONE	`3.54ms` from Nanjing, CN
104.248.50.117	AS14061 DigitalOcean, LLC	`0.27ms` from New York City, US
52.46.64.37	AS16509 Amazon.com, Inc.	`0.07ms` from Paris, FR
31.36.12.245	AS5410 Bouygues Telecom SA	`9.81ms` from Paris, FR
39.108.222.165	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.48ms` from Shenzhen, CN
41.231.84.133	AS37705 TOPNET	`0.89ms` from Tunis, TN
86.86.37.165	AS1136 KPN B.V.	`1.19ms` from Amsterdam, NL
47.50.79.133	AS20115 Charter Communications LLC	`8.97ms` from Chicago, US
97.70.190.197	AS33363 Charter Communications, Inc	`12.89ms` from Chicago, US
45.187.142.5	AS269467 P4NET Telecom	`7.92ms` from Curitiba, BR

Traceroute

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

traceroute -a -n -q1 -f5 121.55.117.135

traceroute to 121.55.117.135 (121.55.117.135): 64 hops max, 52 byte packets

5 [AS9848] 203.231.94.198 5.884 ms

6 [AS9781] 121.55.64.250 6.12 ms

7 *

8 [AS9781] 121.55.117.135 6.683 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On December 14th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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