121.55.96.0/21

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	121.55.96.0-121.55.96.255

WHOIS Details

inetnum:            121.55.96.0 - 121.55.96.255
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 121.55.96.0/21

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

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

IP Address	ASN	Details
121.55.100.0	AS9781 GREEN CABLE TELEVISION STATION	`6.13ms` from Seoul, KR
121.55.103.1	AS9781 GREEN CABLE TELEVISION STATION	`5.54ms` from Seoul, KR
121.55.98.1	AS9781 GREEN CABLE TELEVISION STATION	`5.97ms` from Seoul, KR
121.55.99.1	AS9781 GREEN CABLE TELEVISION STATION	`5.97ms` from Seoul, KR
121.55.102.1	AS9781 GREEN CABLE TELEVISION STATION	`5.94ms` from Seoul, KR
121.55.97.0	AS9781 GREEN CABLE TELEVISION STATION	`5.52ms` from Seoul, KR
121.55.96.1	AS9781 GREEN CABLE TELEVISION STATION	`5.79ms` from Seoul, KR
121.55.101.0	AS9781 GREEN CABLE TELEVISION STATION	`5.94ms` 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
23.101.66.213	AS8075 Microsoft Corporation	`0.18ms` from Amsterdam, NL
52.234.162.85	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
12.17.5.229	AS7018 AT&T Enterprises, LLC	`7.88ms` from Atlanta, US
201.185.147.5	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`7.32ms` from Bogota, CO
186.132.75.85	AS22927 Telefonica de Argentina	`2.06ms` from Buenos Aires, AR
34.71.132.21	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
103.244.227.69	AS42831 UK Dedicated Servers Limited	`0.23ms` from Coventry, GB
99.57.47.245	AS7018 AT&T Enterprises, LLC	`1.31ms` from Dallas, US
88.238.76.181	AS9121 Turk Telekomunikasyon Anonim Sirketi	`2.63ms` from Istanbul, TR
221.3.198.181	AS4837 CHINA UNICOM China169 Backbone	`5.16ms` from Kunming, CN
31.104.88.245	AS2856 British Telecommunications PLC	`1.89ms` from London, GB
217.72.147.117	AS29388 Best Telecom ISP	`0.96ms` from Moscow, RU
12.193.28.5	AS17253 TEC of Jackson, Inc.	`6.22ms` from New Orleans, US
189.78.25.181	AS27699 TELEFÔNICA BRASIL S.A	`4.37ms` from Osasco, BR
86.201.191.5	AS3215 Orange S.A.	`14.15ms` from Paris, FR
208.198.20.37	AS701 Verizon Business	`0.45ms` from Philadelphia, US
46.99.164.229	AS21246 IPKO Telecommunications LLC	`16.85ms` from Pristina, XK
195.1.193.149	AS2116 GLOBALCONNECT AS	`1.74ms` from Sandefjord, NO
50.29.237.197	AS3737 PenTeleData Inc.	`11.08ms` from Secaucus, US
218.37.16.197	AS17864 SK Broadband Co Ltd	`2.21ms` from Seoul, KR
88.220.36.69	AS20804 Exatel S.A.	`0.68ms` from Warsaw, PL
77.13.57.21	AS6805 Telefonica Germany GmbH & Co.OHG	`4.96ms` from Berlin, DE
24.61.44.69	AS7922 Comcast Cable Communications, LLC	`5.83ms` from Boston, US
84.193.225.21	AS6848 Telenet BV	`5.88ms` from Brussels, BE
75.217.194.37	AS6167 Verizon Business	`17.25ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f5 121.55.97.2

traceroute to 121.55.97.2 (121.55.97.2): 64 hops max, 52 byte packets

5 [AS4637] 210.176.150.116 1.168 ms

6 *

7 *

8 *

9 *

10 [AS9318] 116.120.104.82 6.428 ms

11 [AS9781] 121.55.64.67 7.13 ms

12 [AS9781] 121.55.97.2 14.15 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.

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