210.191.128.0/19

AS17957 · SOUTH TOKYO CABLETELEVISION

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Summary

Country	Japan
Domain
ASN	AS17957
Registry	JPNIC
ID	CTS

WHOIS Details

inetnum:        210.191.144.0 - 210.191.159.255
netname:        CTS
descr:          SOUTH TOKYO CABLETELEVISION
country:        JP
admin-c:        YM7875JP
tech-c:         JY2280JP
tech-c:         KM12859JP
tech-c:         MN5333JP
tech-c:         TK11316JP
tech-c:         YO4329JP
last-modified:  2021-12-03T19:20:02Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 210.191.0.0/16

Range	ASN	Company	Num of IPs
210.191.0.0/18	AS2516	KDDI CORPORATION	16,384
210.191.64.0/18	AS7679	QTnet,Inc.	16,384
210.191.160.0/19	AS2516	KDDI CORPORATION	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

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

IP Address	ASN	Details
210.191.150.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.81ms` from Tokyo, JP
210.191.136.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.92ms` from Tokyo, JP
210.191.144.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.76ms` from Tokyo, JP
210.191.148.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.88ms` from Tokyo, JP
210.191.132.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.73ms` from Tokyo, JP
210.191.158.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.59ms` from Tokyo, JP
210.191.159.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.28ms` from Tokyo, JP
210.191.152.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.97ms` from Tokyo, JP
210.191.156.1	AS17957 SOUTH TOKYO CABLETELEVISION	`1.82ms` from Tokyo, JP

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
185.50.210.3	AS34612 Matrix DATA B.V.	`2.48ms` from Amsterdam, NL
184.73.92.99	AS14618 Amazon.com, Inc.	`0.57ms` from Ashburn, US
165.49.209.115	AS998 HypeStatus Inc	`0.26ms` from Ashburn, US
54.191.150.83	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
67.162.176.163	AS7922 Comcast Cable Communications, LLC	`13.88ms` from Chicago, US
84.152.148.19	AS3320 Deutsche Telekom AG	`3.39ms` from Duesseldorf, DE
89.58.203.243	AS57353 vitroconnect GmbH	`6.77ms` from Duesseldorf, DE
193.124.142.19	AS41110 DSLmobil GmbH	`5.17ms` from Frankfurt am Main, DE
185.131.99.3	AS49474 Elm Company PJS	`11.88ms` from Jeddah, SA
109.235.109.115	AS15433 Telecom Italia San Marino S.p.A	`7.38ms` from Milan, IT
46.41.64.227	AS12389 PJSC Rostelecom	`16.94ms` from Moscow, RU
75.99.63.131	AS6128 Cablevision Systems Corp.	`4.35ms` from New York City, US
104.220.223.51	AS11404 Wave Broadband	`6.42ms` from San Jose, US
98.51.140.179	AS7922 Comcast Cable Communications, LLC	`5.91ms` from San Jose, US
204.145.81.3	AS29838 Atlantic Metro Communications II, Inc.	`0.69ms` from Secaucus, US
61.75.117.195	AS4766 Korea Telecom	`6.34ms` from Seoul, KR
210.29.37.147	AS4538 China Education and Research Network Center	`6.97ms` from Shanghai, CN
57.180.30.51	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
54.168.178.243	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
3.84.190.211	AS14618 Amazon.com, Inc.	`0.46ms` from Ashburn, US
182.73.226.227	AS9498 BHARTI Airtel Ltd.	`1.19ms` from Chennai, IN
98.222.75.163	AS7922 Comcast Cable Communications, LLC	`4.25ms` from Chicago, US
58.144.155.131	AS4837 CHINA UNICOM China169 Backbone	`0.57ms` from Chongqing, CN
34.244.75.195	AS16509 Amazon.com, Inc.	`0.27ms` from Dublin, IE
87.139.71.51	AS3320 Deutsche Telekom AG	`4.91ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -m6 210.191.128.242

traceroute to 210.191.128.242 (210.191.128.242): 6 hops max, 52 byte packets

1 [AS9808] 117.156.119.33 0.085 ms

2 [AS9808] 111.11.136.121 8.973 ms

3 [AS9808] 117.156.127.1 1.19 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Wuwei, CN

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.

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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