219.121.128.0/20

AS59108 · KATCH NETWORK INC.

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Summary

Country	Japan
Domain	katch.co.jp
ASN	AS59108
Parent Range	219.121.128.0/19
Registry	JPNIC
ID	KATCH-NET

WHOIS Details

inetnum:        219.121.128.0 - 219.121.143.255
netname:        KATCH-NET
descr:          KATCH Network Inc.
country:        JP
admin-c:        JP00020836
tech-c:         JP00020836
last-modified:  2025-08-07T03:23:03Z
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

Overlapping Ranges

BGP prefixes that contain 219.121.128.0/20

Range	ASN	Company	Num of IPs
219.121.128.0/19	AS59108	KATCH Network Inc.	8,192

Nearby Ranges

BGP prefixes that overlap with 219.121.0.0/16

Range	ASN	Company	Num of IPs
219.121.0.0/18	AS4685	Asahi Net	16,384
219.121.64.0/18	AS9595	NTT-ME Corporation	16,384
219.121.224.0/19	AS2519	incl (ISHIKAWA COMPUTER CENTER, Ltd.)	8,192
219.121.224.0/19	AS18121	incl (ISHIKAWA COMPUTER CENTER, Ltd.)	8,192
219.121.128.0/19	AS59108	KATCH Network Inc.	8,192
219.121.160.0/19	AS2497	Internet Initiative Japan Inc.	8,192
219.121.208.0/20	AS7676	TAM Co.,LTD	4,096
219.121.192.0/20	AS9374	EDION Corporation	4,096

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
219.121.139.3	AS59108 KATCH NETWORK INC.	`3.65ms` from Osaka, JP
219.121.129.16	AS59108 KATCH NETWORK INC.	`3.71ms` from Osaka, JP
219.121.135.3	AS59108 KATCH NETWORK INC.	`3.48ms` from Osaka, JP
219.121.138.2	AS59108 KATCH NETWORK INC.	`3.51ms` from Osaka, JP
219.121.136.2	AS59108 KATCH NETWORK INC.	`3.53ms` from Osaka, JP
219.121.131.2	AS59108 KATCH NETWORK INC.	`3.50ms` from Osaka, JP
219.121.143.2	AS59108 KATCH NETWORK INC.	`3.70ms` from Osaka, JP
219.121.142.1	AS59108 KATCH NETWORK INC.	`3.64ms` from Osaka, JP
219.121.137.1	AS59108 KATCH NETWORK INC.	`3.70ms` from Osaka, JP
219.121.132.1	AS59108 KATCH NETWORK INC.	`3.71ms` from Osaka, JP
219.121.128.1	AS59108 KATCH NETWORK INC.	`3.60ms` from Osaka, JP
219.121.140.2	AS59108 KATCH NETWORK INC.	`3.69ms` from Osaka, JP
219.121.133.1	AS59108 KATCH NETWORK INC.	`3.51ms` from Osaka, JP
219.121.130.2	AS59108 KATCH NETWORK INC.	`3.78ms` from Osaka, JP
219.121.134.2	AS59108 KATCH NETWORK INC.	`3.56ms` from Osaka, 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
96.72.84.116	AS7922 Comcast Cable Communications, LLC	`5.94ms` from Chicago, US
35.239.67.132	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
217.235.23.228	AS3320 Deutsche Telekom AG	`10.25ms` from Frankfurt am Main, DE
194.144.179.36	AS12969 Vodafone Iceland	`1.09ms` from Hafnarfjoerdur, IS
98.167.83.20	AS22773 Cox Communications Inc.	`9.55ms` from Los Angeles, US
73.41.35.244	AS7922 Comcast Cable Communications, LLC	`10.95ms` from Los Angeles, US
81.28.247.212	AS51538 Lavrentyev Alkesandr Arkadievich	`1.52ms` from Moscow, RU
212.28.188.20	AS40021 Contabo Inc.	`0.14ms` from St. Louis, US
106.39.242.196	AS23724 IDC, China Telecommunications Corporation	`3.31ms` from Tianjin, CN
210.146.231.196	AS2519 ARTERIA Networks Corporation	`4.29ms` from Tokyo, JP
210.225.85.228	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.69ms` from Tokyo, JP
104.25.55.4	AS13335 Cloudflare, Inc.	`0.11ms` from Wrocław, PL
172.201.35.100	AS8075 Microsoft Corporation	`0.30ms` from Amsterdam, NL
73.190.251.84	AS7922 Comcast Cable Communications, LLC	`12.75ms` from Atlanta, US
158.109.153.228	AS13041 Consorci de Serveis Universitaris de Catalunya	`1.16ms` from Barcelona, ES
73.14.151.20	AS7922 Comcast Cable Communications, LLC	`1.89ms` from Denver, US
84.175.109.100	AS3320 Deutsche Telekom AG	`9.29ms` from Frankfurt am Main, DE
196.3.164.20	AS11845 Vox Telecom Ltd	`0.61ms` from Johannesburg, ZA
52.60.177.244	AS16509 Amazon.com, Inc.	`0.11ms` from Montreal, CA
71.104.97.36	AS701 Verizon Business	`1.69ms` from New York City, US
222.231.86.164	AS18144 Enecom,Inc.	`7.56ms` from Osaka, JP
115.138.152.228	AS17858 LG POWERCOMM	`1.80ms` from Seoul, KR
58.41.29.20	AS4812 China Telecom (Group)	`3.98ms` from Shanghai, CN
13.49.147.244	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
119.15.200.4	AS38851 TNET-NET	`0.98ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f5 219.121.133.1

traceroute to 219.121.133.1 (219.121.133.1): 64 hops max, 52 byte packets

5 [] 210.173.184.134 8.123 ms

6 [AS9354] 210.158.147.105 3.42 ms

7 [AS59108] 219.121.133.1 3.562 ms

Measurement taken from

IPinfo ProbeNet in Osaka, JP

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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