1.21.96.0/20

AS59125 · FAMILY NET JAPAN INCORPORATED

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Summary

Country	Japan
Domain
ASN	AS59125
Registry	JPNIC
ID	CYBERHOME

WHOIS Details

inetnum:        1.21.96.0 - 1.21.111.255
netname:        CYBERHOME
descr:          FAMILYNET JAPAN CORPORATION
country:        JP
admin-c:        AN1734JP
tech-c:         AN1734JP
tech-c:         MS57835JP
last-modified:  2025-02-18T00:41:04Z
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 1.21.0.0/16

Range	ASN	Company	Num of IPs
1.21.112.0/20	AS2519	ARTERIA Networks Corporation	4,096
1.21.128.0/20	AS59125	FAMILYNET JAPAN CORPORATION	4,096

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

3,373 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
1.21.107.173	AS59125 FAMILY NET JAPAN INCORPORATED	`1.88ms` from Tokyo, JP
1.21.105.98	AS59125 FAMILY NET JAPAN INCORPORATED	`1.72ms` from Tokyo, JP
1.21.100.247	AS59125 FAMILY NET JAPAN INCORPORATED	`1.98ms` from Tokyo, JP
1.21.106.79	AS59125 FAMILY NET JAPAN INCORPORATED	`1.80ms` from Tokyo, JP
1.21.109.76	AS59125 FAMILY NET JAPAN INCORPORATED	`1.82ms` from Tokyo, JP
1.21.99.122	AS59125 FAMILY NET JAPAN INCORPORATED	`2.19ms` from Tokyo, JP
1.21.104.215	AS59125 FAMILY NET JAPAN INCORPORATED	`1.84ms` from Tokyo, JP
1.21.97.131	AS59125 FAMILY NET JAPAN INCORPORATED	`2.31ms` from Tokyo, JP
1.21.96.1	AS59125 FAMILY NET JAPAN INCORPORATED	`2.10ms` from Tokyo, JP
1.21.101.3	AS59125 FAMILY NET JAPAN INCORPORATED	`1.82ms` from Tokyo, JP
1.21.103.120	AS59125 FAMILY NET JAPAN INCORPORATED	`1.77ms` from Tokyo, JP
1.21.102.60	AS59125 FAMILY NET JAPAN INCORPORATED	`1.78ms` from Tokyo, JP
1.21.98.218	AS59125 FAMILY NET JAPAN INCORPORATED	`2.31ms` from Tokyo, JP
1.21.108.255	AS59125 FAMILY NET JAPAN INCORPORATED	`1.76ms` 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
141.14.129.84	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.11ms` from Berlin, DE
103.114.209.212	AS135139 Skylink Fibernet Private Limited	`8.32ms` from Chennai, IN
140.254.240.244	AS159 Ohio State University	`1.55ms` from Columbus, US
65.36.38.4	AS7459 Grande Communications Networks, LLC	`6.18ms` from Dallas, US
80.133.17.148	AS3320 Deutsche Telekom AG	`6.89ms` from Frankfurt am Main, DE
41.139.166.212	AS37061 Safaricom Limited	`7.16ms` from Nairobi, KE
210.152.200.36	AS4694 IDC Frontier Inc.	`6.95ms` from Osaka, JP
83.198.89.228	AS3215 Orange S.A.	`4.51ms` from Saint-Denis, RE
12.19.180.212	AS7018 AT&T Enterprises, LLC	`6.46ms` from San Antonio, US
146.3.30.244	AS6186 Garcia Consulting, Inc.	`0.07ms` from Ashburn, US
117.200.103.228	AS9829 National Internet Backbone	`10.37ms` from Bengaluru, IN
86.107.59.36	AS48955 Internet Resources Management SRL	`0.65ms` from Bucharest, RO
24.13.206.180	AS7922 Comcast Cable Communications, LLC	`7.07ms` from Chicago, US
168.210.207.228	AS20011 Dimension Data	`1.32ms` from Durban, ZA
90.53.137.148	AS3215 Orange S.A.	`9.48ms` from Frankfurt am Main, DE
91.39.216.212	AS3320 Deutsche Telekom AG	`4.80ms` from Frankfurt am Main, DE
73.99.247.4	AS7922 Comcast Cable Communications, LLC	`10.73ms` from Herndon, US
210.79.216.68	AS17910 PT. Tigatra Infokom	`1.49ms` from Jakarta, ID
80.3.55.100	AS5089 Virgin Media Limited	`8.04ms` from London, GB
206.117.54.36	AS85 The Aerospace Corporation	`1.48ms` from Los Angeles, US
195.218.16.4	AS8632 Luxembourg Online S.A.	`0.71ms` from Luxembourg, LU
187.227.203.36	AS8151 UNINET	`10.08ms` from Mexico City, MX
216.17.59.196	AS10242 US Internet Corp	`0.45ms` from Minneapolis, US
4.236.127.196	AS8075 Microsoft Corporation	`0.17ms` from Phoenix, US
166.137.163.52	AS20057 AT&T Enterprises, LLC	`2.64ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -f3 1.21.101.197

traceroute to 1.21.101.197 (1.21.101.197): 64 hops max, 52 byte packets

3 [] 101.203.88.176 2.062 ms

4 [AS59125] 160.237.95.3 13.866 ms

5 [AS59125] 160.237.95.13 0.821 ms

6 [AS59125] 1.21.101.197 2.8 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, 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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