1. All IP Ranges
  2. 121.0.0.0/8
  3. 121.50.0.0/16
  4. AS151374  | 121.50.48.0/21

121.50.48.0/21

AS151374  ·  IX-layers, Inc.

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Summary

Country Japan
Domain foresightwave.net
ASN AS151374
Registry APNIC
ID FSWNETWORKS

WHOIS Details

inetnum:        121.50.48.0 - 121.50.55.255
netname:        FSWnetworks
descr:          Foresightwave INC.
descr:          Internet Service Provider
descr:          CDN Service Provider
descr:          Japan
country:        JP
org:            ORG-FI8-AP
admin-c:        MT346-AP
tech-c:         MT346-AP
abuse-c:        AF487-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
remarks:        To report illegal use of P2P,please contact IWK-WORKS Inc,
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JP-FSW
mnt-routes:     MAINT-JP-FSW
mnt-irt:        IRT-FSW-JP
last-modified:  2024-11-07T07:28:12Z
source:         APNIC

irt:            IRT-FSW-JP
address:        2F Fukada Bldg
address:        1-13-4 Ogaya
address:        Otsu-City
address:        Shiga
e-mail:         tsujii@foresightwave.net
abuse-mailbox:  tsujii@foresightwave.net
admin-c:        MT346-AP
tech-c:         MT346-AP
auth:           # Filtered
remarks:        tsujii@foresightwave.net was validated on 2025-08-26
mnt-by:         MAINT-JP-FSW
last-modified:  2025-09-04T05:24:28Z
source:         APNIC

organisation:   ORG-FI8-AP
org-name:       Foresightwave INC.
org-type:       LIR
country:        JP
address:        2F Fukada Bldg.
address:        1-13-4 Ogaya
phone:          +81-77-536-5057
fax-no:         +81-77-536-5058
e-mail:         tsujii@foresightwave.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:05Z
source:         APNIC

role:           ABUSE FSWJP
country:        ZZ
address:        2F Fukada Bldg
address:        1-13-4 Ogaya
address:        Otsu-City
address:        Shiga
phone:          +000000000
e-mail:         tsujii@foresightwave.net
admin-c:        MT346-AP
tech-c:         MT346-AP
nic-hdl:        AF487-AP
remarks:        Generated from irt object IRT-FSW-JP
remarks:        tsujii@foresightwave.net was validated on 2025-08-26
abuse-mailbox:  tsujii@foresightwave.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-26T13:25:57Z
source:         APNIC

person:         Michiko Tsujii
nic-hdl:        MT346-AP
e-mail:         tsujii@foresightwave.net
address:        703 The 11th Maida Building
address:        9-12 Horoshiba-cho
address:        Suita-City
address:        Osaka
address:        Japan
phone:          +81-6-6190-3222
fax-no:         +81-6-6190-3232
country:        JP
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:29:24Z
source:         APNIC

route:          121.50.55.0/24
origin:         AS151374
descr:          Foresightwave INC. 2F Fukada Bldg. 1-13-4 Ogaya
mnt-by:         MAINT-JP-FSW
last-modified:  2023-12-10T05:31:48Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 121.50.0.0/16

Range ASN Company Num of IPs
121.50.224.0/19 AS17857 SK Broadband Co Ltd 8,192
121.50.176.0/20 AS18046 Chuan Chan Co. Ltd. 4,096
121.50.16.0/20 AS4668 LG CNS 4,096
121.50.192.0/20 AS9313 Network Technology (AUST) P/L 4,096
121.50.208.0/21 AS9313 Network Technology (AUST) P/L 2,048
121.50.40.0/21 AS63997 Tsukaeru.net, Web Hosting Company, Japan 2,048
121.50.160.0/21 AS2497 Hikari Cable TV Co., Ltd 2,048
121.50.152.0/21 AS10013 FreeBit Co., Ltd. 2,048
121.50.216.0/24 AS132337 Axclusive 256
121.50.217.0/24 AS132337 Axclusive 256
121.50.218.0/24 AS132337 Axclusive 256
121.50.219.0/24 AS132337 Axclusive 256
121.50.220.0/24 AS132337 Axclusive 256
121.50.221.0/24 AS132337 Axclusive 256
121.50.222.0/24 AS132337 Axclusive 256
121.50.223.0/24 AS132337 Axclusive 256
121.50.3.0/24 AS24109 WNS Global Services 256
121.50.32.0/24 AS56237 Universitas Lampung 256
121.50.33.0/24 AS38750 PT Telemedia Dinamika Sarana 256
121.50.34.0/24 AS38750 PT Telemedia Dinamika Sarana 256
121.50.35.0/24 AS38750 PT Telemedia Dinamika Sarana 256
121.50.36.0/24 AS38750 PT Telemedia Dinamika Sarana 256
121.50.39.0/24 AS38750 PT Telemedia Dinamika Sarana 256
121.50.4.0/24 AS24109 WNS BANGLORE OFFICE 256
121.50.5.0/24 AS24109 WNS Chennai OFFICE 256
121.50.57.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.58.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.59.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.60.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.6.0/24 AS24109 WNS Philippines Office Network 256
121.50.61.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.62.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.63.0/24 AS10006 SECOM Trust Systems CO.,LTD. 256
121.50.0.0/24 AS24109 WNS NASHIK OFFICE 256
121.50.7.0/24 AS24109 WNS CHENNAI SEZ OFFICE 256
121.50.1.0/24 AS24109 WNS NASHIK OFFICE 256
121.50.176.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.177.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.179.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.181.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.183.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.190.0/24 AS18046 Chuan Chan Co. Ltd. 256
121.50.191.0/24 AS18046 Chuan Chan Co. Ltd. 256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
121.50.55.40 ilohas.xyz 1

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

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

IP Address ASN Details
121.50.53.21 AS151374 IX-layers, Inc. 7.41ms from Osaka, JP
121.50.52.18 AS151374 IX-layers, Inc. 7.57ms from Osaka, JP
121.50.51.167 AS151374 IX-layers, Inc. 7.21ms from Osaka, JP
121.50.54.97 AS151374 IX-layers, Inc. 7.98ms from Osaka, JP
121.50.49.222 AS151374 IX-layers, Inc. 7.52ms from Osaka, JP
121.50.50.48 AS151374 IX-layers, Inc. 7.40ms from Osaka, JP
121.50.55.244 AS151374 IX-layers, Inc. 6.63ms from Osaka, JP
121.50.48.241 AS151374 IX-layers, Inc. 7.30ms 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
82.200.208.85 AS9198 JSC Kazakhtelecom 6.55ms from Astana, KZ
73.234.0.53 AS7922 Comcast Cable Communications, LLC 7.82ms from Boston, US
85.110.38.197 AS9121 Turk Telekomunikasyon Anonim Sirketi 11.06ms from Bursa, TR
74.37.52.117 AS7011 Frontier Communications of America, Inc. 18.32ms from Chicago, US
113.165.13.69 AS45899 VNPT Corp 8.23ms from Da Nang, VN
84.167.84.85 AS3320 Deutsche Telekom AG 2.86ms from Hamburg, DE
193.167.254.21 AS1741 CSC - Tieteen tietotekniikan keskus Oy 0.56ms from Helsinki, FI
78.174.23.245 AS9121 Turk Telekomunikasyon Anonim Sirketi 9.34ms from Istanbul, TR
2.61.156.181 AS12389 PJSC Rostelecom 9.16ms from Krasnoyarsk, RU
42.190.106.197 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 6.65ms from Kuala Lumpur, MY
137.22.163.133 AS41354 ITS Technology Group Limited 0.48ms from London, GB
213.201.48.213 AS6739 VODAFONE ONO, S.A. 6.67ms from Madrid, ES
103.163.143.21 AS141754 Emapta Versatile Services Inc 0.37ms from Manila, PH
200.183.62.85 AS4230 CLARO S.A. 0.92ms from Osasco, BR
162.0.208.5 AS22612 Namecheap, Inc. 0.22ms from Phoenix, US
38.14.158.85 AS54600 PEG TECH INC 0.21ms from San Jose, US
144.168.51.37 AS11403 NYI 1.63ms from Secaucus, US
14.70.92.149 AS4766 Korea Telecom 6.42ms from Seoul, KR
210.119.148.213 AS4766 Korea Telecom 3.36ms from Seoul, KR
210.205.85.245 AS7557 Korea Trade Network 1.36ms from Seoul, KR
71.143.149.117 AS7018 AT&T Enterprises, LLC 6.28ms from Atlanta, US
38.104.243.85 AS174 Cogent Communications 0.31ms from Chicago, US
96.82.60.197 AS7922 Comcast Cable Communications, LLC 12.21ms from Chicago, US
130.211.179.245 AS396982 Google LLC 0.14ms from Council Bluffs, US
64.18.198.85 AS14127 Iland Internet Solutions Corporation 1.19ms from Dallas, 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 121.50.49.71
traceroute to 121.50.49.71 (121.50.49.71): 64 hops max, 52 byte packets
5 *
6 *
7 *
8 *
9 [AS6939] 184.104.210.249 161.641 ms
10 [AS151374] 121.50.49.71 152.313 ms
Measurement taken from IPinfo ProbeNet in Medan, ID
On

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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