101.0.16.0/20

AS45800 · Suan sunandha Rajabhat University, which is one university in Thailand

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Summary

Country	Japan
Domain	m-idc.jp
ASN	AS45800
Registry	APNIC
ID	W-CAST-2-AS-AP

WHOIS Details

inetnum:        101.0.16.0 - 101.0.31.255
netname:        W-CAST-2-AS-AP
descr:          Double Cast Inc.
descr:          Fuji Shinjuku Building 4th floor
descr:          Shinjuku 5-11-13
country:        JP
org:            ORG-DCI2-AP
admin-c:        YM929-AP
tech-c:         YM929-AP
abuse-c:        AW972-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:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JP-DOUBLECAST
mnt-routes:     MAINT-JP-DOUBLECAST
mnt-irt:        IRT-W-CAST-2-JP
last-modified:  2020-07-22T01:44:14Z
source:         APNIC

irt:            IRT-W-CAST-2-JP
address:        Fuji Shinjuku Building 4th floor
address:        Shinjuku 5-11-13 Shinjuku-ku
address:        Tokyo 160-0022 Japan
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        EN126-AP
tech-c:         EN126-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-08-26
mnt-by:         MAINT-JP-DOUBLECAST
last-modified:  2025-11-18T00:26:23Z
source:         APNIC

organisation:   ORG-DCI2-AP
org-name:       Double Cast Inc.
org-type:       LIR
country:        JP
address:        Fuji Shinjuku Building 4th floor
address:        Shinjuku 5-11-13
phone:          +81-3-3350-7762
fax-no:         +81-3-3350-8685
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:43Z
source:         APNIC

role:           ABUSE WCAST2JP
country:        ZZ
address:        Fuji Shinjuku Building 4th floor
address:        Shinjuku 5-11-13 Shinjuku-ku
address:        Tokyo 160-0022 Japan
phone:          +000000000
e-mail:         [email protected]
admin-c:        EN126-AP
tech-c:         EN126-AP
nic-hdl:        AW972-AP
remarks:        Generated from irt object IRT-W-CAST-2-JP
remarks:        [email protected] was validated on 2025-08-26
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-26T13:52:08Z
source:         APNIC

person:         Yoshihiko Mochizuki
address:        Fuji Shinjuku Building 4th floor
address:        Shinjuku 5-11-13 Shinjuku-ku
address:        Tokyo 160-0022 Japan
country:        JP
phone:          +81-3-3350-7762
e-mail:         [email protected]
nic-hdl:        YM929-AP
mnt-by:         MAINT-JP-DOUBLECAST
last-modified:  2011-03-13T10:42:49Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 101.0.16.0/20

Range	ASN	Company	Num of IPs
101.0.28.0/24	AS139468	DCCOM01	256
101.0.29.0/24	AS139468	DCCOM02	256
101.0.31.0/24	AS139468	DCCOM04	256
101.0.20.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.21.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.22.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.23.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256

Nearby Ranges

BGP prefixes that overlap with 101.0.0.0/16

Range	ASN	Company	Num of IPs
101.0.64.0/18	AS55803	Hostopia Australia Web Pty Ltd	16,384
101.0.4.0/22	AS55670	PT Universal Broadband	1,024
101.0.32.0/22	AS133661	Netplus Broadband Services Private Limited	1,024
101.0.37.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.38.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.41.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.42.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.45.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.49.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.50.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.53.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.57.0/24	AS133661	Netplus Broadband Services Private Limited	256
101.0.62.0/24	AS134674	TATA PLAY BROADBAND PRIVATE LIMITED	256
101.0.10.0/24	AS132827	dscndnt	256
101.0.28.0/24	AS139468	DCCOM01	256
101.0.29.0/24	AS139468	DCCOM02	256
101.0.31.0/24	AS139468	DCCOM04	256
101.0.36.0/24	AS154239	NEOSOFT TECHNOLOGIES INTERNATIONAL	256
101.0.48.0/24	AS154239	NEOSOFT TECHNOLOGIES INTERNATIONAL	256
101.0.20.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.21.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.22.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.23.0/24	AS401783	TOKALA COMMUNICATIONS INC.	256
101.0.4.0/24	AS55670	PT Universal Broadband	256
101.0.7.0/24	AS55670	PT Universal Broadband	256
101.0.63.0/24	AS134674	TATA PLAY BROADBAND PRIVATE LIMITED	256
101.0.11.0/24	AS132827	excllcy	256
101.0.8.0/24	AS132827	mrvlnet	256
101.0.9.0/24	AS132827	amrcanysb	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
101.0.23.66	AS401783 TOKALA COMMUNICATIONS INC.	`0.49ms` from Tokyo, JP
101.0.21.217	AS401783 TOKALA COMMUNICATIONS INC.	`0.52ms` from Tokyo, JP
101.0.22.57	AS401783 TOKALA COMMUNICATIONS INC.	`0.44ms` from Tokyo, JP
101.0.20.2	AS401783 TOKALA COMMUNICATIONS INC.	`0.54ms` from Tokyo, JP
101.0.28.201	AS139468 DC Communications Inc.	`0.53ms` from Tokyo, JP
101.0.31.2	AS139468 DC Communications Inc.	`0.69ms` 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
75.24.112.196	AS7018 AT&T Enterprises, LLC	`6.17ms` from Chicago, US
116.193.68.20	AS24085 Quang Trung Software City Development Company	`1.11ms` from Ho Chi Minh City, VN
50.114.238.100	AS26548 PureVoltage Hosting Inc.	`0.20ms` from New York City, US
114.169.213.196	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.64ms` from Osaka, JP
94.239.84.20	AS5410 Bouygues Telecom SA	`1.86ms` from Paris, FR
104.181.79.228	AS7018 AT&T Enterprises, LLC	`9.62ms` from Redding, US
46.0.82.4	AS34533 JSC "ER-Telecom Holding"	`0.35ms` from Samara, RU
115.15.39.68	AS4766 Korea Telecom	`6.95ms` from Seoul, KR
89.213.240.100	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
154.63.128.132	AS62064 Closeness S.L.	`5.92ms` from Valencia, ES
73.128.146.180	AS7922 Comcast Cable Communications, LLC	`4.79ms` from Ashburn, US
111.22.78.196	AS56047 China Mobile communications corporation	`4.28ms` from Changsha, CN
34.247.117.244	AS16509 Amazon.com, Inc.	`0.12ms` from Dublin, IE
35.156.221.180	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
36.88.62.116	AS7713 PT Telekomunikasi Indonesia	`0.65ms` from Jakarta, ID
212.24.40.36	AS205952 LLC "ASTRA CLOUD"	`1.08ms` from Moscow, RU
82.202.167.196	AS29182 JSC IOT	`0.63ms` from Moscow, RU
43.153.100.36	AS132203 Tencent Building, Kejizhongyi Avenue	`0.23ms` from San Jose, US
210.89.175.68	AS23576 NAVER Cloud Corp.	`0.96ms` from Seoul, KR
36.227.25.84	AS3462 Data Communication Business Group	`1.18ms` from Taipei, TW
120.219.213.100	AS24445 Henan Mobile Communications Co.,Ltd	`5.45ms` from Zhengzhou, CN
120.131.7.4	AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd	`2.80ms` from Beijing, CN
64.227.134.132	AS14061 DigitalOcean, LLC	`0.29ms` from Bengaluru, IN
196.74.191.36	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`12.44ms` from Casablanca, MA
192.189.4.132	AS22458 CONVERGEONE HOLDINGS, INC.	`2.90ms` 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 101.0.23.1

traceroute to 101.0.23.1 (101.0.23.1): 64 hops max, 52 byte packets

1 [AS15169] 142.251.241.130 131.094 ms

2 [AS15169] 108.170.248.250 131.25 ms

3 [] 210.171.224.243 140.981 ms

4 [AS21859] 128.1.110.245 141.41 ms

5 [AS21859] 128.1.65.123 143.602 ms

6 [AS21859] 192.169.109.65 145.288 ms

7 *

8 *

9 *

10 [AS401783] 101.0.23.1 141.787 ms

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On November 28th 2025

What are IP address ranges?

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