103.23.72.0/22

AS15412 · FLAG TELECOM UK LIMITED

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Summary

Country	Japan
Domain	ci-tec.net
ASN	AS15412
Registry	APNIC
ID	CIT-NET-JP

WHOIS Details

inetnum:        103.23.72.0 - 103.23.75.255
netname:        CIT-NET-JP
descr:          S-Biru-Surugadai 3F Kandaogawamachi 3-10
country:        JP
org:            ORG-CITI1-AP
admin-c:        CITI1-AP
tech-c:         CITI1-AP
abuse-c:        AC1590-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-CIT-NET-JP
mnt-routes:     MAINT-CIT-NET-JP
mnt-irt:        IRT-CIT-NET-JP
last-modified:  2020-05-13T04:20:31Z
source:         APNIC

irt:            IRT-CIT-NET-JP
address:        S-Biru-Surugadai 3F Kandaogawamachi 3-10 Chiyoda-ku Tokyo Japan 101-0052
e-mail:         support@ci-tec.net
abuse-mailbox:  abuse@ci-tec.net
admin-c:        CITI1-AP
tech-c:         CITI1-AP
auth:           # Filtered
remarks:        abuse@ci-tec.net was validated on 2025-06-24
remarks:        support@ci-tec.net was validated on 2025-06-24
mnt-by:         MAINT-CIT-NET-JP
last-modified:  2025-09-04T05:54:12Z
source:         APNIC

organisation:   ORG-CITI1-AP
org-name:       Central Information Technology, Inc.
org-type:       LIR
country:        JP
address:        S-Biru-Surugadai 3F Kandaogawamachi 3-10
phone:          +81-3-6850-0608
fax-no:         +81-3-6850-0608
e-mail:         support@ci-tec.net
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:54Z
source:         APNIC

role:           ABUSE CITNETJP
country:        ZZ
address:        S-Biru-Surugadai 3F Kandaogawamachi 3-10 Chiyoda-ku Tokyo Japan 101-0052
phone:          +000000000
e-mail:         support@ci-tec.net
admin-c:        CITI1-AP
tech-c:         CITI1-AP
nic-hdl:        AC1590-AP
remarks:        Generated from irt object IRT-CIT-NET-JP
remarks:        abuse@ci-tec.net was validated on 2025-06-24
remarks:        support@ci-tec.net was validated on 2025-06-24
abuse-mailbox:  abuse@ci-tec.net
mnt-by:         APNIC-ABUSE
last-modified:  2025-06-24T13:14:01Z
source:         APNIC

role:           CENTRAL INFORMATION TECHNOLOGY INC - network adm
address:        S-Biru-Surugadai 3F Kandaogawamachi 3-10 Chiyoda-ku Tokyo Japan 101-0052
country:        JP
phone:          +81-3-5291-1329
e-mail:         yuu.horie@ci-tec.net
admin-c:        CITI1-AP
tech-c:         CITI1-AP
nic-hdl:        CITI1-AP
mnt-by:         MAINT-CIT-NET-JP
last-modified:  2014-10-14T08:38:26Z
source:         APNIC

route:          103.23.72.0/22
origin:         AS15412
descr:          Central Information Technology, Inc. S-Biru-Surugadai 3F Kandaogawamachi 3-10
mnt-by:         MAINT-CIT-NET-JP
last-modified:  2025-08-19T03:07:42Z
source:         APNIC

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
103.23.72.1	AS15412 FLAG TELECOM UK LIMITED	`8.37ms` from Taipei, TW

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
188.6.153.38	AS5483 Magyar Telekom Plc.	`1.22ms` from Budapest, HU
14.254.124.118	AS45899 VNPT Corp	`2.81ms` from Da Nang, VN
162.19.175.54	AS16276 OVH SAS	`0.22ms` from Frankfurt am Main, DE
79.253.149.214	AS3320 Deutsche Telekom AG	`3.19ms` from Frankfurt am Main, DE
31.210.10.214	AS6663 Euroweb Romania S.R.L.	`0.43ms` from Kyiv, UA
68.7.115.150	AS22773 Cox Communications Inc.	`8.18ms` from Los Angeles, US
162.204.41.198	AS7018 AT&T Enterprises, LLC	`2.92ms` from Miami, US
153.36.22.54	AS4837 CHINA UNICOM China169 Backbone	`6.78ms` from Nanjing, CN
47.104.250.134	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.11ms` from Qingdao, CN
168.195.67.70	AS28201 Companhia Itabirana Telecomunicações Ltda	`8.22ms` from Sao Paulo, BR
183.62.137.198	AS4134 CHINANET-BACKBONE	`3.64ms` from Shenzhen, CN
36.74.193.182	AS7713 PT Telekomunikasi Indonesia	`4.37ms` from Surabaya, ID
99.252.115.134	AS812 Rogers Communications Canada Inc.	`5.06ms` from Toronto, CA
81.186.18.230	AS8248 Computer Technology Institute and Press Diophantus	`16.51ms` from Athens, GR
174.169.30.182	AS7922 Comcast Cable Communications, LLC	`9.52ms` from Boston, US
84.91.230.230	AS13156 NOWO COMMUNICATIONS, S.A.	`7.88ms` from Braga, PT
182.65.62.6	AS24560 Bharti Airtel Ltd., Telemedia Services	`10.79ms` from Chennai, IN
66.97.217.230	AS207355 Ka-net	`4.26ms` from Copenhagen, DK
54.77.129.70	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
91.49.238.182	AS3320 Deutsche Telekom AG	`4.13ms` from Duesseldorf, DE
212.63.79.246	AS8823 Rockenstein AG	`2.27ms` from Frankfurt am Main, DE
218.5.227.150	AS4134 CHINANET-BACKBONE	`4.45ms` from Fuzhou, CN
120.82.231.22	AS17816 China Unicom IP network China169 Guangdong province	`4.41ms` from Guangzhou, CN
34.119.19.38	AS396982 Google LLC	`0.53ms` from Hamina, FI
207.32.31.230	AS5056 Aureon Network Services	`4.93ms` from Kansas City, US

Traceroute

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

traceroute -a -n -q1 -m8 103.23.73.103

traceroute to 103.23.73.103 (103.23.73.103): 8 hops max, 52 byte packets

1 [AS15169] 142.251.65.159 32.106 ms

2 *

3 [AS15412] 62.216.128.6 137.509 ms

4 [AS15412] 62.216.128.94 165.015 ms

5 [AS15412] 62.216.152.22 165.981 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Dallas, US

On September 11th 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.

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