123.51.200.0/23

AS9919 · New Century InfoComm Tech Co., Ltd.

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Summary

Country	Taiwan
Domain	seed.net.tw
ASN	AS9919
Parent Range	123.51.128.0/17
Registry	TWNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.200.128 - 123.51.200.191
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        NN2928-TW
tech-c:         NN2928-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20170920
status:         ASSIGNED NON-PORTABLE
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC


person:         N/A N/A
address:        N/A
address:        N/A
address:        N/A Taiwan
country:        TW
phone:          886-2-8793-6999ext.7590
fax-no:         886-2-8793-6999ext.7590
e-mail:         yujeng@cathaybk.com.tw
nic-hdl:        NN2928-TW
changed:        hostmaster@twnic.net 20170920
remarks:        This information has been partially mirrored by APNIC from
remarks:        TWNIC. To obtain more specific information, please use the
remarks:        TWNIC whois server at whois.twnic.net.
source:         TWNIC

Overlapping Ranges

BGP prefixes that contain 123.51.200.0/23

Range	ASN	Company	Num of IPs
123.51.128.0/17	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768

Nearby Ranges

BGP prefixes that overlap with 123.51.0.0/16

Range	ASN	Company	Num of IPs
123.51.128.0/17	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.128.0/17	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.0.0/17	AS45510	Telcoinabox Operations Pty Ltd	32,768
123.51.172.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.220.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.220.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.132.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.160.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.168.0/22	AS4780	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.128.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.132.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.160.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.164.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.168.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.172.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256
123.51.188.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.193.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.194.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.195.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.181.0/24	AS4780	New Century InfoComm Tech. Co., Ltd.	256
123.51.196.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.197.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.198.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.199.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256
123.51.208.0/24	AS9919	New Century InfoComm Tech. Co., Ltd.	256

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

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

IP Address	ASN	Details
123.51.200.155	AS9919 New Century InfoComm Tech Co., Ltd.	`0.84ms` from Taipei, TW
123.51.201.213	AS9919 New Century InfoComm Tech Co., Ltd.	`1.14ms` 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
188.142.110.247	AS1136 KPN B.V.	`3.28ms` from Amsterdam, NL
58.44.35.55	AS4134 CHINANET-BACKBONE	`2.94ms` from Changsha, CN
68.39.134.231	AS7922 Comcast Cable Communications, LLC	`11.58ms` from Chicago, US
97.118.70.7	AS209 CenturyLink Communications, LLC	`2.83ms` from Denver, US
194.9.200.199	AS61157 PlusServer GmbH	`0.45ms` from Duesseldorf, DE
110.225.163.39	AS24560 Bharti Airtel Ltd., Telemedia Services	`2.17ms` from Hyderabad, IN
123.244.88.247	AS4134 CHINANET-BACKBONE	`7.48ms` from Liaoyang, CN
212.78.76.71	AS48254 20i Limited	`0.90ms` from London, GB
72.197.121.7	AS22773 Cox Communications Inc.	`9.04ms` from Los Angeles, US
38.152.138.119	AS36352 HostPapa	`0.23ms` from Los Angeles, US
72.111.105.199	AS6167 Verizon Business	`13.98ms` from Los Angeles, US
79.9.239.55	AS3269 Telecom Italia S.p.A.	`2.63ms` from Milan, IT
162.1.182.7	AS27353 Indiana University Health Inc.	`14.98ms` from Mount Prospect, US
45.175.185.247	AS268904 Prívate Internet	`3.46ms` from Novo Hamburgo, BR
123.130.210.119	AS4837 CHINA UNICOM China169 Backbone	`10.21ms` from Qingdao, CN
88.93.200.71	AS2119 Telenor Norge AS	`11.73ms` from Sandefjord, NO
119.213.12.183	AS4766 Korea Telecom	`4.27ms` from Seoul, KR
175.41.200.151	AS16509 Amazon.com, Inc.	`0.15ms` from Tokyo, JP
41.108.106.247	AS36947 Telecom Algeria	`12.39ms` from Algiers, DZ
108.31.78.215	AS701 Verizon Business	`2.31ms` from Ashburn, US
24.3.239.151	AS7922 Comcast Cable Communications, LLC	`10.40ms` from Ashburn, US
201.179.77.55	AS22927 Telefonica de Argentina	`8.17ms` from Buenos Aires, AR
222.244.228.23	AS4134 CHINANET-BACKBONE	`1.99ms` from Changsha, CN
174.109.47.87	AS11426 Charter Communications Inc	`10.04ms` from Charlotte, US
47.185.147.183	AS5650 Frontier Communications of America, Inc.	`1.73ms` 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 123.51.200.158

traceroute to 123.51.200.158 (123.51.200.158): 64 hops max, 52 byte packets

1 [AS15169] 72.14.235.202 192.913 ms

2 *

3 [AS4780] 139.175.58.201 199.62 ms

4 [AS4780] 139.175.57.186 199.782 ms

5 [AS4780] 192.72.107.190 200.114 ms

6 [AS9919] 220.228.20.154 200.402 ms

7 [AS9919] 123.51.200.158 199.579 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On October 30th 2025

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