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
123.51.200.149	AS9919 New Century InfoComm Tech Co., Ltd.	`0.59ms` from Taipei, TW
123.51.201.213	AS9919 New Century InfoComm Tech Co., Ltd.	`0.79ms` 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
208.196.98.55	AS701 Verizon Business	`0.51ms` from Ashburn, US
69.140.227.71	AS7922 Comcast Cable Communications, LLC	`6.70ms` from Ashburn, US
223.159.202.23	AS4134 CHINANET-BACKBONE	`6.19ms` from Changsha, CN
77.225.38.167	AS12430 VODAFONE ESPANA S.A.U.	`8.41ms` from Madrid, ES
80.28.229.215	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.32ms` from Madrid, ES
2.37.124.119	AS30722 Fastweb SpA	`9.30ms` from Milan, IT
71.37.210.199	AS209 CenturyLink Communications, LLC	`4.24ms` from Minneapolis, US
68.110.83.231	AS22773 Cox Communications Inc.	`5.71ms` from Phoenix, US
69.115.142.231	AS6128 Cablevision Systems Corp.	`11.01ms` from Piscataway, US
52.202.146.247	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
138.121.255.183	AS262765 Net Fácil Sistemas Eletrônicos Ltda ME	`4.93ms` from Sao Paulo, BR
14.77.210.71	AS4766 Korea Telecom	`7.59ms` from Seoul, KR
60.21.85.151	AS4837 CHINA UNICOM China169 Backbone	`7.67ms` from Tieling, CN
180.34.93.215	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.19ms` from Tokyo, JP
221.198.1.7	AS4837 CHINA UNICOM China169 Backbone	`5.32ms` from Beijing, CN
197.132.73.135	AS24835 Vodafone Data	`13.47ms` from Cairo, EG
160.177.26.39	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`8.50ms` from Casablanca, MA
84.170.93.55	AS3320 Deutsche Telekom AG	`5.79ms` from Frankfurt am Main, DE
92.252.86.167	AS9145 EWE TEL GmbH	`6.83ms` from Hamburg, DE
86.133.94.199	AS2856 British Telecommunications PLC	`7.77ms` from London, GB
83.201.76.7	AS3215 Orange S.A.	`15.38ms` from Marseille, FR
15.228.119.215	AS16509 Amazon.com, Inc.	`1.99ms` from Osasco, BR
201.97.53.151	AS8151 UNINET	`11.39ms` from Santiago de Querétaro, MX
112.156.36.103	AS17858 LG POWERCOMM	`2.42ms` from Seoul, KR
175.192.255.135	AS4766 Korea Telecom	`1.30ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 123.51.200.139

traceroute to 123.51.200.139 (123.51.200.139): 64 hops max, 52 byte packets

1 [AS15169] 142.250.214.223 182.071 ms

2 *

3 [AS4780] 192.72.124.56 194.022 ms

4 [AS4780] 139.175.57.186 192.301 ms

5 [AS4780] 192.72.107.190 194.31 ms

6 [AS9919] 220.228.20.154 194.952 ms

7 [AS9919] 123.51.200.139 194.001 ms

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On February 7th 2026

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