123.51.128.0/24

AS9919 · New Century InfoComm Tech Co., Ltd.

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Summary

Country	Taiwan
Domain	seed.net.tw
ASN	AS9919
Parent Range	123.51.128.0/22
Registry	TWNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.128.0 - 123.51.131.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        JC849-TW
tech-c:         IO1-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20160818
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:         Anti-Spammer NCIC
address:        New Century InfoComm Tech Co., Ltd
address:        No.218, Rueiguang Road,Nei-Hu, Taipei City
address:        TW Taiwan
country:        TW
phone:          +886-2-7700-8888
fax-no:         +886-2-7700-8888
e-mail:         antispam@seed.net.tw
nic-hdl:        IO1-TW
changed:        hostmaster@twnic.net 20170320
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:         Jonas Chou
address:        New Century InfoComm Tech Co., Ltd
address:        2F, No.218, Rueiguang Road
address:        Taipei Taiwan
country:        TW
phone:          +886-2-7715-5131
fax-no:         +886-2-7700-9995
e-mail:         jonaschou@fareastone.com.tw
nic-hdl:        JC849-TW
changed:        hostmaster@twnic.net 20170320
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 123.51.128.0/24

Range	ASN	Company	Num of IPs
123.51.128.0/22	AS9919	New Century InfoComm Tech. Co., Ltd.	1,024
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

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

IP Address	ASN	Details
123.51.128.37	AS9919 New Century InfoComm Tech Co., Ltd.	`1.78ms` 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
108.141.89.8	AS8075 Microsoft Corporation	`0.20ms` from Amsterdam, NL
178.7.37.24	AS3209 Vodafone GmbH	`9.57ms` from Berlin, DE
74.125.65.72	AS396982 Google LLC	`0.67ms` from Council Bluffs, US
62.31.170.168	AS5089 Virgin Media Limited	`10.45ms` from London, GB
92.177.74.8	AS12479 Orange Espagne SA	`10.71ms` from Madrid, ES
189.191.240.56	AS8151 UNINET	`1.17ms` from Mexico City, MX
78.107.68.88	AS8402 PJSC "Vimpelcom"	`2.08ms` from Moscow, RU
201.47.203.120	AS18881 TELEFÔNICA BRASIL S.A	`1.98ms` from Novo Hamburgo, BR
101.142.225.168	AS17511 OPTAGE Inc.	`2.75ms` from Osaka, JP
179.90.245.72	AS26599 TELEFÔNICA BRASIL S.A	`1.54ms` from Osasco, BR
54.81.57.24	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
116.205.120.40	AS55990 Huawei Cloud Service data center	`2.90ms` from Tianjin, CN
126.88.180.232	AS17676 SoftBank Corp.	`3.18ms` from Tokyo, JP
126.119.18.88	AS17676 SoftBank Corp.	`7.43ms` from Tokyo, JP
153.213.37.8	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.07ms` from Tokyo, JP
20.62.254.120	AS8075 Microsoft Corporation	`0.43ms` from Ashburn, US
123.112.215.56	AS4808 China Unicom Beijing Province Network	`4.55ms` from Beijing, CN
2.242.72.120	AS6805 Telefonica Germany GmbH & Co.OHG	`3.10ms` from Berlin, DE
97.80.77.152	AS20115 Charter Communications LLC	`17.55ms` from Dallas, US
92.132.187.200	AS3215 Orange S.A.	`12.01ms` from Marseille, FR
69.255.129.88	AS7922 Comcast Cable Communications, LLC	`12.18ms` from New York City, US
175.192.144.120	AS4766 Korea Telecom	`1.15ms` from Seoul, KR
216.211.62.72	AS32277 TBayTel	`19.69ms` from Toronto, CA
197.15.109.200	AS37671 3S INF	`1.43ms` from Tunis, TN
52.16.34.184	AS16509 Amazon.com, Inc.	`0.23ms` from Dublin, IE

Traceroute

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

traceroute -a -n -q1 123.51.128.140

traceroute to 123.51.128.140 (123.51.128.140): 64 hops max, 52 byte packets

1 [AS15169] 72.14.235.202 106.891 ms

2 *

3 [AS4780] 139.175.59.160 107.665 ms

4 [AS4780] 139.175.57.186 108.569 ms

5 [AS4780] 192.72.49.106 106.482 ms

6 [AS4780] 192.72.155.74 108.26 ms

7 [AS9919] 61.66.239.138 108.453 ms

8 [AS9919] 123.51.128.140 109.17 ms

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

On November 14th 2025

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