123.51.128.0/17

AS9919  ·  New Century InfoComm Tech Co., Ltd.

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Summary

Country Taiwan
Domain seed.net.tw
ASN AS9919
Registry APNIC
ID NCICNET-NET

WHOIS Details

inetnum:        123.51.128.0 - 123.51.255.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan 114
country:        TW
admin-c:        JC256-AP
tech-c:         JC256-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-lower:      MAINT-TW-TWNIC
mnt-routes:     MAINT-TW-TWNIC
mnt-irt:        IRT-NCIC-TW
last-modified:  2023-11-30T03:52:57Z
source:         APNIC

irt:            IRT-NCIC-TW
address:        New Century InfoComm Tech. Co., Ltd.
address:        1F~11F, No. 218, Rueiguang Road
address:        Taipei Taiwan 114
e-mail:         antispam@seed.net.tw
abuse-mailbox:  antispam@seed.net.tw
admin-c:        JC256-AP
tech-c:         JC256-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:26:18Z
source:         APNIC

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         hostmaster@twnic.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox:  hostmaster@twnic.tw
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         Jonas Chou
nic-hdl:        JC256-AP
e-mail:         Jonaschou@fareastone.com.tw
address:        2F, No.218, Rueiguang Road
address:        Taipei, 114, R.O.C
phone:          +886-2-7700-8888
fax-no:         +886-2-7700-8888
country:        TW
mnt-by:         MAINT-TW-TWNIC
last-modified:  2012-12-18T10:10:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 123.51.128.0/17

Range ASN Company Num of IPs
123.51.196.0/24 AS9919 New Century InfoComm Tech. Co., Ltd. 256
123.51.181.0/24 AS4780 New Century InfoComm Tech. Co., Ltd. 256
123.51.188.0/24 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
123.51.197.0/24 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
123.51.132.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.172.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.168.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.164.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.160.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.220.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.132.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.128.0/22 AS9919 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.220.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.172.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.168.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024
123.51.160.0/22 AS4780 New Century InfoComm Tech. Co., Ltd. 1,024

Nearby Ranges

BGP prefixes that overlap with 123.51.0.0/16

Range ASN Company Num of IPs
123.51.0.0/17 AS38333 Telcoinabox Operations Pty 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 218 domain names hosted across 137 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
123.51.241.184 tfthbpay.com 4
123.51.155.60 chiimaw.com 3
123.51.208.36 shopdataworks.life 3
123.51.167.225 everose.com.tw 3
123.51.208.79 tutidc.com 2
123.51.168.98 statuteconstant.com.tw 2
123.51.245.79 cheniplaw.com 2
123.51.152.38 medflybiopharm.com.tw 2
123.51.171.84 bodycare365.com 2
123.51.166.198 esd2006.com.tw 2
123.51.208.24 hgame86.com 2
123.51.237.106 thatlazyyuan.yachts 2
123.51.146.66 cityfm.com.tw 2
123.51.216.135 win-dollar.com 1
123.51.237.13 syhdjd.com 1
123.51.167.226 opearry.com.tw 1
123.51.174.113 aegiscloud.com.tw 1
123.51.202.211 axiomtek.ro 1
123.51.167.95 askasu.idv.tw 1
123.51.222.232 g-tech.com.tw 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

2,781 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
123.51.133.255 AS4780 Digital United Inc. 0.75ms from Taipei, TW
123.51.150.81 AS9919 New Century InfoComm Tech Co., Ltd. 3.32ms from Taipei, TW
123.51.203.225 AS9919 New Century InfoComm Tech Co., Ltd. 1.19ms from Taipei, TW
123.51.193.101 AS9919 New Century InfoComm Tech Co., Ltd. 1.06ms from Taipei, TW
123.51.222.116 AS4780 Digital United Inc. 1.51ms from Taipei, TW
123.51.143.19 AS4780 Digital United Inc. 5.95ms from Taipei, TW
123.51.199.161 AS9919 New Century InfoComm Tech Co., Ltd. 1.36ms from Taipei, TW
123.51.198.100 AS9919 New Century InfoComm Tech Co., Ltd. 1.18ms from Taipei, TW
123.51.191.209 AS9919 New Century InfoComm Tech Co., Ltd. 1.07ms from Taipei, TW
123.51.188.225 AS9919 New Century InfoComm Tech Co., Ltd. 1.17ms from Taipei, TW
123.51.228.254 AS9919 New Century InfoComm Tech Co., Ltd. 1.16ms from Taipei, TW
123.51.248.254 AS9919 New Century InfoComm Tech Co., Ltd. 5.75ms from Taipei, TW
123.51.156.32 AS9919 New Century InfoComm Tech Co., Ltd. 1.48ms from Taipei, TW
123.51.132.75 AS9919 New Century InfoComm Tech Co., Ltd. 1.47ms from Taipei, TW
123.51.241.2 AS9919 New Century InfoComm Tech Co., Ltd. 1.06ms from Taipei, TW
123.51.144.56 AS9919 New Century InfoComm Tech Co., Ltd. 0.97ms from Taipei, TW
123.51.213.195 AS9919 New Century InfoComm Tech Co., Ltd. 0.96ms from Taipei, TW
123.51.214.243 AS9919 New Century InfoComm Tech Co., Ltd. 1.06ms from Taipei, TW
123.51.186.1 AS9919 New Century InfoComm Tech Co., Ltd. 1.25ms from Taipei, TW
123.51.205.1 AS9919 New Century InfoComm Tech Co., Ltd. 1.09ms from Taipei, TW
123.51.128.37 AS9919 New Century InfoComm Tech Co., Ltd. 1.78ms from Taipei, TW
123.51.182.242 AS9919 New Century InfoComm Tech Co., Ltd. 1.27ms from Taipei, TW
123.51.185.210 AS9919 New Century InfoComm Tech Co., Ltd. 1.18ms from Taipei, TW
123.51.139.254 AS9919 New Century InfoComm Tech Co., Ltd. 3.77ms from Taipei, TW
123.51.146.59 AS9919 New Century InfoComm Tech Co., Ltd. 3.11ms 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
213.154.246.161 AS12859 BIT BV 1.24ms from Amsterdam, NL
84.28.6.1 AS33915 Vodafone Libertel B.V. 2.31ms from Amsterdam, NL
91.86.156.1 AS47377 Orange Belgium SA 6.20ms from Amsterdam, NL
47.49.165.33 AS20115 Charter Communications LLC 11.27ms from Atlanta, US
134.196.198.1 AS17552 True Online 1.62ms from Bangkok, TH
186.83.4.1 AS10620 Telmex Colombia S.A. 1.70ms from Bogota, CO
113.4.176.81 AS4837 CHINA UNICOM China169 Backbone 9.71ms from Changchun, CN
111.22.195.1 AS56047 China Mobile communications corporation 13.40ms from Changsha, CN
212.99.253.65 AS29100 Sagitta ApS 1.12ms from Copenhagen, DK
93.165.110.1 AS3292 TDC Holding A/S 2.60ms from Copenhagen, DK
38.87.183.1 AS12231 Conway Corporation 11.17ms from Dallas, US
173.185.39.177 AS7029 Windstream Communications LLC 2.48ms from Dallas, US
97.171.101.225 AS6167 Verizon Business 8.42ms from Denver, US
197.89.72.1 AS20011 Dimension Data 1.36ms from Durban, ZA
162.33.43.1 AS13638 Metalink Technologies, Inc. 13.93ms from Flint, US
35.158.60.81 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
91.240.146.17 AS198949 Radware Ltd 0.48ms from Frankfurt am Main, DE
84.201.14.225 AS214036 Ultahost, Inc. 0.49ms from Frankfurt am Main, DE
64.62.147.1 AS6939 Hurricane Electric LLC 1.04ms from Fremont, US
23.118.52.161 AS7018 AT&T Enterprises, LLC 4.66ms from Fremont, US
124.66.88.1 AS4837 CHINA UNICOM China169 Backbone 12.71ms from Guangzhou, CN
168.4.188.129 AS8 Rice University 3.43ms from Houston, US
216.176.116.1 AS14574 RTC Communications 4.95ms from Indianapolis, US
85.104.14.1 AS9121 Turk Telekomunikasyon Anonim Sirketi 19.38ms from Istanbul, TR
112.215.16.161 AS24203 PT XL Axiata 1.20ms from Jakarta, ID

Traceroute

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

$
traceroute -a -n -q1 -f5 123.51.187.254
traceroute to 123.51.187.254 (123.51.187.254): 64 hops max, 52 byte packets
5 [AS3356] 4.68.110.42 4.662 ms
6 [AS3491] 63.223.9.226 270.998 ms
7 *
8 *
9 [AS4780] 139.175.58.209 274.779 ms
10 [AS4780] 139.175.56.142 269.35 ms
11 [AS4780] 192.72.107.190 282.568 ms
12 [AS9919] 220.228.20.154 264.93 ms
13 [AS9919] 123.51.187.254 264.796 ms
Measurement taken from IPinfo ProbeNet in Coventry, GB
On

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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