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:  2025-09-03T04:07:36Z
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 226 domain names hosted across 134 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 tfusdtpay.com 4
123.51.167.225 steiff.com.tw 3
123.51.190.157 upro.tw 3
123.51.159.35 taipei-twins.com 3
123.51.208.38 uptopendodown.shop 3
123.51.208.150 17ping.net 2
123.51.184.217 9longstay.com.tw 2
123.51.146.72 cotabank.com.tw 2
123.51.148.21 fcuaa.org.tw 2
123.51.164.16 englishbell.tw 2
123.51.165.217 epochtaiwan.com 2
123.51.208.24 nutakyou.com 2
123.51.171.84 bodycare365.com 2
123.51.159.221 supermicro.dev 1
123.51.216.131 da-lai.tw 1
123.51.237.13 syhdjd.com 1
123.51.163.144 youngqin.com 1
123.51.216.135 win-dollar.com 1
123.51.162.180 wecare-you.com 1
123.51.216.130 da-lai-international.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

2,854 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
123.51.174.148 AS9919 New Century InfoComm Tech Co., Ltd. 1.19ms from Taipei, TW
123.51.203.193 AS9919 New Century InfoComm Tech Co., Ltd. 1.18ms from Taipei, TW
123.51.193.101 AS9919 New Century InfoComm Tech Co., Ltd. 0.99ms from Taipei, TW
123.51.128.170 AS9919 New Century InfoComm Tech Co., Ltd. 1.76ms from Taipei, TW
123.51.149.105 AS4780 Digital United Inc. 1.41ms from Taipei, TW
123.51.171.180 AS9919 New Century InfoComm Tech Co., Ltd. 1.22ms from Taipei, TW
123.51.132.225 AS9919 New Century InfoComm Tech Co., Ltd. 1.36ms from Taipei, TW
123.51.221.21 AS9919 New Century InfoComm Tech Co., Ltd. 1.57ms from Taipei, TW
123.51.157.21 AS9919 New Century InfoComm Tech Co., Ltd. 0.91ms from Taipei, TW
123.51.197.135 AS9919 New Century InfoComm Tech Co., Ltd. 0.96ms from Taipei, TW
123.51.225.254 AS9919 New Century InfoComm Tech Co., Ltd. 1.93ms from Taipei, TW
123.51.168.111 AS9919 New Century InfoComm Tech Co., Ltd. 1.15ms from Taipei, TW
123.51.156.35 AS9919 New Century InfoComm Tech Co., Ltd. 1.46ms from Taipei, TW
123.51.216.242 AS9919 New Century InfoComm Tech Co., Ltd. 0.98ms from Taipei, TW
123.51.211.49 AS9919 New Century InfoComm Tech Co., Ltd. 1.11ms from Taipei, TW
123.51.181.254 AS4780 Digital United Inc. 1.67ms from Taipei, TW
123.51.133.255 AS4780 Digital United Inc. 0.63ms from Taipei, TW
123.51.134.254 AS9919 New Century InfoComm Tech Co., Ltd. 1.39ms from Taipei, TW
123.51.188.33 AS9919 New Century InfoComm Tech Co., Ltd. 1.07ms from Taipei, TW
123.51.140.39 AS9919 New Century InfoComm Tech Co., Ltd. 1.07ms from Taipei, TW
123.51.182.209 AS9919 New Century InfoComm Tech Co., Ltd. 1.19ms from Taipei, TW
123.51.152.180 AS9919 New Century InfoComm Tech Co., Ltd. 0.97ms from Taipei, TW
123.51.220.116 AS9919 New Century InfoComm Tech Co., Ltd. 1.24ms from Taipei, TW
123.51.217.103 AS9919 New Century InfoComm Tech Co., Ltd. 1.26ms from Taipei, TW
123.51.224.254 AS9919 New Century InfoComm Tech Co., Ltd. 1.24ms 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
141.252.235.1 AS1103 SURF B.V. 4.41ms from Amsterdam, NL
62.59.112.1 AS13127 Odido Netherlands B.V. 4.35ms from Amsterdam, NL
217.103.143.1 AS33915 Vodafone Libertel B.V. 4.53ms from Amsterdam, NL
72.84.227.1 AS701 Verizon Business 4.33ms from Ashburn, US
109.121.24.145 AS7029 Windstream Communications LLC 0.37ms from Ashburn, US
68.81.170.65 AS7922 Comcast Cable Communications, LLC 7.15ms from Ashburn, US
101.241.116.1 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 5.65ms from Beijing, CN
190.143.0.1 AS10620 Telmex Colombia S.A. 3.68ms from Bogota, CO
109.102.162.1 AS9050 Orange Romania S.A. 5.90ms from Bucharest, RO
181.171.156.1 AS7303 Telecom Argentina S.A. 7.90ms from Buenos Aires, AR
104.157.12.1 AS852 TELUS Communications Inc. 1.43ms from Calgary, CA
112.121.57.49 AS45625 LTIMINDTREE LIMITED 1.15ms from Chennai, IN
69.4.10.81 AS19229 Ensono LP 0.88ms from Chicago, US
104.166.208.1 AS30036 Mediacom Communications Corp 19.80ms from Chicago, US
69.40.91.49 AS7029 Windstream Communications LLC 15.66ms from Chicago, US
114.23.49.193 AS56030 Voyager Internet Ltd. 0.10ms from Christchurch, NZ
98.102.120.129 AS10796 Charter Communications Inc 6.70ms from Columbus, US
45.26.172.1 AS7018 AT&T Enterprises, LLC 8.49ms from Columbus, US
77.247.76.209 AS31590 Rackhosting.com ApS 0.87ms from Copenhagen, DK
24.117.7.1 AS11492 CABLE ONE, INC. 4.83ms from Dallas, US
173.217.168.1 AS19108 Optimum 8.10ms from Dallas, US
98.171.151.209 AS22773 Cox Communications Inc. 10.19ms from Dallas, US
199.91.128.161 AS32281 CCT LLC 7.24ms from Denver, US
69.84.77.49 AS11138 BEK Communications Cooperative 18.22ms from Des Moines, US
24.65.233.17 AS6327 Shaw Communications Inc. 1.17ms from Edmonton, CA

Traceroute

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

$
traceroute -a -n -q1 123.51.131.254
traceroute to 123.51.131.254 (123.51.131.254): 64 hops max, 52 byte packets
1 [AS15169] 142.250.58.37 188.282 ms
2 [AS15169] 192.178.108.144 188.421 ms
3 *
4 [AS4780] 139.175.58.30 223.569 ms
5 [AS4780] 139.175.57.218 204.106 ms
6 [AS4780] 192.72.49.82 205.735 ms
7 [AS4780] 192.72.155.54 205.337 ms
8 [AS9919] 123.51.131.254 207.433 ms
Measurement taken from IPinfo ProbeNet in Moncks Corner, US
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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