123.51.176.0/24

AS9919 · New Century InfoComm Tech Co., Ltd.

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Summary

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

WHOIS Details

inetnum:        123.51.176.0 - 123.51.176.127
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        NN1845-TW
tech-c:         NN1845-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20151002
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:          886-9-0813-0390
fax-no:         886-9-0813-0390
e-mail:         tym755@hotmail.com.tw
nic-hdl:        NN1845-TW
changed:        hostmaster@twnic.net 20151002
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 123.51.176.0/24

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

Hosted domains

There are 4 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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Pingable IPs

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

IP Address	ASN	Details
123.51.176.3	AS9919 New Century InfoComm Tech Co., Ltd.	`1.58ms` 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
200.115.176.88	AS262205 Banco del Pais	`12.72ms` from Guatemala City, GT
120.72.119.8	AS24085 Quang Trung Software City Development Company	`1.10ms` from Ho Chi Minh City, VN
70.113.133.248	AS11427 Charter Communications Inc	`9.97ms` from Houston, US
182.59.175.248	AS17813 Mahanagar Telephone Nigam Limited	`2.67ms` from Mumbai, IN
83.21.233.152	AS5617 Orange Polska Spolka Akcyjna	`3.55ms` from Poznan, PL
136.38.129.216	AS16591 Google Fiber Inc.	`0.97ms` from Salt Lake City, US
47.102.4.136	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.17ms` from Shanghai, CN
128.106.212.248	AS9506 Singtel Fibre Broadband	`1.94ms` from Singapore, SG
41.230.61.232	AS37705 TOPNET	`1.47ms` from Tunis, TN
47.72.106.104	AS9500 One New Zealand Group Limited	`4.50ms` from Christchurch, NZ
73.5.41.40	AS7922 Comcast Cable Communications, LLC	`15.19ms` from Dallas, US
9.223.216.216	AS8075 Microsoft Corporation	`0.14ms` from Gaevle, SE
159.224.185.216	AS13188 CONTENT DELIVERY NETWORK LTD	`8.54ms` from Kyiv, UA
149.107.146.72	AS199335 Talk Straight Ltd.	`0.21ms` from London, GB
170.150.226.8	AS265036 BMJnet Telecom	`0.73ms` from Osasco, BR
86.209.106.248	AS3215 Orange S.A.	`8.53ms` from Paris, FR
185.176.178.120	AS44407 Linkt SAS	`0.25ms` from Paris, FR
50.39.188.152	AS20055 Wholesail networks LLC	`1.01ms` from Portland, US
3.91.154.136	AS14618 Amazon.com, Inc.	`0.41ms` from Reston, US
117.192.147.168	AS9829 National Internet Backbone	`17.24ms` from Saint Thomas Mount, IN
71.94.86.248	AS20115 Charter Communications LLC	`9.19ms` from Santa Clara, US
120.25.197.232	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.74ms` from Shenzhen, CN
78.1.221.24	AS5391 Hrvatski Telekom d.d.	`2.15ms` from Zagreb, HR
182.134.77.136	AS4134 CHINANET-BACKBONE	`9.32ms` from Chengdu, CN
149.172.225.8	AS3209 Vodafone GmbH	`12.55ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -f4 123.51.176.49

traceroute to 123.51.176.49 (123.51.176.49): 64 hops max, 52 byte packets

4 [] 77.88.203.25 0.479 ms

5 *

6 [AS9002] 87.245.232.13 256.444 ms

7 [AS9002] 87.245.251.209 256.782 ms

8 [AS4780] 192.72.155.205 238.703 ms

9 [AS4780] 139.175.56.142 238.308 ms

10 [AS4780] 192.72.49.98 239.662 ms

11 [AS4780] 192.72.155.58 239.981 ms

12 [AS9919] 123.51.176.49 239.153 ms

Measurement taken from

IPinfo ProbeNet in Kyiv, UA

On October 3rd 2025

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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