123.51.145.0/24

AS9919 · New Century InfoComm Tech Co., Ltd.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

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

WHOIS Details

inetnum:        123.51.145.0 - 123.51.145.7
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        RN472-TW
tech-c:         RN472-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20161116
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:         Seednet Seednet
address:        Seednet
address:        TAIPEI
address:        N/A Taiwan
country:        TW
phone:          +886-2-0800-073330
fax-no:
e-mail:         root123@seed.net.tw
nic-hdl:        RN472-TW
changed:        hostmaster@twnic.net 20020124
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 123.51.145.0/24

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 is 1 domain name hosted across 1 IP address 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

Read more

Pingable IPs

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

IP Address	ASN	Details
123.51.145.17	AS9919 New Century InfoComm Tech Co., Ltd.	`1.46ms` 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
124.193.93.8	AS4808 China Unicom Beijing Province Network	`4.89ms` from Beijing, CN
70.109.150.104	AS13977 Consolidated Communications, Inc.	`3.45ms` from Boston, US
76.130.74.8	AS7922 Comcast Cable Communications, LLC	`6.17ms` from Denver, US
91.12.210.200	AS3320 Deutsche Telekom AG	`2.62ms` from Frankfurt am Main, DE
90.232.168.248	AS3301 Telia Company AB	`6.72ms` from Goeteborg, SE
35.228.87.8	AS396982 Google LLC	`0.13ms` from Hamina, FI
212.183.211.152	AS6739 VODAFONE ONO, S.A.	`8.84ms` from Madrid, ES
201.185.204.248	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`7.92ms` from Medellin, CO
68.2.137.216	AS22773 Cox Communications Inc.	`1.86ms` from Phoenix, US
99.156.74.104	AS7018 AT&T Enterprises, LLC	`4.68ms` from San Antonio, US
189.50.181.88	AS23105 BCMG INTERNET LTDA	`2.52ms` from Sao Paulo, BR
114.35.119.200	AS3462 Data Communication Business Group	`0.56ms` from Taipei, TW
153.182.60.88	AS4713 NTT Communications Corporation	`2.76ms` from Tokyo, JP
54.155.153.136	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
87.151.52.8	AS3320 Deutsche Telekom AG	`4.29ms` from Duesseldorf, DE
143.255.52.168	AS265139 OXENTE NET EMPREENDIMENTOS LTDA - EPP	`11.21ms` from Fortaleza, BR
73.243.175.232	AS7922 Comcast Cable Communications, LLC	`19.49ms` from Greenwood Village, US
23.201.110.184	AS20940 Akamai International B.V.	`0.20ms` from Hong Kong, HK
86.156.11.40	AS2856 British Telecommunications PLC	`4.69ms` from London, GB
154.19.119.136	AS8796 FASTNET DATA INC	`0.53ms` from Los Angeles, US
23.23.249.8	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
54.159.184.56	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
2.66.184.136	AS44034 Hi3G Access AB	`6.90ms` from Stockholm, SE
103.115.184.56	AS396356 Latitude.sh	`0.27ms` from Sydney, AU
13.112.51.152	AS16509 Amazon.com, Inc.	`0.26ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 123.51.145.17

traceroute to 123.51.145.17 (123.51.145.17): 64 hops max, 52 byte packets

1 [AS15169] 142.250.58.37 125.002 ms

2 [AS15169] 142.250.224.96 122.911 ms

3 *

4 [AS4780] 192.72.124.102 125.477 ms

5 [AS4780] 139.175.57.218 123.226 ms

6 [AS4780] 192.72.107.98 124.221 ms

7 [AS9919] 220.228.21.14 126.492 ms

8 [AS9919] 220.228.20.174 124.404 ms

9 [AS9919] 123.51.145.17 123.49 ms

Measurement taken from

IPinfo ProbeNet in Delhi, IN

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales