123.51.223.0/24

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	123.51.220.0/22
Registry	TWNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.220.0 - 123.51.223.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        IO1-TW
tech-c:         IO1-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20121206
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

Overlapping Ranges

BGP prefixes that contain 123.51.223.0/24

Range	ASN	Company	Num of IPs
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
123.51.128.0/17	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 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
123.51.223.98	sinsin.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

Read more

Pingable IPs

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

IP Address	ASN	Details
123.51.223.120	AS9919 New Century InfoComm Tech Co., Ltd.	`0.90ms` 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
40.121.33.72	AS8075 Microsoft Corporation	`0.42ms` from Ashburn, US
94.66.169.72	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.40ms` from Athens, GR
73.20.232.136	AS7922 Comcast Cable Communications, LLC	`13.65ms` from Atlanta, US
203.151.24.88	AS4618 Internet Thailand Company Limited	`0.53ms` from Bangkok, TH
86.44.245.136	AS5466 Eircom Limited	`3.75ms` from Dublin, IE
87.181.28.40	AS3320 Deutsche Telekom AG	`7.58ms` from Frankfurt am Main, DE
209.54.77.216	AS11290 Cogeco Connexion inc	`7.90ms` from Montreal, CA
97.237.58.184	AS6167 Verizon Business	`9.37ms` from New York City, US
71.186.214.200	AS701 Verizon Business	`9.22ms` from New York City, US
95.170.157.184	AS25549 JSC Avantel	`4.87ms` from Novosibirsk, RU
217.83.6.120	AS3320 Deutsche Telekom AG	`2.23ms` from Nuernberg, DE
88.94.240.184	AS2119 Telenor Norge AS	`14.17ms` from Oslo, NO
73.15.106.72	AS7922 Comcast Cable Communications, LLC	`11.72ms` from Santa Clara, US
189.189.222.56	AS8151 UNINET	`4.23ms` from Santiago de Queretaro, MX
49.166.251.200	AS17858 LG POWERCOMM	`1.85ms` from Seoul, KR
14.49.174.184	AS4766 Korea Telecom	`10.11ms` from Seoul, KR
157.151.31.232	AS31898 Oracle Corporation	`0.18ms` from Vinhedo, BR
87.206.229.184	AS9141 P4 Sp. z o.o.	`3.56ms` from Warsaw, PL
104.45.29.8	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
195.251.118.152	AS5408 National Infrastructures for Research and Technology S.A.	`1.13ms` from Athens, GR
125.236.189.136	AS4771 Spark New Zealand Trading Ltd.	`13.55ms` from Auckland, NZ
160.45.169.72	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.38ms` from Berlin, DE
152.202.7.120	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`12.45ms` from Bogota, CO
90.144.196.216	AS1257 Tele2 Sverige AB	`0.50ms` from Goeteborg, SE
102.22.35.232	AS327892 BETHNET cc	`3.98ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 123.51.223.196

traceroute to 123.51.223.196 (123.51.223.196): 64 hops max, 52 byte packets

1 [AS15169] 142.250.214.223 39.929 ms

2 *

3 [AS4780] 192.72.124.96 51.548 ms

4 [AS4780] 139.175.58.146 51.478 ms

5 [AS4780] 192.72.107.98 51.669 ms

6 [AS9919] 220.228.23.14 51.433 ms

7 [AS9919] 61.66.238.242 52.068 ms

8 [AS9919] 123.51.223.196 52.419 ms

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On January 19th 2026

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