123.51.200.0/23

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:        123.51.200.128 - 123.51.200.191
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        NN2928-TW
tech-c:         NN2928-TW
mnt-by:         MAINT-TW-TWNIC
changed:        [email protected] 20170920
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:          886-2-8793-6999ext.7590
fax-no:         886-2-8793-6999ext.7590
e-mail:         [email protected]
nic-hdl:        NN2928-TW
changed:        [email protected] 20170920
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 123.51.200.0/23

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

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 are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
123.51.200.156	AS9919 New Century InfoComm Tech Co., Ltd.	`0.64ms` from Taipei, TW
123.51.201.213	AS9919 New Century InfoComm Tech Co., Ltd.	`1.12ms` 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
44.237.84.87	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
197.46.214.135	AS8452 TE-AS	`4.56ms` from Cairo, EG
72.224.5.231	AS11351 Charter Communications Inc	`16.12ms` from Chicago, US
94.204.52.167	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.49ms` from Dubai, AE
112.111.189.55	AS4837 CHINA UNICOM China169 Backbone	`11.71ms` from Fuzhou, CN
3.11.111.167	AS16509 Amazon.com, Inc.	`0.15ms` from London, GB
107.20.110.135	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
66.127.124.55	AS7018 AT&T Enterprises, LLC	`4.12ms` from San Jose, US
20.245.1.231	AS8075 Microsoft Corporation	`0.59ms` from San Jose, US
193.241.16.167	AS9201 Swedish Armed Forces	`1.13ms` from Stockholm, SE
118.171.128.215	AS3462 Data Communication Business Group	`3.31ms` from Taichung, TW
144.217.237.39	AS16276 OVH SAS	`0.08ms` from Beauharnois, CA
119.249.171.183	AS4837 CHINA UNICOM China169 Backbone	`9.76ms` from Beijing, CN
120.60.168.39	AS9829 National Internet Backbone	`19.01ms` from Bengaluru, IN
79.236.135.7	AS3320 Deutsche Telekom AG	`7.04ms` from Berlin, DE
179.37.96.55	AS22927 Telefonica de Argentina	`1.52ms` from Buenos Aires, AR
186.128.118.135	AS22927 Telefonica de Argentina	`2.08ms` from Buenos Aires, AR
42.102.52.71	AS4134 CHINANET-BACKBONE	`16.49ms` from Dalian, CN
3.67.111.151	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
77.36.102.87	AS9009 M247 Europe SRL	`0.27ms` from Frankfurt am Main, DE
116.110.19.247	AS24086 Viettel Corporation	`9.28ms` from Ho Chi Minh City, VN
85.251.227.119	AS6739 VODAFONE ONO, S.A.	`5.19ms` from Madrid, ES
189.226.141.71	AS8151 UNINET	`1.60ms` from Mexico City, MX
90.50.58.39	AS3215 Orange S.A.	`17.77ms` from Paris, FR
189.231.111.71	AS8151 UNINET	`15.06ms` from Phoenix, US

Traceroute

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

traceroute -a -n -q1 -f3 123.51.201.213

traceroute to 123.51.201.213 (123.51.201.213): 64 hops max, 52 byte packets

3 [AS6762] 195.22.211.61 24.717 ms

4 *

5 [AS9002] 87.245.234.187 195.691 ms

6 [AS9002] 87.245.251.209 194.253 ms

7 [AS4780] 139.175.58.81 191.519 ms

8 [AS4780] 192.72.155.201 253.286 ms

9 [AS4780] 139.175.58.146 254.826 ms

10 [AS4780] 192.72.107.98 253.011 ms

11 [AS9919] 220.228.20.150 246.747 ms

12 [AS9919] 123.51.201.213 259.905 ms

Measurement taken from

IPinfo ProbeNet in Palermo, IT

On December 6th 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