123.51.198.0/24

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:        123.51.198.0 - 123.51.198.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        AS100-TW
tech-c:         AS100-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20121001
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:         Allen Shyu
address:        New Century InfoComm Tech Co., Ltd
address:        6F, No. 218, Rueiguang Road
address:        Taipei Taiwan
country:        TW
phone:          +886-2-7700-9968
fax-no:         +886-2-7700-9968
e-mail:         idcservice@fareastone.com.tw
nic-hdl:        AS100-TW
changed:        hostmaster@twnic.net 20101027
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 123.51.198.0/24

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 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

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Pingable IPs

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

IP Address	ASN	Details
123.51.198.100	AS9919 New Century InfoComm Tech Co., Ltd.	`1.03ms` 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
99.96.253.8	AS7018 AT&T Enterprises, LLC	`6.29ms` from Atlanta, US
134.249.176.152	AS15895 "Kyivstar" PJSC	`3.90ms` from Kyiv, UA
201.121.118.136	AS8151 UNINET	`1.55ms` from Mexico City, MX
88.54.182.72	AS3269 Telecom Italia S.p.A.	`0.98ms` from Milan, IT
80.13.5.88	AS3215 Orange S.A.	`6.91ms` from Paris, FR
52.160.232.232	AS8075 Microsoft Corporation	`0.57ms` from San Jose, US
176.228.71.216	AS12400 Partner Communications Ltd.	`1.03ms` from Tel Aviv, IL
136.117.45.8	AS396982 Google LLC	`0.15ms` from The Dalles, US
60.4.255.232	AS4837 CHINA UNICOM China169 Backbone	`11.13ms` from Beijing, CN
172.210.183.56	AS8075 Microsoft Corporation	`0.21ms` from Boydton, US
45.129.241.56	AS63025 NOHAVPS LLC	`0.14ms` from Draper, US
83.112.123.168	AS3215 Orange S.A.	`10.76ms` from Frankfurt am Main, DE
79.135.90.152	AS5563 Ural Regional Net	`14.59ms` from Kazan, RU
71.13.141.216	AS20115 Charter Communications LLC	`11.17ms` from Milwaukee, US
35.142.85.184	AS33363 Charter Communications, Inc	`8.07ms` from Orlando, US
126.25.167.248	AS17676 SoftBank Corp.	`10.61ms` from Osaka, JP
176.144.247.184	AS5410 Bouygues Telecom SA	`1.54ms` from Paris, FR
98.90.98.120	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
13.57.239.72	AS16509 Amazon.com, Inc.	`0.70ms` from San Jose, US
175.207.241.168	AS4766 Korea Telecom	`10.50ms` from Seoul, KR
125.110.154.232	AS4134 CHINANET-BACKBONE	`17.41ms` from Suqian, CN
79.184.7.136	AS5617 Orange Polska Spolka Akcyjna	`1.85ms` from Warsaw, PL
182.127.250.232	AS4837 CHINA UNICOM China169 Backbone	`3.24ms` from Zhengzhou, CN
92.46.8.40	AS9198 JSC Kazakhtelecom	`2.10ms` from Almaty, KZ
184.81.251.200	AS7029 Windstream Communications LLC	`10.57ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 123.51.198.162

traceroute to 123.51.198.162 (123.51.198.162): 64 hops max, 52 byte packets

1 [AS15169] 142.250.58.37 161.183 ms

2 [AS15169] 142.250.232.170 161.496 ms

3 *

4 [AS4780] 192.72.124.102 164.225 ms

5 [AS4780] 139.175.56.142 163.359 ms

6 [AS4780] 192.72.107.190 164.029 ms

7 [AS9919] 220.228.20.66 164.279 ms

8 [AS9919] 218.32.221.10 163.624 ms

9 [AS9919] 123.51.198.162 164.242 ms

Measurement taken from

IPinfo ProbeNet in Dallas, US

On October 9th 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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