123.51.166.0/24

AS9919 · New Century InfoComm Tech Co., Ltd.

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Summary

Country	Taiwan
Domain	seed.net.tw
ASN	AS9919
Parent Range	123.51.164.0/22
Registry	TWNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.164.0 - 123.51.167.255
netname:        NCICNET-NET
descr:
descr:          No.218,Rueiguang Rd.,
descr:          Taipei Taiwan
country:        TW
admin-c:        IO1-TW
tech-c:         IO1-TW
mnt-by:         MAINT-TW-TWNIC
changed:        antispam@seed.net.tw 20151113
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 123.51.166.0/24

Range	ASN	Company	Num of IPs
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	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	AS9919	New Century InfoComm Tech. Co., Ltd.	32,768
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
123.51.132.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.160.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.220.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.160.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.128.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.132.0/22	AS9919	9F,No.468,Rueiguang Rd.,	1,024
123.51.168.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.220.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256
123.51.198.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.199.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.197.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.193.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.194.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.195.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.188.0/24	AS9919	N/A	256
123.51.208.0/24	AS9919	2F.,No.6,Aly.30,Ln.210,WendeRd.,NeihuDist.,TaipeiCity114,Taiwan(R.O.C.)	256
123.51.196.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.181.0/24	AS4780	13F., No.210, Sec. 1, Sanmin Rd.,Banqiao Dist., New Taipei City, Taiwan (R.O.C.)	256

Hosted domains

There are 3 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
123.51.166.198	esd2006.com.tw	2
123.51.166.238	comtel.com.tw	1

Hosted domains API

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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
123.51.166.31	AS9919 New Century InfoComm Tech Co., Ltd.	`1.08ms` 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
3.162.132.152	AS16509 Amazon.com, Inc.	`0.51ms` from Ashburn, US
93.232.144.120	AS3320 Deutsche Telekom AG	`4.01ms` from Berlin, DE
78.21.247.88	AS6848 Telenet BV	`7.60ms` from Brussels, BE
76.155.218.120	AS7922 Comcast Cable Communications, LLC	`2.47ms` from Denver, US
76.139.134.200	AS7922 Comcast Cable Communications, LLC	`11.62ms` from Flint, US
189.137.195.248	AS8151 UNINET	`4.27ms` from Guadalajara, MX
114.233.77.200	AS4134 CHINANET BACKBONE	`7.43ms` from Nanjing, CN
72.225.28.104	AS11351 Charter Communications Inc	`17.34ms` from New York City, US
24.39.13.8	AS11351 Charter Communications Inc	`8.77ms` from New York City, US
175.119.237.168	AS9318 SK Broadband Co Ltd	`7.26ms` from Seoul, KR
112.212.2.88	AS9689 SK Broadband Co Ltd	`7.49ms` from Seoul, KR
27.143.179.120	AS9824 JCOM Co., Ltd.	`2.58ms` from Tokyo, JP
188.125.132.24	AS44914 Petrus Spolka z ograniczona odpowiedzialnoscia	`11.43ms` from Warsaw, PL
58.227.106.88	AS9318 SK Broadband Co Ltd	`2.50ms` from Incheon, KR
79.157.207.216	AS3352 TELEFONICA DE ESPANA S.A.U.	`11.28ms` from Madrid, ES
84.122.198.200	AS6739 Vodafone ONO AS	`11.97ms` from Madrid, ES
114.217.33.40	AS4134 CHINANET BACKBONE	`4.95ms` from Nanjing, CN
103.54.157.40	AS131965 Xserver Inc.	`0.40ms` from Osaka, JP
143.196.255.200	AS60855 LA DIRECTION INTERMINISTERIELLE DU NUMERIQUE	`2.32ms` from Paris, FR
100.28.22.184	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
34.106.1.8	AS396982 Google LLC	`0.12ms` from Salt Lake City, US
189.62.138.40	AS28573 Claro NXT Telecomunicacoes Ltda	`6.67ms` from Sao Paulo, BR
14.88.94.168	AS4766 Korea Telecom	`1.95ms` from Seoul, KR
111.118.32.8	AS7562 HCN Dongjak	`0.81ms` from Seoul, KR
203.70.195.136	AS4780 Digital United Inc.	`2.32ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f3 123.51.166.47

traceroute to 123.51.166.47 (123.51.166.47): 64 hops max, 52 byte packets

3 [AS21859] 23.248.177.212 0.192 ms

4 [AS4780] 192.72.250.13 0.855 ms

5 [AS4780] 139.175.57.105 1.142 ms

6 [AS4780] 139.175.57.186 1.244 ms

7 [AS4780] 192.72.107.190 1.484 ms

8 [AS9919] 220.228.23.10 1.067 ms

9 [AS9919] 61.66.238.234 2.255 ms

10 [AS9919] 123.51.166.47 10.93 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On April 13th 2026

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