123.51.192.0/18

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	APNIC
ID	NCICNET-NET

WHOIS Details

inetnum:        123.51.128.0 - 123.51.255.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan 114
country:        TW
admin-c:        JC256-AP
tech-c:         JC256-AP
abuse-c:        AT939-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-TW-TWNIC
mnt-lower:      MAINT-TW-TWNIC
mnt-routes:     MAINT-TW-TWNIC
mnt-irt:        IRT-NCIC-TW
last-modified:  2023-11-30T03:52:57Z
source:         APNIC

irt:            IRT-NCIC-TW
address:        New Century InfoComm Tech. Co., Ltd.
address:        1F~11F, No. 218, Rueiguang Road
address:        Taipei Taiwan 114
e-mail:         antispam@seed.net.tw
abuse-mailbox:  antispam@seed.net.tw
admin-c:        JC256-AP
tech-c:         JC256-AP
auth:           # Filtered
mnt-by:         MAINT-TW-TWNIC
last-modified:  2025-11-06T07:26:18Z
source:         APNIC

role:           ABUSE TWNICAP
country:        ZZ
address:        3F., No. 123, Sec. 4, Bade Rd., Songshan Dist., Taipei 105, Taiwan
phone:          +000000000
e-mail:         hostmaster@twnic.tw
admin-c:        TWA2-AP
tech-c:         TWA2-AP
nic-hdl:        AT939-AP
remarks:        Generated from irt object IRT-TWNIC-AP
remarks:        hostmaster@twnic.tw was validated on 2025-05-23
abuse-mailbox:  hostmaster@twnic.tw
mnt-by:         APNIC-ABUSE
last-modified:  2025-05-23T00:02:10Z
source:         APNIC

person:         Jonas Chou
nic-hdl:        JC256-AP
e-mail:         Jonaschou@fareastone.com.tw
address:        2F, No.218, Rueiguang Road
address:        Taipei, 114, R.O.C
phone:          +886-2-7700-8888
fax-no:         +886-2-7700-8888
country:        TW
mnt-by:         MAINT-TW-TWNIC
last-modified:  2012-12-18T10:10:01Z
source:         APNIC

Overlapping Ranges

BGP prefixes that contain 123.51.192.0/18

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

BGP prefixes that are contained by 123.51.192.0/18

Range	ASN	Company	Num of IPs
123.51.195.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.194.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.208.0/24	AS9919	2F.,No.6,Aly.30,Ln.210,WendeRd.,NeihuDist.,TaipeiCity114,Taiwan(R.O.C.)	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
123.51.198.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.199.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.196.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.220.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.220.0/22	AS4780	No.218,Rueiguang Rd.,	1,024

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
123.51.0.0/17	AS38333	Telcoinabox Operations Pty Ltd	32,768
123.51.128.0/17	AS4780	New Century InfoComm Tech. Co., Ltd.	32,768
123.51.160.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.132.0/22	AS4780	9F,No.468,Rueiguang Rd.,	1,024
123.51.220.0/22	AS4780	No.218,Rueiguang Rd.,	1,024
123.51.160.0/22	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
123.51.220.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.164.0/22	AS9919	No.218,Rueiguang Rd.,	1,024
123.51.172.0/22	AS9919	9F,No.468,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
123.51.199.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.193.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.196.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.188.0/24	AS9919	N/A	256
123.51.0.0/24	AS38333	Level 6, 9-13 Young Street	256
123.51.194.0/24	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
123.51.198.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.195.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256
123.51.208.0/24	AS9919	2F.,No.6,Aly.30,Ln.210,WendeRd.,NeihuDist.,TaipeiCity114,Taiwan(R.O.C.)	256
123.51.197.0/24	AS9919	9F,No.468,Rueiguang Rd.,	256

Hosted domains

There are 343 domain names hosted across 70 IP addresses 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

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Pingable IPs

1,307 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
123.51.197.135	AS9919 New Century InfoComm Tech Co., Ltd.	`0.90ms` from Taipei, TW
123.51.196.137	AS9919 New Century InfoComm Tech Co., Ltd.	`0.90ms` from Taipei, TW
123.51.198.100	AS9919 New Century InfoComm Tech Co., Ltd.	`0.96ms` from Taipei, TW
123.51.193.9	AS9919 New Century InfoComm Tech Co., Ltd.	`0.86ms` from Taipei, TW
123.51.208.10	AS9919 New Century InfoComm Tech Co., Ltd.	`0.93ms` from Taipei, TW
123.51.235.26	AS9919 New Century InfoComm Tech Co., Ltd.	`1.52ms` from Taipei, TW
123.51.206.33	AS9919 New Century InfoComm Tech Co., Ltd.	`1.11ms` from Taipei, TW
123.51.234.254	AS4780 Digital United Inc.	`3.38ms` from Taipei, TW
123.51.223.97	AS9919 New Century InfoComm Tech Co., Ltd.	`1.31ms` from Taipei, TW
123.51.253.254	AS4780 Digital United Inc.	`6.15ms` from Taipei, TW
123.51.226.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.96ms` from Taipei, TW
123.51.214.243	AS9919 New Century InfoComm Tech Co., Ltd.	`1.18ms` from Taipei, TW
123.51.247.207	AS9919 New Century InfoComm Tech Co., Ltd.	`0.92ms` from Taipei, TW
123.51.219.36	AS9919 New Century InfoComm Tech Co., Ltd.	`1.04ms` from Taipei, TW
123.51.237.240	AS9919 New Century InfoComm Tech Co., Ltd.	`0.91ms` from Taipei, TW
123.51.207.129	AS9919 New Century InfoComm Tech Co., Ltd.	`1.08ms` from Taipei, TW
123.51.224.254	AS9919 New Century InfoComm Tech Co., Ltd.	`1.26ms` from Taipei, TW
123.51.248.193	AS9919 New Century InfoComm Tech Co., Ltd.	`5.72ms` from Taipei, TW
123.51.239.32	AS9919 New Century InfoComm Tech Co., Ltd.	`1.03ms` from Taipei, TW
123.51.251.90	AS9919 New Century InfoComm Tech Co., Ltd.	`0.90ms` from Taipei, TW
123.51.250.114	AS9919 New Century InfoComm Tech Co., Ltd.	`1.01ms` from Taipei, TW
123.51.246.254	AS4780 Digital United Inc.	`5.59ms` from Taipei, TW
123.51.220.96	AS9919 New Century InfoComm Tech Co., Ltd.	`1.32ms` from Taipei, TW
123.51.229.24	AS9919 New Century InfoComm Tech Co., Ltd.	`1.56ms` from Taipei, TW
123.51.232.254	AS4780 Digital United Inc.	`3.21ms` 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
101.126.49.178	AS137718 Beijing Volcano Engine Technology Co., Ltd.	`4.08ms` from Beijing, CN
102.132.243.82	AS37680 Cool Ideas Service Provider (Pty) Ltd	`2.17ms` from Cape Town, ZA
128.123.95.178	AS40246 New Mexico State University	`15.02ms` from Cheyenne, US
173.197.39.130	AS11427 Charter Communications Inc	`12.89ms` from Dallas, US
54.73.20.162	AS16509 Amazon.com, Inc.	`0.15ms` from Dublin, IE
14.170.66.34	AS45899 VNPT Corp	`5.06ms` from Hanoi, VN
61.35.98.50	AS3786 LG DACOM Corporation	`1.39ms` from Incheon, KR
175.127.51.146	AS9318 SK Broadband Co Ltd	`1.43ms` from Incheon, KR
147.99.79.34	AS2200 Renater	`4.68ms` from Marseille, FR
67.220.30.2	AS10242 US Internet Corp	`0.42ms` from Minneapolis, US
45.62.82.130	AS40440 NRTC Communications	`5.91ms` from Montreal, CA
207.246.209.2	AS19796 Shubert Organization, Inc.	`1.77ms` from New York City, US
193.102.202.2	AS197540 netcup GmbH	`0.62ms` from Nuernberg, DE
54.86.91.18	AS14618 Amazon.com, Inc.	`0.43ms` from Reston, US
195.144.253.2	AS20632 PJSC MegaFon	`1.90ms` from Saint Petersburg, RU
73.162.177.162	AS7922 Comcast Cable Communications, LLC	`11.22ms` from San Jose, US
201.28.170.130	AS10429 TELEFÔNICA BRASIL S.A	`0.95ms` from Sao Paulo, BR
83.182.88.66	AS1257 Tele2 Sverige AB	`7.76ms` from Stockholm, SE
183.247.238.226	AS56041 China Mobile communications corporation	`6.23ms` from Suzhou, CN
34.82.116.82	AS396982 Google LLC	`0.14ms` from The Dalles, US
106.139.174.130	AS2516 KDDI CORPORATION	`0.80ms` from Tokyo, JP
142.1.112.194	AS239 University of Toronto	`2.41ms` from Toronto, CA
152.3.100.34	AS13371 Duke University	`14.29ms` from Ashburn, US
48.217.5.114	AS8075 Microsoft Corporation	`0.58ms` from Ashburn, US
195.211.171.82	AS208909 Gurbtec Iguana Telecom SL	`2.10ms` from Barcelona, ES

Traceroute

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

traceroute -a -n -q1 -m5 123.51.242.106

traceroute to 123.51.242.106 (123.51.242.106): 5 hops max, 52 byte packets

1 [AS26548] 23.159.160.1 2.101 ms

2 [AS26548] 169.197.81.64 0.571 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in New York City, US

On April 13th 2026

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