123.51.136.0/22

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:        123.51.137.0 - 123.51.137.255
netname:        NCICNET-NET
descr:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
descr:          Taipei Taiwan
country:        TW
admin-c:        JC849-TW
tech-c:         IO1-TW
mnt-by:         MAINT-TW-TWNIC
changed:        [email protected] 20160818
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:         Jonas Chou
address:        New Century InfoComm Tech Co., Ltd
address:        2F, No.218, Rueiguang Road
address:        Taipei Taiwan
country:        TW
phone:          +886-2-7715-5131
fax-no:         +886-2-7700-9995
e-mail:         [email protected]
nic-hdl:        JC849-TW
changed:        [email protected] 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


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:         [email protected]
nic-hdl:        IO1-TW
changed:        [email protected] 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 123.51.136.0/22

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

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
123.51.138.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.40ms` from Taipei, TW
123.51.137.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.71ms` from Taipei, TW
123.51.136.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.69ms` from Taipei, TW
123.51.139.254	AS9919 New Century InfoComm Tech Co., Ltd.	`3.62ms` 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
123.63.32.214	AS55410 Vodafone Idea Ltd	`1.15ms` from Ahmedabad, IN
181.124.203.214	AS23201 Telecel S.A.	`8.75ms` from Asuncion, PY
45.25.123.134	AS7018 AT&T Enterprises, LLC	`3.90ms` from Atlanta, US
104.178.151.214	AS7018 AT&T Enterprises, LLC	`6.94ms` from Atlanta, US
89.134.158.246	AS21334 One Hungary Ltd.	`0.54ms` from Budapest, HU
71.194.189.38	AS7922 Comcast Cable Communications, LLC	`6.07ms` from Chicago, US
98.243.165.86	AS7922 Comcast Cable Communications, LLC	`8.73ms` from Flint, US
202.64.50.6	AS9381 HKBN Enterprise Solutions HK Limited	`0.72ms` from Hong Kong, HK
99.50.13.230	AS7018 AT&T Enterprises, LLC	`2.18ms` from Houston, US
74.114.193.246	AS36776 Five9 Inc.	`1.24ms` from Montreal, CA
81.254.172.70	AS3215 Orange S.A.	`5.25ms` from Paris, FR
186.225.27.54	AS262760 76 TELECOMUNICAÇÃO LTDA	`1.49ms` from Sao Paulo, BR
5.107.102.198	AS5384 Emirates Internet	`4.85ms` from Al Fujairah City, AE
23.24.101.54	AS7922 Comcast Cable Communications, LLC	`6.59ms` from Ashburn, US
99.6.106.6	AS7018 AT&T Enterprises, LLC	`10.54ms` from Atlanta, US
219.235.91.182	AS17968 Daqing zhongji petroleum telecommunication construction limited cpmpany	`10.42ms` from Changchun, CN
98.30.44.230	AS10796 Charter Communications Inc	`13.57ms` from Columbus, US
88.153.127.214	AS3209 Vodafone GmbH	`8.86ms` from Duesseldorf, DE
217.233.74.38	AS3320 Deutsche Telekom AG	`1.49ms` from Hamburg, DE
42.84.25.246	AS4837 CHINA UNICOM China169 Backbone	`10.95ms` from Liaoyang, CN
176.25.63.198	AS5607 Sky UK Limited	`7.42ms` from London, GB
125.199.160.118	AS2518 BIGLOBE Inc.	`3.60ms` from Osaka, JP
54.80.47.166	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
112.160.237.118	AS4766 Korea Telecom	`6.64ms` from Seoul, KR
218.146.169.134	AS4766 Korea Telecom	`6.76ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f4 123.51.139.254

traceroute to 123.51.139.254 (123.51.139.254): 64 hops max, 52 byte packets

4 [] 15.230.139.226 262.266 ms

5 [] 15.230.139.14 0.589 ms

6 *

7 *

8 [AS16509] 99.82.14.4 1.802 ms

9 [AS16509] 99.82.14.5 0.723 ms

10 [AS4780] 192.72.124.102 0.887 ms

11 [AS4780] 139.175.57.218 0.994 ms

12 [AS4780] 192.72.107.98 1.477 ms

13 [AS9919] 220.228.21.190 4.106 ms

14 [AS9919] 123.51.139.254 3.986 ms

Measurement taken from

IPinfo ProbeNet in Taipei, TW

On December 6th 2025

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