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:          New Century InfoComm Tech. Co., Ltd.
descr:          1F~11F, No. 218, Rueiguang Road
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	New Century InfoComm Tech. Co., Ltd.	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

Hosted domains

There are 5 domain names hosted across 3 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

19 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.	`1.07ms` 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
20.72.76.56	AS8075 Microsoft Corporation	`0.15ms` from Boydton, US
192.237.175.120	AS19994 Rackspace Hosting	`1.27ms` from Chicago, US
184.92.60.8	AS11427 Charter Communications Inc	`16.15ms` from Dallas, US
101.46.152.40	AS136907 HUAWEI CLOUDS	`1.06ms` from Jakarta, ID
109.208.173.104	AS3215 Orange S.A.	`8.99ms` from Milan, IT
210.225.201.8	AS4713 NTT Communications Corporation	`0.80ms` from Osaka, JP
195.204.62.88	AS2116 GLOBALCONNECT AS	`2.32ms` from Oslo, NO
90.11.8.40	AS3215 Orange S.A.	`14.23ms` from Paris, FR
13.251.230.200	AS16509 Amazon.com, Inc.	`0.11ms` from Singapore, SG
175.183.25.136	AS18049 Taiwan Infrastructure Network Technologie	`11.94ms` from Taipei, TW
194.90.251.24	AS1680 Cellcom Fixed Line Communication L.P	`6.81ms` from Tel Aviv, IL
60.116.184.184	AS17676 SoftBank Corp.	`3.03ms` from Tokyo, JP
167.114.219.184	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
70.22.177.200	AS701 Verizon Business	`1.29ms` from Boston, US
120.60.251.88	AS9829 National Internet Backbone	`3.82ms` from Chennai, IN
3.144.209.88	AS16509 Amazon.com, Inc.	`0.66ms` from Columbus, US
34.42.17.216	AS396982 Google LLC	`0.11ms` from Council Bluffs, US
64.98.226.216	AS32133 Ting Fiber Inc.	`1.20ms` from Denver, US
189.70.43.72	AS7738 V tal	`16.60ms` from Fortaleza, BR
42.118.101.248	AS18403 FPT Telecom Company	`1.53ms` from Hanoi, VN
113.163.174.104	AS45899 VNPT Corp	`2.38ms` from Ho Chi Minh City, VN
147.160.140.72	AS16843 Celltex Networks, LLC	`16.06ms` from Monterrey, MX
153.200.160.216	AS4713 NTT Communications Corporation	`10.33ms` from Osaka, JP
90.3.181.40	AS3215 Orange S.A.	`1.75ms` from Paris, FR
40.66.32.216	AS8075 Microsoft Corporation	`0.43ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -f3 123.51.166.199

traceroute to 123.51.166.199 (123.51.166.199): 64 hops max, 52 byte packets

3 [AS6762] 213.144.166.210 0.306 ms

4 *

5 [AS3491] 63.223.9.226 203.318 ms

6 *

7 *

8 [AS4780] 139.175.58.209 206.716 ms

9 [AS4780] 139.175.57.218 192.822 ms

10 [AS4780] 192.72.107.98 193.866 ms

11 [AS9919] 220.228.23.6 193.637 ms

12 [AS9919] 61.66.238.246 192.749 ms

13 [AS9919] 123.51.166.199 194.712 ms

Measurement taken from

IPinfo ProbeNet in Santiago de Querétaro, MX

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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